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Gluten-free diets are characterized by lower nutritional quality. The use of green plantain flour in gluten-free formulations appears as an alternative to overcome this deficiency, considering that green plantains have a relevant content of bioactive compounds, dietary fiber, including resistant starch. The objective of this work was to evaluate the effect of the addition of native and modified by hydrothermal treatment green plantain whole flours in the form of gluten-free cupcakes. The density, yield, and microstructure of the dough, specific volume (SV), height, crumb analysis, color, texture, and sensory acceptability of the cupcakes were evaluated. Partial replacement (40%) of rice flour by native and modified flours produced darker, redder cupcakes, less yellowish and with less color intensity. Sensory analysis revealed higher acceptance for cupcakes with native and modified flours, compared to the control, for appearance, flavor, texture, aroma, and overall acceptance. The native flour was the most viable option, as the cupcake produced with it showed the best values for hardness and chewiness, without changing elasticity and SV, in addition to superior sensory acceptance than the control and similar to cupcakes with other modified flours. PRACTICAL APPLICATION: Pursuing to meet the market demand for gluten-free products, with the cake being one of the most requested products in this market, and taking in account that green banana, from different cultivars, has gained interest for the production of flours. The production of flour and bakery products is of great interest to the food industry, not only because of its flavor and properties but also due to the economic and sustainable viability of producing whole green plantain flour with the potential for application, promoting diversification and innovation in the gluten-free functional products market.
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Applying heat treatments using an autoclave and hot air sterilization can alter the proximal composition, technofunctional properties, and antinutrient content of Sacha inchi (P. volubilis) oil press cake. The autoclave and hot air treatments significantly reduced antinutrients compared to the control. The samples treated with autoclave and hot air sterilization exhibited a significant decrease in alkaloids, nitrates, tannins, saponins, and trypsin inhibitors compared to the control sample. However, the 20-min autoclave treatment did not significantly reduce the saponin antinutrients. Phytic acid significantly decreased in the 30-min hot air sample and autoclave 20-min/hot air treatments, respectively. On the other hand, the levels of antinutrients oxalate and thiocyanates did not significant difference between the control and hot air treatments. However, the autoclave treatment resulted in a significant reduction in oxalates. The study found that hydrotreatments at temperatures of 121 °C with humid heat - autoclave showed significant differences in protein content compared to the control sample, with content of 37.75 + 0.2 g/100g. Samples treated with an autoclave for 10, 20, and 30 min showed values of protein 53.19 + 0.28, 66.08 + 2.6, and 70.12 + 0.48 g/100g, respectively. Meanwhile, samples treated with dry heat showed significant differences with the sample treated for 10 min having a protein content of 60.21 + 6.80 g/100g. The techno-functional properties analyzed in the study demonstrated a significant decrease in hydrating properties such as water holding capacity (WHC), water retention capacity (WRC), and swelling capacity (SC) due to changes in the solubility of proteins for the two treatments and the oil holding capacity (OHC) property showed a significant increase. Finally, water's presence during hydrothermal treatments significantly reduces antinutrients, providing guidance for analyzing other study variables.
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Bakery products, including biscuits, cakes and breads, generally present a high content of simple sugars of rapid absorption, high fat content and low amount of dietary fiber, which make them highly caloric foods. Although sucrose is a very important ingredient in bakery products for its preservation characteristics and a significant source of energy, there is a growing interest in replacing this sugar with alternative substances, such as high-intensity sweeteners (HIS) that provide sweetness with no or low calories. In Brazil, there is no data on the use of HIS in this class of food. Therefore, the objective of this study was to evaluate the presence of HIS in baked food commercially available in the country and estimate the dietary exposure to these food additives. For that, an analytical method was established for the simultaneous determination of nine HIS in bakery products using ultra-high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS). Sample preparation steps were required based on mechanical kneading for homogenization, hexane extraction of fats, dilution in mobile phase and vortex homogenization, prior to injection into the system. The results obtained during validation showed that coefficients of variation (CV%) for precision were lower than 13.8% and the accuracy was between 91.6% and 109.1%. Aspartame, acesulfame potassium, sodium cyclamate, saccharin, sucralose and steviol glycosides were found in the samples, used alone or in combinations of up five substances. Steviol glycosides were the most found HIS in biscuit samples, while sucralose was the most common sweetener in cake and bread samples. Analysis of product labels revealed only three different claims, .i.e. 'no sugar', 'no added sugar' and 'zero sugar', with the latter being found in 70% of the samples. Exposure to HIS through the consumption of bakery products estimated per eating occasion showed no concerns regarding toxicological risk.
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Exposição Dietética , Edulcorantes , Espectrometria de Massas em Tandem , Edulcorantes/análise , Brasil , Humanos , Exposição Dietética/análise , Cromatografia Líquida de Alta Pressão , Análise de Alimentos , Pão/análiseRESUMO
Mineral extraction of coal in the carboniferous region of southern Santa Catarina (Brazil) plays a significant role in the regional economy. However, this activity has severe environmental impacts, with approximately 65% of the extracted mineral being discarded as a rejected material (deposited in landfills). The identification of the technological potential of these materials, based on the geological aspects of the extraction site and the beneficiation operations applied to obtain coal, provides the opportunity to add value to different residual fractions that can be reused. Thus, waste valorization, the main objective of this work, has recently become a strategy for the application of these minerals in the production of clay ceramics using a systematic approach named CPQvA, which means "classification, potentiality, quantity/viability, and applicability". The use of these materials as secondary mineral sources can avoid the deposition of these materials in industrial landfills and help to reduce the pressure on landfills, which receive an average of four million tons of material annually. In this study, the residual fraction, part of the tailing from coal beneficiation, known as coal fines, was evaluated for formulation valorization in clay ceramics. This residual fraction was classified as non-hazardous (class II-A, non-inert). X-ray fluorescence spectrometry, X-ray diffraction, and thermogravimetric analysis were performed to characterize the moisture content, particle-size distribution, and coal content to be used in the development of different formulations using the residual fraction of coal tailings (ranging from 0 to 40%) that are of technological interest to the sector. Processing parameters, such as firing at different temperatures (750, 800, 850, and 900 °C), were also correlated with these formulations. The results were compared with those of a reference ceramic formulation from the local productive arrangement of Morro da Fumaça (Arranjo Produtivo Local Cerâmica Vermelha de Morro da Fumaça). The various relationships between the materials were characterized in terms of their thermal shrinkage, water absorption, and mechanical resistance. Leaching and solubilization environmental tests revealed that both the industrial standard formulation and formulations with the application of the residual fraction were classified as non-hazardous materials. Thus, the method of using a mining residual fraction in the formulation of clay ceramics proved to be beneficial for the circular economy in the regional mineral sector through productive and environmental gains; the primary mineral resource and energy consumptions and the impacts related to waste generation were reduced. The results of this study can be applied to similar situations in other parts of the world.
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Palm kernel cake (PKC), a byproduct of palm oil extraction, serves an important role in Ecuador's animal feed industry. The emergence of yellow-orange fungal growth in PKC on some cattle farms in Ecuador sparked concerns within the cattle industry regarding a potential mycotoxin-producing fungus on this substrate. Due to the limited availability of analytical chemistry techniques in Ecuador for mycotoxin detection, we chose to isolate and identify the fungus to determine its association with mycotoxin-producing genera. Through molecular identification via ITS region sequencing, we identified the yellow-orange fungus as the yeast Candida ethanolica. Furthermore, we isolated two other fungi-the yeast Pichia kudriavzevii, and the fungus Geotrichum candidum. Molecular identification confirmed that all three species are not classified as mycotoxin-producing fungi but in contrast, the literature indicates that all three have demonstrated antifungal activity against Aspergillus and Penicillium species, genera associated with mycotoxin production. This suggests their potential use in biocontrol to counter the colonization of harmful fungi. We discuss preventive measures against the fungal invasion of PKC and emphasize the importance of promptly identifying fungi on this substrate. Rapid recognition of mycotoxin-producing and pathogenic genera holds the promise of mitigating cattle intoxication and the dissemination of mycotoxins throughout the food chain.
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The objective was to characterize the pastures by grazing cycle, as well as to evaluate the performance of buffaloes in intensive rotational grazing in a silvopastoral system in the eastern Amazon supplemented with agro-industry co-products in order to characterize the grazing cycles, the composition of the fractions, and the carcass yield. Fifteen non-castrated, crossbred water buffaloes (Murrah × Mediterranean) were used. All animals used in the study were clinically healthy and weighed approximately 458 kg. The animals were grazed in a single group, and supplementation (1% of live weight-LW/day) was divided into three treatments: control (control-conventional ingredients); Cocos nucifera coconut cake (Cocos nucifera) (coconut cake-70%); and palm kernel cake (Guinean elaeis) (palm kernel cake-70% palm kernel cake). The chemical composition of the forage is different in each part of the plant, with higher protein values in the leaves (11.40%) and higher acid detergent fiber (ADF) values in the stems (50.03%). Among the ingredients of the supplement, corn has the highest percentage of indigestible protein (35.57%), most of the protein in palm kernel cake is B3 (49.11%), and in Coco, B2 (51.52%). Mombasa grass has a higher percentage of B3 and B2 proteins; the indigestible fraction is lower in the leaves (17.16%). The leaf/stem ratio also varied between grazing cycles, being better in the second cycle (2.11%) and with an overall average of 1.71. Supplement consumption varied between cycles and was higher in the control treatment, with an overall mean of 4.74. There was no difference in daily weight gain and carcass yield, with an average of 1 kg/day and 49.23%, respectively. Therefore, it can be concluded that including supplements based on by-products from the coconut and palm oil agro-industries promotes performance and carcass yields compatible with conventional supplements. Their use reduces production costs, optimizes the utilization of forage mass, enhances the sustainability of the production chain, and, therefore, is recommended.
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We hypothesized that cottonseed cake in confined Nellore young bulls' diet as fiber source, could maintain or improve the nutrient intake, and productive and metabolic parameters. It was evaluated the total replacement of whole plant corn silage (WPCS) by cottonseed cake (CSC) as a source of fiber in the diet. A completely randomized design with two treatments and 12 replications was used. The treatments were two experimental diets containing 300 g/kg of WPCS or CSC as roughage. All animals at 0, 15, 30, 60 and 112 days were weighed to monitor productive performance and nutrient intake. Dry matter intakes, organic matter, neutral detergent fiber, physically effective neutral detergent fiber, crude protein and non-fiber carbohydrates of the WPCS treatment cattle were higher (p < 0.05), and the ethereal extract intake of cattle fed CSC diet was higher. The BW of cattle fed WPCS was higher in the two initial periods of confinement (p < 0.05). Animals from both treatments showed linear growth during the confinement period. There was a fiber source × period interaction for total weight gain (TWG), average daily gain (ADG) and feed efficiency (FE) (p < 0.05), with the lowest in the first 15 days and the highest at 30 days, reflecting a compensatory gain in animals fed with CSC. Bulls fed with CSC showed negative TWG and ADG in the first period (p < 0.05), but recovered in the following periods, surpassing that of the SC treatment in the last two periods. There was negative EF of bulls fed with CSC in the first period (P < 0.05), but in the following periods the CSC diet did not differ from the WPCS diet. The animals fed CSC diet showed a higher concentration of cholesterol and glucose in the blood plasma (p < 0.05). The forage-free diet containing cottonseed cake as a source of fiber replacing corn silage promoted better animal performance.
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Óleo de Sementes de Algodão , Detergentes , Animais , Bovinos , Masculino , Dieta , Ingestão de Alimentos , Ingestão de EnergiaRESUMO
BACKGROUND: Probiotics are viable microorganisms that when administered in adequate amounts confer health benefits to the host. In fish, probiotic administration has improved growth, and immunological parameters. For this reason, it is necessary production of probiotic bacteria, however, commercial culture mediums used for probiotic growth are expensive, so the design of a "low" cost culture medium is necessary. Therefore, this research aimed to produce a potential multistrain probiotic preparation composed of L. lactis A12 and Priestia species isolated from Nile tilapia (Oreochromis niloticus) gut using an agro-industrial by-products-based culture medium. RESULTS: A Box-Behnken design with three factors (whey, molasses, and yeast extract concentration) was used. As the main results, a high concentration of three components enhanced the viability of L. lactis A12, however, viable cell counts of Priestia species were achieved at low molasses concentrations. The Optimal conditions were 1.00% w/v whey, 0.50% w/v molasses, and 1.50% w/v yeast extract. L. lactis A12 and Priestia species viable counts were 9.43 and 6.89 Log10 CFU/mL, respectively. L. lactis A12 concentration was higher (p < 0.05) in the proposed medium compared to commercial broth. CONCLUSIONS: It was possible to produce L. lactis A12 and Priestia species in co-culture conditions. Whey and molasses were suitable components to produce the multistrain preparation. The cost of the proposed culture medium was 77.54% cheaper than the commercial medium. The proposed culture medium could be an alternative to commercial mediums for the production of this multistrain probiotic.
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Probióticos , Soro do Leite , Animais , Técnicas de Cocultura , Proteínas do Soro do Leite , FermentaçãoRESUMO
Plant biomass colonized by macrofungi can contain molecules with bioactive properties with applications to human/animal health. This work aimed to verify antibacterial activities from aqueous extracts from oil seed cakes of Jatropha curcas (JSC) and cottonseed (CSC), fermented by macrofungi for probiotic bacteria cultivation. Coriolopsis sp., Tyromyces sp., Panus lecomtei, and Pleurotus pulmonarius were cultivated in solid and submerged media. The aqueous extract of unfermented JSC was more efficient than glucose for the growth of all probiotic bacteria. Extracts from four macrofungi fermented in CSC favored Lactobacillus acidophilus growth. In solid fermentation, macrofungi extracts cultivated in JSC favored Bifidobacterium lactis growth. All fungi extracts showed more significant growth than carbohydrates among the four probiotic bacteria evaluated. Regarding antimicrobial activities, no fungal extract or bacterial supernatant showed a more significant inhibition halo for enteropathogenic bacteria than ampicillin (control). Extracts from P. lecomtei and Coriolopsis sp. in CSC showed inhibition halos for Salmonella enterica. Supernatants from L. acidophilus, B. lactis, and Lactobacillus rhamnosus resulted in more significant inhibition of Staphylococcus aureus than the control, which indicates possible antimicrobial activity. Unfermented JSC supernatant showed better results for bacterial growth, while supernatants and aqueous extracts from CSC fermentation can be used for probiotic bacteria culture.
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The excessive consumption of plastic packaging and its consequent disposal and accumulation in the environment have aroused the interest of researchers in developing packaging that can cause less harm to nature. In this sense, this article presents research on the addition of antioxidant extracts from pecan nut cake in biodegradable packaging made with a polymeric mixture of gelatin and corn starch. The films produced were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, thickness, mechanical properties, water vapor permeability (WVP), solubility, water contact angle, optical properties, in vitro bioactive activity, and biodegradability. A higher concentration of total phenolic compounds (101.61 mg GAE/g) was found for the condition where alcohol content and extraction time were 65% and 20 min, respectively. Pecan nut cake (PNC( extracts did not influence the film's tensile strength, and elongation at break was tightly increased by adding 10-20% extracts. The film's characterization pointed to more than 67% solubility, and adding PNC extract implied more hydrophilic surfaces (contact angles lower than 65°). Furthermore, the film opacity showed a linear relation with PNC extract concentration, and a higher luminosity (L*) was observed for the film without extract. Furthermore, the antioxidant activity of the films was enhanced with the addition of PNC extracts, and complete biodegradation was observed until the ninth day. Therefore, biodegradable films prepared from a mixture of gelatin starch and enriched with PNC extracts showed excellent mechanical properties and potential as carriers of antioxidant compounds, allowing us to propose their use as active packing.
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A meta-analysis was conducted to evaluate the effects of dietary palm kernel cake inclusion (PKCInclusion) on the nutrient intake and digestibility, as well as on the performance of cattle under grazing and confined systems. Additionally, potential maximum safe levels (MSL) for PKCInclusion were explored for cattle under those systems using a broken-line approach. Overall, 22 studies for 85 treatment means and 747 experimental units were included in the dataset used for the meta-analysis in which, quantitative responses to increasing PKCInclusion levels were fitted using a mixed model, considering the study as a random effect. Additionally, all studies tested a treatment without the inclusion of PKC (PKCInclusion = 0 g/kg DM) in the concentrate and total mixed ration fed to grazing and confined animals, respectively. In grazing animals, intake, and digestibility of dry matter (DM), as well as intake of total digestible nutrient (TDN) and digestibility of crude protein (CP) decreased linearly (P < 0.01) as PKCInclusion increased. Conversely, the intake and digestibility of neutral detergent fiber (NDF) increased linearly (P < 0.01). Additionally, the intake of CP showed a quadratic decreasing pattern (P < 0.01) with the increase in dietary PKCInclusion. In confined animals, intake of DM, CP, NDF, and TDN revealed quadratic patterns (P < 0.01) as PKCInclusion increased. The digestibility of DM, CP, NDF, as well as TDN concentration showed a linear decreasing pattern (P < 0.05) as PKCInclusion increased. For performance, data revealed that average daily gain (ADG) decreased linearly (P < 0.01) in grazing and confined animals with the increase in PKCInclusion. Feed efficiency (FE) decreased linearly (P < 0.01) in grazing animals, whereas it showed a linear increase (P < 0.05) in confined animals. Exploration of the quadratic relationships of intake of DM, CP, NDF, and TDN with PKCInclusion in confined animals revealed MSL values for PKC ranging from 85.56 ± 14.2 to 126.4 ± 14.7 g PKC/kg DM. In grazing animals, exploration of the quadratic relationship of intake of CP with PKCInclusion, revealed an MSL value of 96.23 ± 9.01 g PKC/kg DM. In conclusion, data revealed that the use of PKC in both confined and grazing systems reduces the nutrient utilization and performance of cattle in a dose-dependent manner without a maximum safe level that does not reduce animal performance.
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Ração Animal , Digestão , Bovinos , Animais , Ração Animal/análise , Dieta/veterinária , Ingestão de Alimentos , Nutrientes , Fibras na DietaRESUMO
Background: Apple pomace is a by-product of the fruit juice industry and comprises peel, seed, stem, and pulp tissues. This by-product contains dietary fibers, polyphenols, vitamins, and organic acids that can benefit human health and have a high potential as a dietary source. Baked products are well-known food types to humans and have a key role in feeding people worldwide. Nowadays, enriched products such as bread, cakes, and biscuits are available in stores. Different studies worldwide have been done about applying the by-products of the fruit juice industry in the bakery. Objective: This research aimed to evaluate apple peel (APE) and pulp (APU) powders separately as a partial substitute for wheat flour in cake production. Methods: Apple peel and pulp separately produced as the residual wastes of juicing were dried for 3 hours in oven (60°C). The dried pulp and peel were ground and sieved using a 60 µm mesh. In this research, chemical and physicochemical analyses were performed according to AACC (Approved Methods of the American Association of Cereal Chemists) and standard food analysis methods. Textural characteristic was analyzed by a texture analyzer (Brookfield CT3-10 Kg, US) equipped with an aluminum probe. Results: Different levels of APE and APU powders (10%, 20%, and 30 %) were used to enrich the cakes. The ash content, fat content, water adsorption capacity, and oil absorption capacity of the wheat flour were lower than APU and APE, whereas the moisture content, protein content, bulk density, and pH showed a reverse trend. Adding APU and APP to the cake formula increased total dietary fiber (TDF) from 4.14 % in the control sample to 27.71 % in the sample with 30 % apple peel powder (APE-30). The highest a* colorimetric parameter (redness) in the cake core was 3.82 in the APE-30 sample. The addition of APE and APU significantly increased the hardness, gumminess, and chewiness of the samples (p<0.05). APE-10 samples could improve the nutritional properties of the cakes without significant reduction (p>0.05) in overall acceptance compared to the control sample. Conclusion: The results of this research demonstrated that a partial replacement of the wheat flour with apple pulp and peel significantly increased the dietary fibers, especially insoluble dietary fiber, compared to the control sample. Apple pulp and apple peel powders had the potential for use in cake making as a good source of dietary fibers
Antecedentes: la pulpa de manzana es un subproducto de la industria del jugo de frutas y se compone de tejidos de cáscara, semillas, tallo y pulpa. Este subproducto contiene fibra dietética, polifenoles, vitaminas y ácidos orgánicos que pueden ser beneficiosos para la salud humana y tienen un alto potencial como fuente dietética. Los productos horneados son de tipos de alimentos bien conocidos para los seres humanos y son clave en la alimentación de las personas de todo el mundo. Hoy en día, los productos enriquecidos como pan, pasteles y galletas están disponibles en las tiendas. Se han hecho diferentes estudios en todo el mundo sobre la aplicación del subproducto de la industria del jugo de frutas en la panadería. Objetivo: El propósito de esta investigación fue evaluar los polvos de cáscara de manzana (APE) y pulpa (APU) como sustituto parcial de la harina de trigo en la producción de pasteles. Métodos: Cáscaras de manzana y pulpa producidas por separado como desechos residuales de jugos, se secaron durante 3 horas en el horno (60 °C). La pulpa seca y la cáscara fueron molidas y tamizadas usando una malla de 60 micras. En esta investigación el análisis químico y físico-químico realizado de acuerdo con el AACC (Aprobado Métodos de la Asociación Americana de Químicos del Cereales) y los métodos estándar de análisis de alimentos. La característica textural fue analizada por el analizador de textura (Brookfield CT3-10 Kg, US) equipado con una sonda de aluminio. Resultados: Se utilizaron diferentes niveles de polvos APE y APU (10, 20 and 30 %) para enriquecer los pasteles. La capacidad de absorción de ceniza, grasa, agua y aceite de la harina de trigo fue menor que la APU y APE, mientras que la humedad, la proteína, la densidad a granel y el pH mostraron una tendencia inversa. Además, APU y APE en fórmula de pastel, aumentaron la fibra dietética total (TDF) de 4.14 % en la muestra de control a 27.71 % en la muestra con un 30 % de polvo de pelar de manzana (APE-30). El parámetro más alto a* colorimétrico en núcleo de pastel fue de 3.82 (enrojecimiento) en la muestra APE-30. La adición de APE y APU aumentó significativamente la dureza, gomosidad y masticabilidad de las muestras (p<0.05). Las muestras de APE-10 podrían mejorar las propiedades nutricionales de los pasteles sin reducción significativa (P<0.05) en aceptación general, en comparación con la muestra de control. Conclusión: Los resultados de este estudio demostraron que un reemplazo parcial de la harina de trigo por pulpa de manzana y cáscara aumentó significativamente la fibra dietética especialmente la insoluble, cuando se compara con la muestra de control. La pulpa en polvo y la cáscara de manzana tienen el potencial de uso en la fabricación de pasteles como una buena fuente de fibra dietética.
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Humanos , Fibras na Dieta , MalusRESUMO
This study was carried out to determine the optimal inclusion rate of palm kernel cake (PKC) in diets for lactating goats based on intake, digestibility, feeding behavior, milk production and nitrogen metabolism. Twelve goats were used, eight Saanen and four Anglo Nubian, with a body weight of 46.0 ± 9.4 kg and 105 ± 5 days of lactation, distributed in a 4 × 4 Latin square design in triplicate. The diets were composed of increasing levels of PKC; 0, 80, 160 and 240 g kg−1 of dry matter (DM). The DM, crude protein, neutral detergent fiber and non-fibrous carbohydrates intakes decreased (p < 0.01) with the PKC inclusion. Milk production and milk protein decreased (p = 0.001), and milk production efficiency was not affected (p > 0.05) by the PKC inclusion. The ether extract intake varied quadratically (p < 0.01). Feeding and rumination efficiencies of dry matter and NDF were reduced (p < 0.001). The fat and total solids contents of the milk were influenced quadratically (p < 0.05). Nitrogen excretion (feces and milk), and retained nitrogen decreased (p < 0.001). Moderate use of up to 80 g kg−1 DM of PKC in the diet of lactating goats is recommended since at these levels milk production or body weight are significantly affected.
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Baru, a Brazilian Cerrado native fruit, stands out for its high nutritional value. Considering that reports about its technological potential are scant, this study aimed to add value to the processing chain. For that, ethanol and isopropanol were evaluated in terms of their suitability to solubilize baru nut oil (BNO), extract baru nut cake oil (BNCO), and obtain a protein-rich defatted flour. The BNO solubility in alcohols was adequately described by nonrandom two-liquid (NRTL) parameters, and the highest solubilization capacity was achieved with absolute isopropanol. Alcoholic extraction did not affect the BNCO tocopherol content (80-112 mg/kg oil) or its fatty acid composition. Both protein solubility and thermal stability were negatively affected by solvent hydration, temperature, and contact stages. However, the materials exhibited adequate water and oil absorption capacities (3.5 and 1 g/g sample), as well as improved foaming capacity and stability, confirming their potential for use in several food formulations.
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Dipteryx , 2-Propanol , Etanol , Farinha , Nozes , SolubilidadeRESUMO
Freshwater is a limited resource, which has driven the development of new purification and water-reuse technologies. One promising technology for water treatment is membrane distillation (MD). One of the main problems of MD, and of many desalination technologies, is membrane fouling, which reduces the performance of the membrane. This work presents a mathematical model that aims to predict distillate fluxes in direct-contact MD when fouling occurs as salts are deposited onto the membrane surface, forming an inorganic fouling layer. The mathematical model uses a heat- and mass-transfer formulation for prediction of the distillate flux under steady state conditions, and it is combined with the cake-filtration theory to represent the distillate fluxes after the onset of membrane fouling. Model results agree well with experimental observation of distillate fluxes, both before (~12-14 kg m-2 h-1) and after the onset of membrane fouling, with root-mean-square errors smaller than 1.4 kg m-2 h-1 in all the experiments. These results suggest that the cake-filtration theory can be used to represent water flux decline in MD membranes prone to inorganic fouling. From our experiments and from the modelling exercise, we found that the onset of membrane failure was relatively constant; the precipitation reaction constant is conditioned by the physicochemical interaction between the feed solution and the membrane; and the rate of flux decline after membrane fouling depends on flow conditions as well as on the precipitation compound. However, the proposed model has limitations that must be addressed in future investigations to validate it under a wider range of operating conditions, for membranes composed by other materials and with different feed solutions to address organic, biological, and/or colloidal fouling, which typically occur under real conditions.
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The study was carried out to evaluate the effects of licury cake (LC) inclusion in diets for lactating goats on milk chemical composition and fatty acid profile, and physicochemical composition and sensory attributes of Minas Frescal cheese. Twelve lactating goats were used (eight Saanen and four Anglo Nubian goats, with 35 ± 5 days in lactation and average body weight of 37.93 ± 9.22 kg), distributed in a triplicate 4 × 4 Latin Square design. The increasing levels of LC studied were: 0, 67, 133 and 200 g/kg of dry matter (DM). The analyses were adjusted using orthogonal polynomial contrasts, in which the probability level of 5% was considered. For sensory attributes, principal component analysis was performed. The LC inclusion promoted the reduction in moisture (p = 0.013) and mineral matter (p < 0.001) content in cheese. The ether extract content in cheese showed a quadratic effect (p = 0.021). Lauric acid showed a linear (p = 0.002) increasing effect, and myristic (p < 0.001) and rumenic (p = 0.018) acids showed quadratic effects. The sensory attributes analysis in cheese indicated that the inclusion of 133 and 200 g/kg of LC improve its texture. Flavor was improved with the inclusion of 67 and 133 g/kg. The inclusion of up to 133 g/kg of LC in the diet of lactating goats is recommended because it promotes improvements in flavor and texture of Minas Frescal cheese.
RESUMO
A four-week feeding trial on the simultaneous replacement of 0 to 50% of soybean meal and 0 to 100% of soybean oil on the growth performance, carcass composition and profitability was conducted using 45 randomly chosen one-week-old growing Japanese quail. The five experimental diets were; D0= Diet containing 20% soybean meal and 4% soybean oil (control diet), D1= Diet, where 12.5% of soybean meal and 25% of soybean oil has been replaced by RSC; T2 = Diet, where 25% of soybean meal and 50% of soybean oil has been replaced by RSC; T3 = Diet, where 37.5% of soybean meal and 75% of soybean oil has been replaced by RSC; T4 = Diet, where 50% of soybean meal and 100% of soybean oil has been replaced by RSC. Results demonstrated that in raw rubber seed the proportion of kernel to hull is 64: 36. Proximate components of the boiled and sundried full fat rubber seed kernel (RS) were, moisture = 96.6%, ME = 5305 kcal / kg DM, CP = 17.6%, EE = 51.05%, CF = 8.5%, NFE = 18.25% and Ash = 4.6%. The body weights of the birds at 35 days of age in all dietary treatments were statistically similar. The feed intake of the quail among different dietary groups was varied significantly (p < 0.05) and there was a tendency of decreasing the feed intake at 25% and above inclusion level of RSC. The body weight gain and FCR were also statistically similar in all dietary groups. The feed cost and total production cost /kg BW of quail was also found to become steadily higher (p> 0.05) at higher RSC inclusion level. The muscle development was found to better at lower (%) RSC level, whereas the organs were enlarged at higher RSC inclusion. Results on the majority of the production parameters, and economics and carcass yield parameters suggested that the simultaneous replacement of maximum 50% soybean oil 25% soybean meal by processed RSC might be suggested, particularly, there will be a crisis in the availability of these two ingredients.(AU)
Um ensaio de alimentação de quatro semanas na substituição simultânea de 0 a 50% de farelo de soja e 0 a 100% de óleo de soja no desempenho de crescimento, composição de carcaça e lucratividade foi conduzido usando 45 codornas japonesas em crescimento com uma semana de idade escolhidas aleatoriamente. As cinco dietas experimentais foram: D0 = Dieta contendo 20% de farelo de soja e 4% de óleo de soja (dieta controle); D1 = Dieta, onde 12,5% de farelo de soja e 25% de óleo de soja foram substituídos por RSC; T2 = Dieta, onde 25% do farelo de soja e 50% do óleo de soja foram substituídos por RSC; T3 = Dieta, onde 37,5% do farelo de soja e 75% do óleo de soja foram substituídos por RSC; e T4 = Dieta, onde 50% do farelo de soja e 100% do óleo de soja foram substituídos por RSC. Os resultados demonstraram que em sementes de borracha crua a proporção de kernel para casca é 64: 36. Os componentes próximos do caroço de semente de borracha gordurosa fervida e seca ao sol foram: umidade = 96,6%; EM = 5305 kcal / kg MS; CP = 17,6%; EE = 51,05%; CF = 8,5%; NFE = 18,25%; e Ash = 4,6%. Os pesos corporais das aves aos 35 dias de idade em todos os tratamentos dietéticos foram estatisticamente semelhantes. O consumo de ração das codornas entre os diferentes grupos dietéticos variou significativamente (p < 0,05) e houve uma tendência de diminuição do consumo de ração em 25% e acima do nível de inclusão do RSC. O ganho de peso corporal e a FCR também foram estatisticamente semelhantes em todos os grupos dietéticos. O custo da ração e o custo total de produção / kg de PC de codornas também se tornaram cada vez mais altos (p > 0,05) no nível de inclusão de RSC mais alto. Constatou-se que o desenvolvimento muscular melhorou com o nível de RSC mais baixo (%), enquanto os órgãos aumentaram com a inclusão de RSC mais alta. Os resultados sobre a maioria dos parâmetros de produção e parâmetros econômicos e [...].(AU)
Assuntos
Animais , Coturnix/crescimento & desenvolvimento , Coturnix/fisiologia , Óleo de Soja/administração & dosagem , Dieta/veterináriaRESUMO
A four-week feeding trial on the simultaneous replacement of 0 to 50% of soybean meal and 0 to 100% of soybean oil on the growth performance, carcass composition and profitability was conducted using 45 randomly chosen one-week-old growing Japanese quail. The five experimental diets were; D0= Diet containing 20% soybean meal and 4% soybean oil (control diet), D1= Diet, where 12.5% of soybean meal and 25% of soybean oil has been replaced by RSC; T2 = Diet, where 25% of soybean meal and 50% of soybean oil has been replaced by RSC; T3 = Diet, where 37.5% of soybean meal and 75% of soybean oil has been replaced by RSC; T4 = Diet, where 50% of soybean meal and 100% of soybean oil has been replaced by RSC. Results demonstrated that in raw rubber seed the proportion of kernel to hull is 64: 36. Proximate components of the boiled and sundried full fat rubber seed kernel (RS) were, moisture = 96.6%, ME = 5305 kcal / kg DM, CP = 17.6%, EE = 51.05%, CF = 8.5%, NFE = 18.25% and Ash = 4.6%. The body weights of the birds at 35 days of age in all dietary treatments were statistically similar. The feed intake of the quail among different dietary groups was varied significantly (p 0.05) at higher RSC inclusion level. The muscle development was found to better at lower (%) RSC level, whereas the organs were enlarged at higher RSC inclusion. Results on the majority of the production parameters, and economics and carcass yield parameters suggested that the simultaneous replacement of maximum 50% soybean oil 25% soybean meal by processed RSC might be suggested, particularly, there will be a crisis in the availability of these two ingredients.
Um ensaio de alimentação de quatro semanas na substituição simultânea de 0 a 50% de farelo de soja e 0 a 100% de óleo de soja no desempenho de crescimento, composição de carcaça e lucratividade foi conduzido usando 45 codornas japonesas em crescimento com uma semana de idade escolhidas aleatoriamente. As cinco dietas experimentais foram: D0 = Dieta contendo 20% de farelo de soja e 4% de óleo de soja (dieta controle); D1 = Dieta, onde 12,5% de farelo de soja e 25% de óleo de soja foram substituídos por RSC; T2 = Dieta, onde 25% do farelo de soja e 50% do óleo de soja foram substituídos por RSC; T3 = Dieta, onde 37,5% do farelo de soja e 75% do óleo de soja foram substituídos por RSC; e T4 = Dieta, onde 50% do farelo de soja e 100% do óleo de soja foram substituídos por RSC. Os resultados demonstraram que em sementes de borracha crua a proporção de kernel para casca é 64: 36. Os componentes próximos do caroço de semente de borracha gordurosa fervida e seca ao sol foram: umidade = 96,6%; EM = 5305 kcal / kg MS; CP = 17,6%; EE = 51,05%; CF = 8,5%; NFE = 18,25%; e Ash = 4,6%. Os pesos corporais das aves aos 35 dias de idade em todos os tratamentos dietéticos foram estatisticamente semelhantes. O consumo de ração das codornas entre os diferentes grupos dietéticos variou significativamente (p 0,05) no nível de inclusão de RSC mais alto. Constatou-se que o desenvolvimento muscular melhorou com o nível de RSC mais baixo (%), enquanto os órgãos aumentaram com a inclusão de RSC mais alta. Os resultados sobre a maioria dos parâmetros de produção e parâmetros econômicos e [...].
Assuntos
Animais , Coturnix/crescimento & desenvolvimento , Coturnix/fisiologia , Dieta/veterinária , Óleo de Soja/administração & dosagemRESUMO
Abstract A four-week feeding trial on the simultaneous replacement of 0 to 50% of soybean meal and 0 to 100% of soybean oil on the growth performance, carcass composition and profitability was conducted using 45 randomly chosen one-week-old growing Japanese quail. The five experimental diets were; D0= Diet containing 20% soybean meal and 4% soybean oil (control diet), D1= Diet, where 12.5% of soybean meal and 25% of soybean oil has been replaced by RSC; T2 = Diet, where 25% of soybean meal and 50% of soybean oil has been replaced by RSC; T3 = Diet, where 37.5% of soybean meal and 75% of soybean oil has been replaced by RSC; T4 = Diet, where 50% of soybean meal and 100% of soybean oil has been replaced by RSC. Results demonstrated that in raw rubber seed the proportion of kernel to hull is 64: 36. Proximate components of the boiled and sundried full fat rubber seed kernel (RS) were, moisture = 96.6%, ME = 5305 kcal / kg DM, CP = 17.6%, EE = 51.05%, CF = 8.5%, NFE = 18.25% and Ash = 4.6%. The body weights of the birds at 35 days of age in all dietary treatments were statistically similar. The feed intake of the quail among different dietary groups was varied significantly (p 0.05) and there was a tendency of decreasing the feed intake at 25% and above inclusion level of RSC. The body weight gain and FCR were also statistically similar in all dietary groups. The feed cost and total production cost /kg BW of quail was also found to become steadily higher (p> 0.05) at higher RSC inclusion level. The muscle development was found to better at lower (%) RSC level, whereas the organs were enlarged at higher RSC inclusion. Results on the majority of the production parameters, and economics and carcass yield parameters suggested that the simultaneous replacement of maximum 50% soybean oil 25% soybean meal by processed RSC might be suggested, particularly, there will be a crisis in the availability of these two ingredients.
Resumo Um ensaio de alimentação de quatro semanas na substituição simultânea de 0 a 50% de farelo de soja e 0 a 100% de óleo de soja no desempenho de crescimento, composição de carcaça e lucratividade foi conduzido usando 45 codornas japonesas em crescimento com uma semana de idade escolhidas aleatoriamente. As cinco dietas experimentais foram: D0 = Dieta contendo 20% de farelo de soja e 4% de óleo de soja (dieta controle); D1 = Dieta, onde 12,5% de farelo de soja e 25% de óleo de soja foram substituídos por RSC; T2 = Dieta, onde 25% do farelo de soja e 50% do óleo de soja foram substituídos por RSC; T3 = Dieta, onde 37,5% do farelo de soja e 75% do óleo de soja foram substituídos por RSC; e T4 = Dieta, onde 50% do farelo de soja e 100% do óleo de soja foram substituídos por RSC. Os resultados demonstraram que em sementes de borracha crua a proporção de kernel para casca é 64: 36. Os componentes próximos do caroço de semente de borracha gordurosa fervida e seca ao sol foram: umidade = 96,6%; EM = 5305 kcal / kg MS; CP = 17,6%; EE = 51,05%; CF = 8,5%; NFE = 18,25%; e Ash = 4,6%. Os pesos corporais das aves aos 35 dias de idade em todos os tratamentos dietéticos foram estatisticamente semelhantes. O consumo de ração das codornas entre os diferentes grupos dietéticos variou significativamente (p 0,05) e houve uma tendência de diminuição do consumo de ração em 25% e acima do nível de inclusão do RSC. O ganho de peso corporal e a FCR também foram estatisticamente semelhantes em todos os grupos dietéticos. O custo da ração e o custo total de produção / kg de PC de codornas também se tornaram cada vez mais altos (p > 0,05) no nível de inclusão de RSC mais alto. Constatou-se que o desenvolvimento muscular melhorou com o nível de RSC mais baixo (%), enquanto os órgãos aumentaram com a inclusão de RSC mais alta. Os resultados sobre a maioria dos parâmetros de produção e parâmetros econômicos e de rendimento de carcaça sugeriram que a substituição simultânea de no máximo 50% de óleo de soja e 25% de farelo de soja por RSC processado pode ser sugerida, particularmente, haverá uma crise na disponibilidade desses dois ingredientes.
RESUMO
A four-week feeding trial on the simultaneous replacement of 0 to 50% of soybean meal and 0 to 100% of soybean oil on the growth performance, carcass composition and profitability was conducted using 45 randomly chosen one-week-old growing Japanese quail. The five experimental diets were; D0 = Diet containing 20% soybean meal and 4% soybean oil (control diet), D1 = Diet, where 12.5% of soybean meal and 25% of soybean oil has been replaced by RSC; T2 = Diet, where 25% of soybean meal and 50% of soybean oil has been replaced by RSC; T3 = Diet, where 37.5% of soybean meal and 75% of soybean oil has been replaced by RSC; T4 = Diet, where 50% of soybean meal and 100% of soybean oil has been replaced by RSC. Results demonstrated that in raw rubber seed the proportion of kernel to hull is 64: 36. Proximate components of the boiled and sundried full fat rubber seed kernel (RS) were, moisture = 96.6%, ME = 5305 kcal / kg DM, CP = 17.6%, EE = 51.05%, CF = 8.5%, NFE = 18.25% and Ash = 4.6%. The body weights of the birds at 35 days of age in all dietary treatments were statistically similar. The feed intake of the quail among different dietary groups was varied significantly (p < 0.05) and there was a tendency of decreasing the feed intake at 25% and above inclusion level of RSC. The body weight gain and FCR were also statistically similar in all dietary groups. The feed cost and total production cost /kg BW of quail was also found to become steadily higher (p> 0.05) at higher RSC inclusion level. The muscle development was found to better at lower (%) RSC level, whereas the organs were enlarged at higher RSC inclusion. Results on the majority of the production parameters, and economics and carcass yield parameters suggested that the simultaneous replacement of maximum 50% soybean oil 25% soybean meal by processed RSC might be suggested, particularly, there will be a crisis in the availability of these two ingredients.
Um ensaio de alimentação de quatro semanas na substituição simultânea de 0 a 50% de farelo de soja e 0 a 100% de óleo de soja no desempenho de crescimento, composição de carcaça e lucratividade foi conduzido usando 45 codornas japonesas em crescimento com uma semana de idade escolhidas aleatoriamente. As cinco dietas experimentais foram: D0 = Dieta contendo 20% de farelo de soja e 4% de óleo de soja (dieta controle); D1 = Dieta, onde 12,5% de farelo de soja e 25% de óleo de soja foram substituídos por RSC; T2 = Dieta, onde 25% do farelo de soja e 50% do óleo de soja foram substituídos por RSC; T3 = Dieta, onde 37,5% do farelo de soja e 75% do óleo de soja foram substituídos por RSC; e T4 = Dieta, onde 50% do farelo de soja e 100% do óleo de soja foram substituídos por RSC. Os resultados demonstraram que em sementes de borracha crua a proporção de kernel para casca é 64: 36. Os componentes próximos do caroço de semente de borracha gordurosa fervida e seca ao sol foram: umidade = 96,6%; EM = 5305 kcal / kg MS; CP = 17,6%; EE = 51,05%; CF = 8,5%; NFE = 18,25%; e Ash = 4,6%. Os pesos corporais das aves aos 35 dias de idade em todos os tratamentos dietéticos foram estatisticamente semelhantes. O consumo de ração das codornas entre os diferentes grupos dietéticos variou significativamente (p < 0,05) e houve uma tendência de diminuição do consumo de ração em 25% e acima do nível de inclusão do RSC. O ganho de peso corporal e a FCR também foram estatisticamente semelhantes em todos os grupos dietéticos. O custo da ração e o custo total de produção / kg de PC de codornas também se tornaram cada vez mais altos (p > 0,05) no nível de inclusão de RSC mais alto. Constatou-se que o desenvolvimento muscular melhorou com o nível de RSC mais baixo (%), enquanto os órgãos aumentaram com a inclusão de RSC mais alta. Os resultados sobre a maioria dos parâmetros de produção e parâmetros econômicos e de rendimento de carcaça sugeriram que a substituição simultânea de no máximo 50% de óleo de soja e 25% de farelo de soja por RSC processado pode ser sugerida, particularmente, haverá uma crise na disponibilidade desses dois ingredientes.