Characterization of different native american physalis species and evaluation of their processing potential as jelly in combination with brie-type cheese

Abstract Faced with the need for greater knowledge of the different physalis species, the aim of this study was to characterize different Native American physalis species (Physalis peruviana L., Physalis pubescens L., Physalis angulata L., Physalis mínimos L. and Physalis ixocarpa Brot) as to their physicochemical characteristics, bioactive compounds and antioxidant activity. Besides that, in order to increase their use and add even more value to this fruit, we also evaluate the influence of these different species on the physicochemical, rheological and sensory characteristics of physalis jelly. In addition, this study evaluated the sensory acceptance of the combination of physalis jellies obtained from different species with brie-type cheese. The Peruviana, Pubences and Angulata, are highlighted for being the nutritionally richest species, with the highest levels of phenolic compounds, vitamin C and antioxidant. Moreover, they stand out for originating the most widely sensory accepted jellies, either in pure form or in combination with brie-type cheese.

Peach cultivars from tropical regions: characterization and processing potential / Cultivares de pêssego de regiões tropicais: caracterização e potencial de processamento

ABSTRACT: In order to increase the availability to consumers and add even more value to peaches (Prunus persica (L.) Batsch) and to identify which cultivars grown in tropical regions are more suitable for jelly processing, the objective of this study was to characterize and evaluate the influence of different peach cultivars ('Aurora', 'Biuti', 'Bonão', 'Centenário', 'Diamante', 'Douradão', 'Libra', 'Régis' and 'Tropical') cultivated in tropical regions on the physicochemical characteristics, rheological properties and sensory acceptance of the resulting jelly. The evaluated cultivars presented great variability among themselves in relation to the physical and physicochemical characteristics. The jellies elaborated from these cultivars; although, presenting great variability in relation to the physicochemical and rheological parameters, presented similar, high acceptance. All cultivars studied are suitable for processing and can be used for industrialization.

RESUMO: Com o objetivo de aumentar a disponibilidade para os consumidores, agregar ainda mais valor aos pêssegos (Prunus persica (L.) Batsch) e identificar quais cultivares cultivadas em regiões tropicais são mais adequadas para o processamento de geleia, o objetivo deste estudo foi caracterizar e avaliar a influência de diferentes cultivares de pessegueiro ('Aurora', 'Biuti', 'Bonão', 'Centenário', 'Diamante', 'Douradão', 'Libra', 'Régis' e 'Tropical') cultivadas em regiões tropicais nas características físico-químicas, reológicas e sensoriais da geleia resultante. Verificou-se que as cultivares avaliadas apresentaram grande variabilidade entre si em relação às características físicas e físico-químicas. As geleias elaboradas a partir destas cultivares, embora apresentam grande variabilidade em relação aos parâmetros físico-químicos e reológicos, apresentaram alta aceitação. Conclui-se, que todas as cultivares estudadas são indicadas para processamento e podem ser destinadas à industrialização.

Hybrid cultivars of pear in subtropics regions: processing ability in the form of jelly / Cultivares de peras híbridas em regiões subtropicais: aptidão para processamento na forma de geleia

ABSTRACT: The aim of this study was to characterize five different hybrid cultivars pears ('Tenra', 'Centenária', 'Cascatence', 'Primorosa' and 'Seleta') deployed in subtropical regions of Brazil regarding its physicochemical characteristics, bioactive compounds and antioxidant activity, as well as to evaluate the influence of these cultivars on the characteristics physicochemical, rheological properties and sensory acceptance of the obtained jelly, for identifying varieties with higher potential for industrial use. Regardingthe bioactive compounds and antioxidant activity it was observed that 'Seleta' cultivar was characterized by a higher phenolic content (57.68mg GAEs 100g-1), higher antioxidant activity (13.56% of DPPH sequestration and 1.25µM of trolox g -1) and higher content of vitamin C (3.59mg 100g-1). As the acidity, it ranged from 4.09 to 5.81 g of malic acid 100g-1 ('Tenra' and 'Seleta', respectively). Regarding color, the color parameter L* varied from 32.14 to 36.83, a* ranged from 2.87 to 5.20, b* ranged from 16.57 to 20.42, Chroma ranged from 16.67 to 21.02 and °Hue ranged from 74.94 to 80.18. Regarding the texture, the jellies produced from 'Centenária' and 'Tenra' were characterized by having the highest values of hardness (1.21 and 1.23N, respectively), gumminess (0.42 and 0.45, respectively) and chewiness (0.40 and 0.45N, respectively). The jelly obtained from the 'Centenária' still showed the highest adhesiveness (2.27N s-1) and springiness (0.99). Already jellies prepared by 'Cascatence' showed the highest cohesiveness values (0.68). The jellies prepared with different pear cultivars showed good sensory acceptance for all measured properties, with average scores ranging between the hedonic terms "liked slightly" to "liked very much". Cultivars of subtropical pear trees present different physicochemical characteristics, resulting in jellies with different physicochemical characteristics and rheological properties. Processing in the form of jelly is extremely viable due to the good acceptance by consumers of all formulations elaborated.

RESUMO: O objetivo deste estudo foi caracterizar cinco diferentes cultivares híbridas de peras ('Tenra', 'Centenária', 'Cascatence', 'Primorosa' e 'Seleta') implantadas em regiões subtropicais do Brasil quanto as caracteristicas físico-química, compostos bioativos e atividade antioxidante, bem como avaliar a influência destas cultivares sobre as características físico-químicas, propriedades reológicas e aceitação sensorial da geleia obtida, para identificação de cultivares com maior potentcial para a utilização industrial. Com relação aos compostos bioativos e atividade antioxidante, pode-se observar que a cultivar 'Seleta' caracterizou-se pelo maior teor de fenólicos (57,68mg GAEs 100 g-1), maior atividade antioxidante (13,56% de sequestro de DPPH e 1,25μM de trolox g-1) e se destaca devido ao seu maior teor de vitamina C (3,59mg 100g-1). A acidez, variou de 4,09 a 5,81g de ácido málico 100 g-1 ('Tenra' e 'Seleta', respectivamente). Em relação à cor, o parâmetro de cor L* variou de 32,14 a 36,83, a* variou de 2,87 a 5,20, b* variou de 16,67 a 20,42, Chroma variou de 16,57 a 21,02 e °Hue variou de 74,94 a 80,18. Em relação à textura, as geleias produzidas a partir de 'Centenária' e 'Tenra' caracterizam-se por apresentar os maiores valores de dureza (1,21 e 1,23N, respectivamente), gomosidade (0,42 e 0,45N, respectivamente) e mastigabilidade (0,40 e 0,45, respectivamente). A geleia obtida da 'Centenária' ainda apresentava a maior adesividade (2,27N s-1) e a elasticidade (0,99). Já as geleias preparadas com a 'Cascatence' apresentaram os maiores valores de coesividade (0,68). As geleias preparadas com diferentes cultivares de pera mostraram boa aceitação sensorial para todas as propriedades avaliadas, com notas médias variando entre os termos hedônicos "gostei ligeiramente" e "gostei muito". As cultivares de pereiras subtropicais apresentam características físico-químicas diferentes, resultando em geleias com características físico-químicas e propriedades reológicas distintas. O processamento sob a forma de geleia é extremamente viável devido à boa aceitação por parte dos consumidores de todas as formulações elaboradas.

Processing potential of jellies from subtropical loquat cultivars

Abstract To increase the availability to consumers and add more value to loquat (Eriobotrya japonica Lindl.), which is a very perishable and seasonal fruit, and in order to identify which cultivars grown in subtropical regions are more suitable for jelly processing, the objective of this study was to evaluate the influence of different loquat cultivars (Fukuhara, Kurisaki, Mizumo, Mizuho and Mizauto) grown in subtropical regions of Brazil on the physicochemical characteristics, rheological properties and sensory acceptance of the resulting jelly. Based on sensory acceptance the most suitable loquat cultivars for jelly processing are Kurisaki and Mizuho. In this study it was found that the consumer prefers a more acidic, less sweet, less firm or softer loquat jelly, clearer with a more intense red color.