A soja é considerada alimento de alto valor nutritivo por ser fonte de energia, proteínas, vitaminas, antioxidantes e minerais. Em função da sua riqueza nutricional, o objetivo do presente trabalho foi analisar as características físico-química e sensorial de Extrato Hidrossolúvel de Soja (EHS) obtido por dois métodos de processamento (extração a quente e a frio), bem como determinar a composição centesimal e o valor energético da soja e do okara. O planejamento experimental foi delineado pela produção do EHS em vaca mecânica (tratamento 1-método 1) e em caldeirão de alumínio (tratamento 2-método 2). As análises realizadas para caracterizar o EHS físico-quimicamente foram umidade, proteínas, lipídios, cinzas, carboidratos, fibra bruta (composição centesimal), pH, acidez titulável, sólidos totais, sólidos solúveis, açúcares redutores e açúcares redutores totais. O EHS também foi analisado sensorialmente pelo teste de aceitação (escala hedônica). Para o grão de soja e o okara realizou-se a análise centesimal. A proporção soja:água (1:10) utilizada no processamento foi elevada, como consequência, o EHS obtido pelo método de extração a frio (caldeirão de alumínio) apresentou reduzidas concentrações de proteína quando comparado ao exigido por lei (mínimo de 3%). Os provadores não notaram diferença sensorial entre os métodos utilizados na elaboração do EHS, com exceção do atributo odor que diferiu significativamente. Os provadores demonstraram baixa aceitação ao EHS, por avaliarem a maioria dos atributos com notas em torno de 5, indicando indiferença ao produto.
PALAVRAS-CHAVE:Bebida não alcoólica. Análise físico-química. Composição centesimal; análise sensorial.
The effect of the application of reclaimed water and saline water on physiological parameters in Ocimum basilicum L. plants were studied to evaluate their adaptability to irrigation with saline water, as well as to evaluate the applicability of wastewater as a source for irrigation. Plants of O. basilicum grown under greenhouse conditions were submitted to different irrigation treatments: control (deionized water 3.10-6 dS m −1), deionized water supplemented with 15 mM NaCl (1.70 dS m −1), deionized water supplemented with 30 mM NaCl (2.46 dS m −1) and ozonized reclaimed water (0.709 dS m −1). The results show that reclaimed water did not promote reduction in water potential of leaf. Likewise, growth-related parameters were not affected by the application of this treatment. The analysis of nutrients composition in the vegetal tissues verified a marked effect of the Na + exclusion in the root tissues. It did not happen occurred in the roots with the same proportion as in the foliar tissues. Considering the results, the ozonized reclaimed water (0.709 dS m −1) can be an alternative for irrigation of O. basilicum L., if it is properly managed.
The techniques used for the preservation and processing of foods can interfere with their nutritional and organoleptic quality. The objective of this study was to evaluate the antioxidants of irradiated soybean cultivars and to determine the most suitable method of processing of water-soluble soybean extract (WSE) from their nutritional and sensory characterization. Different soybean cultivars irradiated with doses of 2, 4 and 8 kGy were submitted to biochemical analysis. The WSEs were produced by hot and cold extraction and subjected to physicochemical, biochemical, microbiological and sensory analyses. Phenolic compounds increased in the cultivars irradiated with the dose of 4 kGy or higher. However, flavonoid content, antioxidant capacity and oxidant/antioxidant enzymes remained stable regardless of the irradiation dose, except for SOD of cultivar BRS-213 whose activity was reduced at the dose of 8 kGy. Sensory acceptance was obtained for the WSE produced by hot extraction but not by cold extraction, while the latter exhibited higher protein and lipid content.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.