The Regulatory Status of Functional Foods in the Economic Integration Organizations of Latin America and the Caribbean / El Estatus Regulatorio de los Alimentos Funcionales en las Organizaciones de Integración Económica de Latinoamérica y el Caribe

Introduction. The legal declarations on functional foods of the four main economic integration organizations in Latin America and the Caribbean (LAC) ­ Pacific Alliance (PA), Caribbean Community (CARICOM), Southern Common Market (MERCOSUR) and Central American Integration System (SICA) - are based on the Codex Alimentarius system and do not regulate functional foods. The use of Codex in food marketing is an insufficient condition for its application in functional foods. Regulation based on scientific and technology results are required to be used in the economic integration organizations of LAC. Objective. The objective is to analyze the theoretical framework of the legal foundations that could govern the commercialization processes of functional foods, whose research advances have currently only been manifested in nutritional health. This article also seeks to address this gap through a systematic analysis of international regulations. Materials and methods. For this, a review of the literature emanating from two databases from 2018-2023 is carried by applying the legal-economic research method of documentary content analysis, applied to three general food marketing regulations: food safety declarations, regulations for inspections, food manufacturing and food labeling. Results. The results reveal the absence of specific legislation for functional foods in LAC economic integration organizations. Conclusions. The legal principle of marketing based on peremptory norm (also called jus cogens) can be facilitated through side letters, included in the contents of international contracts. along with the registration requirements of industrial property rights of the member countries associations(AU)

Introducción. Las declaraciones legales sobre alimentos funcionales de las cuatro principales organizaciones de integración económica de América Latina y el Caribe (ALC) ­ Alianza del Pacífico (AP), Comunidad del Caribe (CARICOM), Mercado Común del Sur (MERCOSUR) y Sistema de Integración Centroamericana (SICA) - se basan en el sistema del Codex Alimentarius y no regulan los alimentos funcionales. El uso del Codex en la comercialización de alimentos es condición insuficiente para su aplicación en alimentos funcionales. Se requiere que las regulaciones basadas en resultados científicos y tecnológicos sean utilizadas en los organismos de integración económica de ALC. Objetivo. Analizar el marco teórico de los fundamentos legales que podrían regir los procesos de comercialización de alimentos funcionales, cuyos avances en investigación actualmente solo se han manifestado en salud nutricional. Este artículo también busca abordar esta brecha a través de un análisis sistemático de las regulaciones internacionales. Materiales y métodos. Se realiza una revisión de la literatura emanada de dos bases de datos del período 2018-2023 aplicando el método de investigación jurídico- económica de análisis de contenido documental, aplicado a tres normas generales de comercialización de alimentos: declaraciones de seguridad alimentaria, normas para inspecciones, fabricación de alimentos y etiquetado de alimentos. Resultados. Los resultados revelan la ausencia de legislación específica para alimentos funcionales en las asociaciones comerciales de ALC. Conclusiones. El principio jurídico de comercialización basado en norma imperativa (también llamado jus cogens) puede facilitarse a través de cartas complementarias, incluidas en el contenido de los contratos internacionales. junto con los requisitos de registro de los derechos de propiedad industrial de las asociaciones de los países miembros(AU)

Propiedades nutritivas y tecno funcionales de barras de pseudocereales adicionadas con soya, mango y granada / Nutritional and techno functional properties of pseudocereal bars added with soy, mango and pomegranate

Las barras de cereal (BC), se comercializan como un snack saludable, no obstante, su calidad nutricional es baja. Una alternativa para mejorar esto, es la incorporación de ingredientes como pseudocereales, germinados y subproductos de fruta. Objetivo. Evaluar el contenido nutricional y propiedades tecnofuncionales de una barra de cereal formulada a partir de pseudocereales, germinados de soya y subproductos del procesamiento de frutas. Materiales y Métodos. Se desarrollaron 6 formulaciones (F0-F5). Se determinó el contenido de proteína y fibra cruda, se seleccionó la formulación que presentó el mayor contenido de estos componentes. A la BC seleccionada se le determinó la digestibilidad in-vitro de la proteína, las propiedades tecnofuncionales potencial prebiótico y actividad inhibitoria de ECA-I. Resultados. La formulación seleccionada fue F1 (13,6 g/100 g p.s. proteína y 13,1 g/100 g p.s. fibra cruda). La digestibilidad de la proteína fue del 69 %, el cual es cercano a valores reportados para algunos componentes de la BC. La capacidad de hinchamiento y retención de agua fue 2,55 ml/g; 12,74 %, respectivamente. El crecimiento de L. brevis en medio MRS modificado con BC no presentó diferencias estadísticas con el medio control, indicando el potencial prebiótico presente en la BC. La barra de cereal tuvo un 39% de actividad inhibitoria de ECA-I, demostrando la acción de los compuestos bioactivos posiblemente liberados durante la digestión de la BC. Conclusión. La formulación desarrollada presenta propiedades funcionales importantes y podría generar beneficios para la salud(AU)

Introduction. Cereal bars (CB) are marketed as a healthy snack; however, their nutritional quality is low. An alternative to improve this is the incorporation of ingredients such as soybean sprouts, which have a higher protein content than some seeds; as well as fruit by-products that contain important bioactive compounds. Objective. To evaluate the nutritional content and techno-functional properties of a cereal bar formulated from pseudocereals, soybean sprouts, and fruit processing by-products. Materials and Methods. 6 formulations (F0-F5) were developed. The content of protein and crude fiber was determined, the formulation that presented the highest content of these components was selected. The in-vitro digestibility of the protein, the technofunctional properties, potential prebiotic and inhibitory activity of ACE-I were determined for the selected BC. Results. The selected formulation was F1 (13.6g/100g p.s. protein and 13.1g/100 g p.s. crude fiber). Protein digestibility was 69%, which is close to reported values for some CB components. The swelling and water retention capacity was 2.55 ml/g; 12.74%, respectively. The growth of L. brevis in modified MRS medium with CB did not present statistical differences with the control medium, indicating the prebiotic potential present in CB. The cereal bar had 39% ACE-I inhibitory activity, demonstrating the action of bioactive compounds possibly released during CB digestion. Conclusion. The developed formulation has important functional properties and could generate health benefits(AU)

A comprehensive overview of miRNA targeting drought stress resistance in plants / Uma visão geral abrangente do miRNA visando a resistência ao estresse hídrico em plantas

MicroRNAs (miRNAs) are essential nonprotein-coding genes. In a range of organisms, miRNAs has been reported to play an essential role in regulating gene expressions at post-transcriptional level. They participate in most of the stress responsive processes in plants. Drought is an ultimate abiotic stress that affects the crop production. Therefore understanding drought stress responses are essential to improve the production of agricultural crops. Throughout evolution, plants have developed their own defense systems to cope with the adversities of environmental stresses. Among defensive mechanisms include the regulations of gene expression by miRNAs. Drought stress regulates the expression of some of the functionally conserved miRNAs in different plants. The given properties of miRNAs provide an insight to genetic alterations and enhancing drought resistance in cereal crops. The current review gives a summary to regulatory mechanisms in plants as well as miRNAs response to drought stresses in cereal crops. Some possible approaches and guidelines for the exploitation of drought stress miRNA responses to improve cereal crops are also described.

MicroRNAs (miRNAs) são genes essenciais não codificadores de proteínas. Em uma variedade de organismos, foi relatado que miRNAs desempenham papel essencial na regulação da expressão gênica em nível pós-transcricional. Eles participam da maioria dos processos responsivos ao estresse nas plantas. A seca é um estresse abiótico final que afeta a produção agrícola. Portanto, compreender as respostas ao estresse da seca é essencial para melhorar a produção de safras agrícolas. Ao longo da evolução, as plantas desenvolveram seus próprios sistemas de defesa para lidar com as adversidades do estresse ambiental. Entre os mecanismos de defesa está a regulação da expressão gênica por miRNAs. O estresse hídrico regula a expressão de alguns dos miRNAs funcionalmente conservados em diferentes plantas. As propriedades dadas dos miRNAs fornecem uma visão das alterações genéticas e aumentam a resistência à seca nas safras de cereais. A revisão atual apresenta um resumo dos mecanismos regulatórios nas plantas, bem como a resposta dos miRNAs ao estresse hídrico nas plantações de cereais. Algumas abordagens e diretrizes possíveis para a exploração das respostas do miRNA ao estresse da seca para melhorar as safras de cereais também são descritas.

Effect of VIT1/VIT2 overexpression on Fe and Cd accumulation in rice endosperm / 生物工程学报

Iron (Fe) deficiency and excess cadmium (Cd) in rice grain are important problems to be solved in agricultural production. Previous studies have shown that OsVIT1 and OsVIT2 are vacuolar iron transporters. In this study, wild-type ZH11 was selected as the background material and OsVIT1 and OsVIT2 were overexpressed in endosperm by using endosperm specific promoter Glb-1. Field experiments were conducted to study the effect of OsVIT1 and OsVIT2 overexpression on Fe and Cd accumulation in different parts of rice. The results showed that OsVIT1 overexpression in endosperm significantly reduced Fe content in grain by about 50%, while significantly increased zinc (Zn) and copper (Cu) contents in straw and Cu content in grain. OsVIT2 overexpression in endosperm significantly decreased Fe and Cd contents in grain by about 50%, and significantly increased Fe content in straw by 45%-120%. Overexpression of OsVIT1 and OsVIT2 in endosperm did not affect the agronomic traits of rice. In conclusion, OsVIT1 and OsVIT2 overexpression in endosperm reduced Fe accumulation in rice grain, which did not achieve the expected effect. OsVIT2 overexpression in endosperm also decreased Cd accumulation in grain and increased Fe accumulation in straw, which provided reference for iron biofortification and cadmium reduction in rice.

Evaluating the responses of some wheat landraces and cultivars cultivated locally in Saudi Arabia to three sources of irrigation water

This study was aimed to investigate the response of some wheat (Triticum aestivum L.) landraces to three irrigation sources, freshwater (FW), well water (WW), and treated municipal wastewater (TMW), regarding the impact on growth, yield, and grains elements contents. The results showed that the various wheat landraces irrigated with treated wastewater were significantly taller (117.3 cm) with multi tillers (22 tiller plant-1), had maximum spikes per plant (2.6), and longer weighty spikes (14.5 cm & 12.1 g). Landraces L1(Burr), L2 (Baldy Burr), C7 (Yecora Rojo), had maximum tillers, L4 (Alssamaa Burr), L5 (Bahaal Burr), L7 (Yecora Rojo) had more spikes per plant and the longer weighty spikes were recorded in L5 Baldy Burr, L1(Burr), heavy spikes were reported in L5 (Bahaal Burr) and L1(Burr). Moreover, these landraces had the highest yield per plant and 1000 grains weight (49.8 g, 12.5 g) respectively. The N, P, K, and Mg contents were increased under TMW, and their levels in landraces and cultivars in order are 3>L2>L4>L5>L1>C6>C7. Even Cu, Fe, Mn, Zn levels were higher in various landraces irrigated with TMW, however, L3, L2, and L4 had maximum contents of all microelements. TMW irrigation enhanced growth, yield, and grain quality in terms of essential elements. The irrigation of landraces L1, L4, L5 with TMW may be a feasible alternative for sustainable wheat production and safe water in arid regions such as Saudi Arabia.

Use of microalgal biomass as functional ingredient for preparation of cereal based extrudates: impact of processing on amino acid concentrations and colour degradation kinetics

Abstract Suitability of developing Spirulina incorporated cereal based low cost nutritious extrudates was analysed against extrusion processing parameters. Most significant extrusion processing parameters considered for present study were feed moisture (20-25%), die temperature (100-120 °C) and screw speed (50-100 rpm). Different extrusion conditions were used to obtain most acceptable rice: Spirulina blend extrudates. In present study before extrusion processing different additives (citric acid and sodium bicarbonate) were added in rice: Spirulina blend and checked its effect on colour degradation kinetics at varied packaging and storage conditions. Higher screw speed (100 rpm) indicating less residence time of feed material inside the barrel resulted in higher colour retention of rice: Spirulina (97:03) blend extrudates. Kinetics for rice: Spirulina (97:03) blend extrudates indicates faster rate of colour degradation in terms of lightness (half-life of 4 days) when packed in metalized polyethylene at 50°C with 65% relative humidity. Increased concentration of Spirulina (1-3%) in raw formulations resulted in increase in concentration of all amino acids. Impact of extrusion processing has shown non-significant (p ≤ 0.05) effect on amino acid concentrations of rice: Spirulina blend extrudates. Also, all the spirulina added samples showed good consumer acceptability with the score of 6.7

Produção de biscoitos recheados com formação de organogel na base gordurosa / Production of sandwich cookies with the formation of organogel in the fatty base

A fim de atender à demanda do público que atualmente busca por alimentos mais saudáveis, as indústrias têm procurado alternativas que possibilitem a aplicação de ingredientes que agreguem valor nutricional aos produtos. A redução de gorduras saturadas e trans em produtos alimentícios, bem como a inserção de cereais ou farinhas nutricionais, vem sendo aplicadas em produtos de panificação. Biscoitos recheados possuem como bases geralmente biscoitos à base de farinha de trigo. O objetivo foi desenvolver formulação de biscoitos recheados com substituição de gordura vegetal por organogel no recheio e de farinha de trigo por farinha de sorgo no biscoito, a fim de agregar valor nutricional ao produto. Foram desenvolvidos biscoitos recheados: 1) recheio controle e com substituição da gordura vegetal dos recheios por organogel elaborado com sistema emulsionado (colágeno + óleo vegetal + água), a fim de diminuir concentrações de gorduras saturadas e trans. 2) para a base elaborouse biscoitos controle (farinha de trigo) e com substituição parcial e total de farinha de trigo por farinha de sorgo em 50% (50FS) e 100% (100FS). Foram conduzidas nos recheios e das bases dos biscoitos análises físicas e físico-químicas (textura, atividade de água, cor, composição centesimal e reologia) para avaliação e para análise de estabilidade de 6 semanas. Os resultados apresentaram que o biscoito 50FS obteve melhor valor de textura (Controle: 16,09 ± 1,28 N; 50FS: 19,63 ± 5,68 N e 100FS: 10,09 ± 0,65 N) e menor teor de atividade de água (Semana 01: 0,327±0,01 e Semana 06: 0,389 ± 0,00) do que o biscoito controle, durante análise de estabilidade. O biscoito 100FS apresentou coloração mais avermelhada. Os biscoitos 50FS e 100FS apresentaram maior teor proteico do que o controle (Controle: 5,37 ± 0,23 %; 50FS: 5,64 ± 0,49 % e 100FS: 5,75 ± 0,49 %). O recheio com organogel apresentou maior dureza (N) durante análise de estabilidade do que o recheio controle (Semana 6 Organogel: 6,81±1,48; Controle: 4,29±0,38). Os parâmetros de adesividade, coesividade e gomosidade do recheio com organogel não apresentaram diferenças significativas (p > 0,05). Os valores de atividade de água da formulação com organogel foram mais altos do que o recheio controle (Semana 6 Organogel: 0,730±0,00; Controle: 0,555±0,01). O valor de L* foi maior para o recheio controle, apresentando coloração mais amarelada do que a formulação com organogel. O recheio com organogel apresentou redução de 65 % do teor lipídico e aumento do teor proteico. Os recheios controle, com organogel e de mercado apresentaram comportamento tixotrópico durante a avaliação reológica, sendo que o produto de mercado teve comportamento próximo à formulação controle, com recuperação quase total da estrutura. Foram desenvolvidos cinco produtos, sendo três inovadores com valor nutricional agregado, atendendo às legislações vigentes, vida útil mínima de 6 semanas e ao apelo do mercado atual, podendo ser comercializados como biscoito recheado

In order to satisfy the demand of the public that is currently looking for healthier foods industries have been looking for alternatives that allow the application of ingredients that add nutritional value to the products. The reduction of saturated and trans fats in food products, as well as the insertion of cereals or nutritional flours, has been applied in bakery products. Filled cookies are usually based on wheat flour. The objective was to develop a formulation of filled cookies with replacement of vegetable fat for organogel in the filling and wheat flour for sorghum flour in the biscuit, in order to add nutritional value to the product. In this study, cookies filled with vegetable fat and wheat flour were used as a control where: 1) filling was replaced by organogel elaborated with an emulsified system (collagen + vegetable oil + water); and 2) base was prepared with partial and total replacer of wheat flour for sorghum flour in 50% (50FS) and 100% (100FS). Physical and physicochemical analyzes (texture, water activity, color, proximate composition and rheology) were carried out on the fillings and bases of the biscuits for evaluation and for the stability analysis of 6 weeks. The results showed that the 50FS cookies had a better texture value (Control: 16,09±1,28 N; 50FS: 19,63±5,68N and 10,09±0,65 N) and lower content of water activity (Week 1: 0,327±0,01 and Week 6: 0,389±0,00) than the control cookie during stability analysis. The 100FS had a more reddish color. The 50FS and 100FS cookies had a higher protein content than the control (Control: 5,37±0,23 %; 50FS 5,64±0,49 %). The fillings with organogel showed a higher hardness (N) than the control during stability analysis (Week 6 Organogel: 6,81±1,48; Control: 4,29±0,38). The parameters of adhesiveness, cohesiveness and guminess of the filling with organogel showed no significant differences (p> 0.05). The water activity values of the organogel formulation were higher than the control filling (Week 6 Organogel: 0,730±0,00; Control: 0,555±0,01). The value of L * was higher for the control filling, showing a more yellowish color than the formulation with organogel. The filling with organogel showed a 65% reduction in lipid content and an increase in protein content. The control, organogel and market fillings showed a thixotropic behavior in the rheological evaluation, and the market product had a behavior close to the control formulation, with almost total recovery of the structure. Five products were developed, three of which were innovative with added nutritional value, in compliance with current legislation, a minimum shelf life of 6 weeks, which can be sold as a stuffed cookies.

Triticale silage replaces sorghum silage in finishing of Braford heifers / Silagem de triticale substitui silagem de sorgo na terminação de novilhas da raça Braford

The aim of this study was to evaluate the effect of sorghum silage substitution with different proportions of triticale silage on the performance and carcass of Braford heifers. Twenty-four Braford heifers were randomly assigned to four diets where sorghum silage was replaced at 0%, 30%, 60%, and 100% for triticale silage in a feedlot system. During sixty-tree days of the experiment, the feed intake, feed ratio conversion, and average daily gain were measured. The heifers were slaughtered and the effects of the sorghum and triticale silage in carcass characteristics were evaluated. The replacement of sorghum silage with triticale silage did not affect the feed intake and average daily gain (P> 0.05). Feed gain ratio was higher for the heifers that received lower proportions of triticale silage (0% and 30%) in replace sorghum silage (P <0.05). Eye loin area and fat thickness were similar among treatments (P<0.05). Other carcass characteristics, such as slaughter live weight, dressing percentage, conformation and fat classification were similar among experimental treatments (P<0.005). Triticale silage can replace sorghum silage for finishing beef heifers in feedlot system and provides similar carcass characteristics.(AU)

O objetivo deste trabalho foi avaliar o efeito da substituição da silagem de sorgo por diferentes proporções de silagem de triticale no desempenho e na carcaça de novilhas Braford. A silagem de sorgo foi substituída em 0%, 30%, 60% e 100% pela silagem de triticale como fonte de volumoso na alimentação de 24 novilhas da raça Braford, em um sistema de confinamento. O período experimental total foi de 63 dias para a avaliação do consumo dos componentes da ração, a conversão alimentar e o ganho médio diário. Ao final do experimento, os animais foram abatidos e avaliados em relação às características de carcaça. A substituição da silagem de sorgo pela silagem de triticale não apresentou efeito no consumo dos componentes da ração e no ganho médio diário entre as novilhas (P>0,05). A conversão alimentar foi melhor para as novilhas que receberam menores proporções de silagem de triticale (0% e 30%) em substituição à silagem de sorgo (P<0,05). As características das carcaças foram semelhantes entre os animais independentemente da fonte de volumoso. A silagem de triticale apresenta-se como alimento alternativo à silagem de sorgo em regiões de transição climática para a terminação de novilhas de corte, proporcionando o mesmo desempenho animal e as mesmas características de carcaça.(AU)

Comparison of digestibility parameters of commercial dry dog foods with different contents / [Comparação dos parâmetros de digestibilidade de alimentos secos comerciais para cães com diferentes conteúdos]

This study was aimed to evaluate and compare the nutrient digestibility of grain-inclusive and grain-free commercial dry dog foods using the method of total fecal collection and also explore their effects on fecal consistency. 21 different foods, including 14 grain-inclusive (7 grain-chicken meat, 7 grain-lamb meat) and 7 grain-free were investigated. 12 adult Golden retriever dogs (age 3-4 years, body weight=22.5±1.7kg) were divided into 3 groups. The results of digestibility trials indicated that the grain-lamb meat foods showed the highest digestibility of dry matter, organic matter, and crude fiber. Overall, in the grain-inclusive and grain-free group evaluation, grain-inclusive foods showed higher digestibility of crude fibers while grain-free foods had higher ether extract digestibility whereas the differences in the scores of fecal consistencies between the groups were insignificant. Contrary to popular belief, grain-inclusive foods were more digestive than grain-free foods in terms of dry matter and organic matter. There are studies involving starch sources in the dog food formulations, but there is a need to study the digestibility of complete dog food to supply them with adequate nutrients. Also, each diet should be assessed based on its overall nutrient profile and digestibility rather than individual ingredients.(AU)

Este estudo teve como objetivo avaliar e comparar as digestibilidades de nutrientes de alimentos secos para cães comerciais, com grãos e livres de grãos, usando o método de coleta fecal total, bem como explorar seus efeitos na consistência fecal. Vinte e um alimentos diferentes, incluindo 14 grãos inclusivos (sete grãos de carne de frango, sete grãos de carne de cordeiro) e sete livres de grãos, foram investigados. Doze cães Golden Retriever adultos (idade de três-quatro anos, peso corporal = 22,5 ± 1,7kg) foram divididos em três grupos. Os resultados dos ensaios de digestibilidade indicaram que os alimentos cárneos de cordeiro apresentaram as maiores digestibilidades de matéria seca, matéria orgânica e fibra bruta. Em geral, na avaliação do grupo com grãos inclusivos e do grupo sem grãos, os alimentos com grãos inclusivos mostraram maior digestibilidade das fibras brutas, enquanto os alimentos sem grãos tiveram maior digestibilidade do extrato etéreo; já as diferenças nos escores de consistência fecal entre os grupos foram insignificantes. Ao contrário da crença popular, os alimentos com inclusão de grãos eram mais digestivos do que os sem grãos, em termos de matéria seca e matéria orgânica. Existem estudos envolvendo fontes de amido em formulações de rações, mas é necessário estudar a digestibilidade de rações completas para fornecer nutrientes adequados. Além disso, cada dieta deve ser avaliada com base em seu perfil geral de nutrientes e digestibilidade, em vez de ingredientes individuais.(AU)

Computation-aided design of the flexible region of zearalenone hydrolase improves its thermal stability / 生物工程学报

The zearalenone hydrolase (ZHD101) derived from Clonostachys rosea can effectively degrade the mycotoxin zearalenone (ZEN) present in grain by-products and feed. However, the low thermal stability of ZHD101 hampers its applications. High throughput screening of variants using spectrophotometer is challenging because the reaction of hydrolyzing ZEN does not change absorbance. In this study, we used ZHD101 as a model enzyme to perform computation-aided design followed by experimental verification. By comparing the molecular dynamics simulation trajectories of ZHD101 at different temperatures, 32 flexible sites were selected. 608 saturated mutations were introduced into the 32 flexible sites virtually, from which 12 virtual mutants were screened according to the position specific score and enzyme conformation free energy calculation. Three of the mutants N156F, S194T and T259F showed an increase in thermal melting temperature (ΔTm>4 °C), and their enzyme activities were similar to or even higher than that of the wild type (relative enzyme activity 95.8%, 131.6% and 169.0%, respectively). Molecular dynamics simulation analysis showed that the possible mechanisms leading to the improved thermal stability were NH-π force, salt bridge rearrangement, and hole filling on the molecular surface. The three mutants were combined iteratively, and the combination of N156F/S194T showed the highest thermal stability (ΔTm=6.7 °C). This work demonstrated the feasibility of engineering the flexible region to improve enzyme performance by combining virtual computational mutations with experimental verification.

Effects of by-products of peach palm and grape on nutritional, physico-chemical and sensory properties of extruded breakfast cereals / Efeito dos subprodutos de palmito pupunha e uva nas propriedades nutricionais, físico-químicas e sensoriais de cereais matinais extrusados

Extruded breakfast cereals they have low nutritional and high energetic values. The aim of this study was to develop extruded breakfast cereals by replacing part of corn meal by different proportions of by-products of grape (5-10%) and peach palm (7.5-15%). Samples were sweetened with xylitol while moisture was controlled with grape juice. Six formulations, which were produced in a 22 experimental design, were analyzed regarding their composition, besides their technological, mechanical, antioxidant and sensory properties. Addition of different amounts of flours, produced with the wastes of grape (GF) and peach palm (PF), increased the dietary fibers and antioxidant contents of cereals formulations. However, at the highest levels addition, there was a decrease in expansion and an increase in hardness and water solubility properties. Thus, the incorporation of grape and peach palm by-products at smaller proportions showed higher viability, since they exhibited satisfactory sensory acceptance, technological properties and bowl life.

Os cereais matinais apresentam baixo valor nutricional e alto valor energético.O objetivo deste estudo foi desenvolver cereais matinais extrusados substituindo parte da farinha de milho por diferentes proporções de subprodutos de uva (5-10%) e palmito pupunha (7.5-15%). As formulações foram adoçadas com xilitol e a umidade controlada com suco de uva. Seis formulações foram produzidas utilizando o delineamento experimental 22,onde foram analisados com relação à composição proximal, propriedades tecnológicas, mecânicas, antioxidantes e sensoriais. A adição de diferentes quantidades de farinhas produzidas com os subprodutos de uva (FU) e palmito pupunha (FP) aumentou as fibras dietéticas e o conteúdo de antioxidantes nas formulações de cereais matinais desenvolvidas. No entanto, nos mais altos níveis de adição ocorreram um decréscimo na expansão e aumento na dureza e solubilidade em água. A incorporação de subprodutos de uva e palmito pupunha em menores proporções mostrou alta viabilidade, pois apresentaram satisfatória aceitação sensorial, propriedades tecnológicas e bowl life.

Contenido de humedad, proteínas y minerales en diez variedades de quínoa chilena cultivadas en distintas zonas geográficas / Moisture, protein and mineral content of ten varieties of Chilean quinoa grown in different geographic zones

RESUMEN El consumo de quínoa (Chenopodium quínoa Willd) ha aumentado, renovando el interés en su composición y valor nutricional. El objetivo del estudio fue determinar los contenidos de humedad, cenizas, proteínas y algunos minerales (Fe, Zn y Cu) de 10 variedades de quínoa chilena cultivadas en cuatro zonas geográficas, utilizando metodologías analíticas validadas. Las muestras (n=10) de quínoa cultivada en Vallenar, Los Tilos, Hidango y Santa Rosa fueron analizadas en triplicado. Los métodos normalizados aplicados fueron: humedad; cenizas; proteínas; hierro, zinc y cobre, bajo los requisitos de ISO/IEC 17025:2017. Los datos se analizaron usando análisis de varianza para comparar variedades y zonas de cultivo. Las muestras contienen en promedio 16,6 g de proteínas/100 g (14,4-17,5), 8,97 mg de hierro/100 g (7,71-10,76), 3,38 mg de zinc/100 g (2,17-5,30), y 0,83 mg de cobre/100 g (0,60-1,10). Las variedades cultivadas en Vallenar, Los Tilos e Hidango mostraron mayor contenido proteico que las de Santa Rosa (p<0,05). Todas las variedades tienen un contenido destacado de los microminerales cobre, zinc y hierro. Los resultados aportan información relevante sobre el valor nutricional de la quínoa chilena, entregando datos para la actualización de las Tablas de Composición Química de alimentos.

ABSTRACT The intake of quinoa (Chenopodium quinoa Willd) has increased worldwide. Its revival has renewed interest in its composition and nutritional value. The aim of this study was to determine the contents of moisture, ash, protein, and some minerals (Fe, Zn and Cu) of ten varieties of Chilean quinoa grown in various geographical zones, using validated analytical methods under rule ISO/IEC 17025:2017. Grains grown in Vallenar, Los Tilos, Hidango, and Santa Rosa were analyzed in triplicates, using previously validated analytical methodologies and certified reference materials. The normalized methods used were: moisture; ash; protein; mineral, under the ISO/IEC 17025:2017 norm. Data were analyzed using ANOVA to compare varieties and growth zones. The analyzed quinoa grains contain a mean of 16.6 g proteins/100 g (range 14.4-17.5), 8.97 mg iron/100 g (range 7.71-10.76), 3.38 mg zinc/100 g, and 0.83 mg copper/100 g (range 0.60-1.10). The varieties grown in Vallenar, Los Tilos and Hidango showed higher protein content compared to Santa Rosa (p<0.05). All varieties exhibit considerable microminerals content, such as copper, zinc, and iron. These results provide relevant information about the nutritional value of Chilean quinoa and updated reliable data for Food Composition Tables.

Agronomic parameters and morpho-agronomic characteristics of genetically modified maize hybrids compared to conventional maize hybrids / Parâmetros agronômicos e características morfoagronômicas de híbridos de milho geneticamente modificados em comparação com híbridos de milho convencionais

The objectives were to study the behavior of fifteen pre-commercial upland maize hybrids, analyze their agronomic performance regarding grain yield, and evaluate productivity components, as well as morpho-agronomic characteristics, in the Midwest Region of Brazil. Two experiments were conducted in the municipalities of Formosa-GO and Planaltina-DF, 2016/17 crop year. Both consisted of five pre-commercial maize hybrid platforms (HPA252, HPB262, HPB621, HPB646, and HPD354). Each platform consisted of three different versions: conventional, transgenic with a Btgene that expresses the protein Cry1F, and transgenic with two Bt genes that express the proteins Cry1F and Cry1AB. The experiment was randomized blocks with four replications. The experimental plot was four lines five meters long considering the two central lines as useful. The lines were spaced 0.75 meters apart, and the final density was five plants per linear meter. To estimate grain yield, the plots were harvested, and the weight was extrapolated to kg.ha-1. The moisture was standardized at 14%. Data were submitted to analysis of variance, and the means were compared by Tukey test at 5% probability using the Sisvar software. Grain yield between treatments ranged from 8,381 to 12,908 kg.ha-1, and the average yield was 11,234 kg.ha-1. The parameters evaluated were divided into two groups. The first group contained parameters determining grain yield: grain depth, thousand grains weight, number of rows of grains, number of grains per row, and grain yield. The second group contained morpho-agronomic parameters that directly interfere with resistance to lodging and plant breaking: plant height, ear insertion height, and mean stem diameter. There was no direct effect of the transgenes on the evaluated hybrids since the classification of productivity was not divided into conventional and transgenic classes. It is suggested that the HPA252YH, HP621H and HP646H versions be discarded because grain yield performance was unsatisfactory compared to their respective conventional and transgenic counterparts. The parameters GD and W1000 are more effective for grain yield estimation than NR and NG. It was observed for HP621H that, in addition to a lower grain yield, there was a significant reduction in stem diameter, indicating a possible reduction in lodging tolerance and/or plant breaking when exposed to adverse climatic conditions such as windstorms. For the HPD354H version, the release of the transgenic counterpart HPD354YH is preferentially indicated since the H version had a significant reduction in stem diameter and a possible greater tolerance to lodging and/or plant breaking under the same conditions. KEYWORDS:Spodoptera frugiperda. Transgenic events. Performance of grains. Plant lodging. Zea mays. INTRODUCTIONStudies analyzing the efficacy of transgenic maize events that control Spodoptera frugiperda are often conducted as new transgenic events are studied and/or commercially released, both in Brazil and in other South American countries. Such studies aim to evaluate the effects of Bt proteins on larva control, genetic control of transgenic plants, and monitoring and efficiency of Bt (FERNANDES et al. 2010; MENDES et al. 2011). In the last years, several researchers have published works in Brazil and in the world on this topic. Soon after the commercial release of the first transgenic Btevent that provides resistance to the fall armyworm, Fernandes et al. (2010) evaluated the effects of MON810 maize, which expresses the Cry1Ab toxin, on S. frugiperda under field conditions and with a natural pest infestation during the 1999/2000 and 2000/2001 harvests. MON810 maize significantly reduces caterpillar infestation of S. frugiperda and the consequent damage to plants Received: 08/04/19 Accepted: 20/12/19

Os objetivos foram estudar o comportamento de quinze híbridos pré-comerciais de milho, seus desempenhos agronômicos referentes à produtividade de grãos e os componentes diretos de produtividade, bem como suas características morfoagronômicas no Centro-Oeste do Brasil. Para tal, foram instalados dois experimentos nos municípios de Formosa-GO e Planaltina-DF no ano safra 2016/17, ambos constituídos por cinco plataformas de híbridos pré-comerciais de milho HPA252, HPB262, HPB621, HPB646 e HPD354. Cada plataforma foi constituída por três diferentes versões, convencional, transgênica que expressa à proteína Cry1F e transgênica que expressa as proteínas Cry1F e Cry1AB. O delineamento experimental adotado foi de blocos casualizados com quatro repetições. A parcela experimental constituiu-se por quatro linhas de 5 metros, considerando-se úteis as duas linhas centrais. Estas, foram espaçadas de 0,75 metros e a densidade final foi de 5 plantas por metro. Após a colheita, os pesos das parcelas foram extrapolados para kg.ha-1 e a umidade foi padronizada em 14%. Os dados foram submetidos à análise de variância e as médias foram comparadas pelo teste Tukey a 5%, utilizando-se o software Sisvar. O rendimento de grãos variou entre 8.381 e 12.908 kg.ha-1 e a produtividade média foi de 11.234 kg.ha-1. Os parâmetros avaliados foram divididos em dois grupos. Um com os parâmetros determinadores de produtividade de grãos, profundidade de grãos, peso de mil grãos, número de fileiras de grãos, número de grãos por fileira e produtividade de grãos e outro grupo dos parâmetros morfoagronômicos que interferem diretamente a resistência ao acamamento e quebramento de plantas, altura de plantas, altura de inserção de espiga e diâmetro médio de colmo. Não houve efeito direto dos transgenes nos híbridos avaliados em relação a produtividade de grãos. Sugere-se que as versões HPA252YH, HP621H e HP646H sejam descartadas, pois o desempenho de rendimento de grãos, quando comparados às suas respectivas contrapartes convencionais e transgênicas, foram insatisfatórias. Os parâmetros PG e P1000 mostraram-se mais efetivos para estimação de produtividade de grãos que NF e NG. Observou-se em HP621H, que além de menor produtividade de grãos, houve uma redução significativa do diâmetro de colmo, indicando uma possível redução da tolerância ao acamamento e/ou quebramento de plantas quando exposta a condições climáticas adversas como vendavais. Para a versão HPD354H, indica-se preferencialmente o lançamento da contraparte transgênica HPD354YH, pois a versão H teve uma redução significativa do diâmetro de colmo e também uma possível maior tolerância ao acamamento e/ou quebramento de plantas nas mesmas condições.

Análisis cinemático de la masticación de una granola prototipo en contraste con la masticación de maní / Kinematic analysis of chewing by using a granola prototype and peanut

La masticación se ha estudiado desde diferentes puntos de vista, utilizando alimentos de prueba naturales y artificiales. La evidencia es escasa cuando se analizan alimentos a base de cereales, que van desde cereales para el desayuno hasta barras de granola. El investigar este tipo de alimentos, se vuelve importante para entender el comportamiento de la masticación frente a alimentos con diferentes composiciones y texturas, y como estas características pueden influir en el proceso masticatorio. Se analizó la masticación desde un punto de vista cinemático, en sujetos jóvenes dentados. El alimento de prueba utilizado fue granola prototipo y maní, este último se ha estudiado en sujetos con rehabilitación protésica y su consumo se recomienda en esta población. Se analizaron las características cinemáticas de la masticación como numero de ciclos, frecuencia masticatoria, velocidad de masticación de ascenso y descenso, y el área de masticación en los tres planos del espacio. Se relacionaron los movimientos masticatorios con los movimientos mandibulares bordeantes que conformaron el polígono de Posselt, este también se analizó en los tres planos espaciales. En todas las variables analizadas la granola presento valores mayores, excepto en el número de ciclos masticatorios, sólo se encontraron diferencias estadísticamente significativas (p= 0,03) al comparar la velocidad (ascenso y descenso) y el área de masticación en el plano horizontal.

Chewing has been studied from different points of view, using natural and artificial foods test. When analyzing cereal-based foods, from breakfast cereals to granola bars, the evidence is scarce. Investigate this type of food is important to understand the behavior of chewing, with foods of different compositions and textures, and how these characteristics can influence the chewing process. Chewing was analyzed from a cinematic point of view, in young subjects complete dental. The test food used was prototype granola and peanuts, last one has been studied in subjects with prosthetic rehabilitation and its consumption is recommended in this population. The kinematic characteristics of chewing were analyzed: number of cycles, chewing frequency, ascent and descent chewing speed, and the chewing area in the three planes of space. The masticatory movements were related to the bordering mandibular movements, that formed the Posselt polygon, which was also analyzed in the three spatial planes. In all the variables analyzed, granola showed higher values, except in the number of chewing cycles, only statistically significant differences (p = 0.03) were found when comparing speed (ascent and descent) and the chewing area in the horizontal plane.

Parâmetros zootécnicos e desenvolvimento da moela de frangos de corte em dietas de sorgo grão e a inclusão de carotenoides / Zootechnical parameters and gizzard development of broilers fed with sorghum grain and carotenoid supplementation

Objetivou-se avaliar a substituição do milho pelo sorgo grão, moído ou inteiro, e a inclusão de carotenoides sintéticos em rações de frangos de corte, sobre parâmetros zootécnicos e desenvolvimento da moela. Utilizaram-se 960 frangos, machos e fêmeas, da linhagem Cobb 500, que foram submetidos a quatro dietas: à base de milho (M), à base de sorgo moído (SM) ou ainda acrescido de carotenoides sintéticos (SMC) e à base de sorgo inteiro (SI). Foram avaliados peso vivo, consumo de ração, conversão alimentar, rendimento de carcaça e cortes, peso de moela. A ração de SI proporcionou maior desenvolvimento de moela, embora, aos sete dias, não tenha havido diferenças no peso vivo e na conversão alimentar entre as dietas. SM e SMC proporcionaram maiores valores de peso vivo aos 28 dias do que SI. As conversões alimentares real e tradicional aos 40 dias foram semelhantes para as rações de sorgo, com um melhor rendimento de carcaça em SM e SMC. O sorgo moído pode substituir integralmente o milho nas rações para frangos de corte, sem comprometimento de desempenho e rendimento de carcaça, e, na forma grão inteiro, é zootecnicamente viável.(AU)

This study aimed to evaluate the replacement of corn with ground or whole grain sorghum and the inclusion of carotenoids in broiler feed on zootechnical parameters and gizzard development. A total of 960 Cobb 500 broilers, half of each sex, were submitted to four feeds: ground corn (M), ground sorghum (SM) ground sorghum with carotenoid supplementation (SMC) and whole grain sorghum (SI). Body weight, feed intake and feed conversion, carcass and cuts yield, gizzard weight were evaluated. SI feed provided a greater development of gizzard, however at 7 days there were no differences in body weight and feed conversions between diets. SM and SMC provided higher values of body weight at 28 days than SI feed. Feed conversion at 40 days were the same for the sorghum feeds with a better carcass yield in SM and SMC. Ground sorghum can completely replace corn in broiler diets without compromising performance and carcass yield, and whole grain sorghum is zootecnaly viable.(AU)

Chemical characterization of the antioxidant, antihyperglycemic and antihypertensive capacities of red rice (Oryza sativa L. ) whole flour / Caracteristicas físico-químicas, capacidad antioxidante, anti-hiperlucémica y antihipertensiva de la harina de arroz rojo (Oryza sativa L. )

Oryza sativa L. rice has large amounts of proteins and minerals, besides presenting several pigmented varieties. Red rice is distinguishable due to its great nutritional value compared to the regular white variety. Its red pericarp pigmentation is due to the bioactive compounds that are responsible for its health benefits. The objective of this study was to evaluate the physical-chemical characterization, antioxidant, antihyperglycemic and antihypertensive capacity of flours of three different red rice cultures (Rubi, Virgínia and Pequeno). All samples presented specific levels of carbohydrates for cereals with low fat content and excellent levels of protein and resistant starch. In addition, the samples had a high antioxidant, antihyperglycemic and antihypertensive capacity. Antihyperglycemic capacities were measured as percent inhibition for amylase (56.7-76.5%) and glycosidase (81.0-76.6%), respectively, and antihypertensive capacity as the percentage inhibition of the angiotensin converting enzyme (38.4-34.7%). In addition, Pequeno flour presented the best results for antioxidant and antihyperglycemic capacity in comparison to the two flours tested. Thus, all red rice flours can be a source of functional compounds when added to food.

El arroz integral (Oryza sativa L.) posee importantes cantidades de proteínas, vitaminas, minerales y fitoquímicos. El arroz rojo se destaca por su gran valor nutricional. La pigmentación roja del pericarpio está asociado al contenido de compuestos bioactivos, que están directamente relacionados a los beneficios de salud humana. Teniendo en cuenta lo antes expuesto se propuso evaluar las caracteristicas físico-químicas, capacidad antioxidante, anti-hiperglucémica y antihipertensiva de las harinas de tres diferentes cultivos de arroz rojo (Rubí, Virginia y Pequeño). Todas las muestras presentaron niveles específicos de carbohidratos para cereales con bajo contenido de grasa y altos contenidos de proteína y almidón resistente. Además, las muestras presentaron una alta capacidad antioxidante, anti-hiperglucémica y antihipertensiva. La capacidad anti-hiperglicémica se midió en porcentaje de inhibidores de α-amilasa (56.7-76.5%) y α-glucosidasa (81.0-76.6%), respectivamente; y capacidad antihipertensiva como el porcentaje de inhibición de la enzima convertidora de la angiotensina (38.4-34.7%). El cultivar Pequeño presentó mayor capacidad antioxidante y anti-hiperglucémica en comparación a los demás cultivares. Así, todas las harinas de arroz rojo pueden ser vehículos de compuestos funcionales en los alimentos.

Improvement of anther cultures conditions using the Taguchi method in three cereal crops

Background: Plant tissue cultures have the potential to reprogram the development of microspores from normal gametophytic to sporophytic pathway resulting in the formation of androgenic embryos. The efficiency of this process depends on the genotype, media composition and external conditions. However, this process frequently results in the regeneration of albino instead of green plants. Successful regeneration of green plants is affected by the concentration of copper sulfate (CuSO4) and silver nitrate (AgNO3) and the length of induction step. In this study, we aimed at concurrent optimization of these three factors in barley (Hordeum vulgare L.), wheat (Triticum aestivum L.), and triticale (x Triticosecale spp. Wittmack ex A. Camus 1927) using the Taguchi method. We evaluated uniform donor plants under varying experimental conditions of in vitro anther culture using the Taguchi approach, and verified the optimized conditions. Results: Optimization of the regeneration conditions resulted in an increase in the number of green regenerants compared with the control. Statistic Taguchi method for optimization of the in vitro tissue culture plant regeneration via anther cultures allowed reduction of the number of experimental designs from 27 needed if full factorial analysis is used to 9. With the increase in the number of green regenerants, the number of spontaneous doubled haploids decreased. Moreover, in barley and triticale, the number of albino regenerants was reduced. Conclusion: The statistic Taguchi approach could be successfully used for various factors (here components of induction media, time of incubation on induction media) at a one time, that may impact on cereals anther cultures to improve the regeneration efficiency

Nutritional quality, child-oriented marketing and health/nutrition claims on sweet biscuit, breakfast cereal and dairy-based dessert packs in Argentina / Calidad nutricional, mercadotecnia orientada a la infancia y propaganda sobre salud/nutrición en galletas dulces, cereales para el desayuno y embalajes de postres lácteos en Argentina / Qualidade nutricional, marketing concentrado no público infantil e alegações nutricionais e de saúde nas embalagens de biscoitos, cereais matinais e sobremesas lácteas na Argentina

As children are particularly vulnerable to marketing, this study analyzes marketing techniques and health/nutrition claims in food packaging and evaluates the nutritional quality in three food categories: sweet biscuits, breakfast cereals and dairy-based desserts. This descriptive study analyzed marketing techniques and claims included in food packaging (n = 301) in one of the largest retailers in Argentina. Trained researchers coded data following an adapted version of the INFORMAS protocol to account for local food packaging regulations. Nutritional quality was assessed using both Pan American Health Organization Nutrient Profile (PAHO NPM) and the WHO Regional Office for Europe Nutrient Profile (WHO Euro NPM) models. Under the PAHO model, 87% (n 262) of the product sample presented excess content of at least one nutrient ("less healthy" products), and 91% (n = 273) should not be marketed to children according to the WHO Euro model. Almost 40% of less healthy food products displayed nutrition claims on their package. Characters or celebrity endorsements, which are particularly attractive to children, featured in 32% of less healthy products, being more frequent in less healthy food products than in healthier ones. Results indicate that packaging for food products with low nutritional value often includes powerful marketing elements in Argentina, which renders young children very vulnerable to obesogenic influence. Moreover, the real nutritional value of the products analyzed were often at odds with the health claims shown on its package. Food labeling policies must be improved in Argentina to guarantee people's health protection against deceptive advertising.

Los niños son particularmente vulnerables a la mercadotecnia; este estudio analiza las técnicas de mercadotecnia y la propaganda sobre salud/nutrición en los paquetes de comida, además de evaluar la calidad nutricional en tres categorías de comida: galletas dulces, cereales para el desayuno y postres lácteos. Este estudio descriptivo analizó las técnicas de mercadotecnia y propaganda incluida en los embalajes de galletas dulces, cereales para el desayuno y postres (n = 301) en uno de los distribuidores más grandes de Argentina. Investigadores cualificados codificaron los datos siguiendo una versión adaptada del protocolo INFORMAS, con el fin de evaluar la regulación respecto a los embalajes de comida local. La calidad nutricional fue evaluada usando tanto los modelos del Perfil Nutricional de la Organización Panamericana de la Salud (OPS NPM) y Organización Munidal de la Salud (OMS Euro NPM). Un 87% (n = 262) de la muestra del producto presentó un exceso de contenido de al menos un nutriente (productos "menos saludables"), según el OPS NPM, y un 91% (n = 273) de la muestra no debería haber sido etiquetada para niños, según el OMS Euro NPM. Casi un 40% de los productos menos saludables contaban con propaganda nutricional en sus embalajes. Personajes infantiles o el respaldo de famosos, que son particularmente atractivos para los niños, fueron destacados en un 32% de los productos menos sanos, y fueron más frecuentes entre los productos menos sanos que entre los más saludables. Los resultados indican que los embalajes de productos alimenticios con un valor nutricional bajo, a menudo incluyen elementos poderosos de mercadotecnia en Argentina, lo que provoca que los niños más jóvenes sean más vulnerables a la influencia obesogénica. Asimismo, el valor real nutricional de los productos analizados estuvo a menudo en conflicto con la propaganda sobre los beneficios para la salud mostrados en su embalaje. Las políticas de etiquetado deberían mejorar en Argentina para garantizar la protección a la salud de toda la población frente a la publicidad engañosa.

As crianças são particularmente vulneráveis ao marketing. O estudo analisa as técnicas publicitárias e alegações nutricionais e de saúde nas embalagens de alimentos e avalia a qualidade nutricional de três categorias de alimentos: biscoitos, cereais matinais e sobremesas lácteas. O estudo descritivo analisou as técnicas de marketing e as alegações impressas nas embalagens de biscoitos, cereais matinais e sobremesas lácteas (n = 301) em uma das maiores cadeias de varejo da Argentina. Pesquisadores treinados codificaram os dados de acordo com uma versão adaptada do protocolo INFORMAS para levar em conta a regulamentação argentina de rotulagem de alimentos. A qualidade nutricional foi avaliada com os modelos de Perfil de Nutrientes da Organização Pan-Americana da Saúde (OPAS NPM) e da Organização Mundial da Saúde (OMS Euro NPM). Ao todo, 87% (n = 262) das amostras dos produtos apresentavam um conteúdo excessivo de pelo menos um ingrediente (os produtos "menos saudáveis") de acordo com o OPAS NPM, enquanto 91% (n = 273) dos produtos não deveriam ser promovidos para crianças, de acordo com o OMS Euro NPM. Quase 40% dos produtos alimentícios menos saudáveis mostravam alegações nutricionais nas embalagens. Personagens conhecidos pelo público infantil, além do endosso de celebridades, que são particularmente atraentes para as crianças, foram destacados em 32% dos produtos menos saudáveis, e eram mais frequentes nos produtos menos saudáveis do que nos mais saudáveis. Os resultados indicam que as embalagens dos produtos alimentícios com menor valor nutritivo muitas vezes fazem uso de elementos poderosos de marketing na Argentina, deixando as crianças altamente vulneráveis à influência obesogênica. Muitas vezes o verdadeiro valor nutritivo dos produtos analisados não estava de acordo com as alegações de saúde nas embalagens. As políticas de rotulagem de alimentos devem ser melhoradas na Argentina para garantir a proteção da saúde da população inteira contra a publicidade enganosa.

Occurrence of Ahasverus advena (Coleoptera: Silvanidae) in corn grains from the city of Plácido de Castro, state of Acre, Brazil / Ocorrência de Ahasverus advena (Coleoptera: Silvanidae) em grãos de milho provenientes de Plácido de Castro, Acre, Brasil

Ahasverus advena (Coleoptera: Silvanidae) is a secondary pest of stored grains. It is a polyphagic and cosmopolitan species, with little information about its occurrence in the northern region of Brazil. This study was conducted to report the first occurrence of A. advena in corn grains in the city of Plácido de Castro, in the state of Acre, Brazil. In June 2019, the presence of A. advena under development was observed in a mass of corn grains. The identification was made at the species level using the available dichotomous keys. Since this is the first record of A. advena in corn grains in the city of Plácido de Castro, monitoring insects in the mass of corn grains is necessary to prevent the economic damages caused by A. advena to grains.(AU)

Ahasverus advena (Coleoptera: Silvanidae) é uma praga secundária de grãos armazenados. É uma espécie polifágica e cosmopolita, com poucas informações sobre sua ocorrência na região norte do Brasil. Este estudo tem o objetivo de relatar a primeira ocorrência de A. advena em grãos de milho na cidade de Plácido de Castro, Acre, Brasil. Em junho de 2019, observou-se a presença de A. advena desenvolvendo em uma massa de grãos de milho. A identificação foi feita a nível de espécie com a utilização das chaves dicotômicas disponíveis. Como este é o primeiro registro de A. advena em grãos de milho na cidade de Plácido de Castro, o monitoramento dos insetos na massa de grãos de milho é necessário para evitar danos econômicos causados por A. advena nos grãos.(AU)