Avaliação crítica da legislação brasileira de sucos de fruta, com ênfase no suco de fruta pronto para beber

The aim of this work was to critically assess the Brazilian regulations on fruit juices, with emphasis on ready-to-drink fruit juice. According to the Brazilian regulations, bottled fruit juices must follow specific regulations. They should be in accordance with the definition and designation that identify them, with the quality parameters established, and especially, follow the Brazilian food labeling regulations. The Brazilian regulations on bottled fruit juices have some gaps that promote their misunderstanding and marketing of substandard juices. Frequent changes, divergent labeling regulations and inappropriate use of expressions on the label can also lead to misinterpretation. Food regulations need to be clear and updated frequently if they are to be known and followed. Additionally, their wide dissemination should contribute to informed choices when buying.

Avaliação do estresse oxidativo no sangue de consumidores habituais de suco de laranja

Two biomarkers of oxidative stress were evaluated in healthy volunteers treated with daily doses of orange juice that is well known source of vitamin C and citric flavanones, which have been associated with antioxidant, anti-inflammatory and hypolipidemic effects. The antioxidant capacity in the blood serum was evaluated by studying the scavenging of 2,2'-diphenyl-1-picrylhydrazyl (DPPH) free radical, and also lipid peroxidation was evaluated by the thiobarbituric acid reacting substances (TBARS) assay. The results have shown that the regular consumption of orange juice increased 150% and 200% the serum antioxidant capacity for women and men respectively, but it was no significant change in the serum lipid peroxidation. In conclusion, the increase of flavonones and vitamin C in the body due to the regular intake of orange juice expressively improved the antioxidant capacity, but without significant effect on the lipid peroxidation.

Seleção de agentes alternativos ao ágar para propagação de plântulas de Cattleya loddigesii Lindley (Orchidaceae)

The aim of this study was to evaluate the in vitro growth of Cattleya loddigesii in alternative agents to agar with starch and physical matrix with acclimatization of regenerated plants. Protocorms with 90 days after sowing (0.5 cm of length) were subcultured in 1/2 MS culture medium among the treatments consisting of: agar 7 g L-1 (T1, which corresponds the control), agar 3,5 g L-1 with cassava starch 30 g L-1 (T2), cassava starch 60 g L-1 (T3), cotton fiber (T4) and chopped polyurethane foam (T5). Plantlets were retained in these treatments for over 150 days, and at the end of in vitro culture, were analyzed by their biometric data and acclimatized in a greenhouse during 120 days and evaluated the survival and relative growth rate (RGR). The substrate comprising of chopped polyurethane foam (T5) showed greater efficiency for growth in vitro and also increased survival rate, while substrate cassava starch (T3) provided delay for plantlet growth. Therefore, chopped polyurethane foam is recommended because of low cost and suitable characteristics for the propagation of Cattleya loddigesii.

Índice de área foliar e produtividade do tomate sob condições de ambiente protegido

The tomato cultivation in the greenhouse has been expanded in the last years, mainly, in the South and Southeast regions of Brazil, whose purpose is to improve the productivity and the quality of the agricultural products, offering regularity in the production. The present study aimed to determine, along the crop cycle, the relationship between the leaf area index and the productivity, and at the end of the cycle, the components of production of the tomato in the greenhouse. The models were generated through polynomial equations of 1st and 2nd order, having as independent variable the number of days after the transplanting. It was verified that it is possible to determine, in the greenhouse, through mathematical models, the leaf area index of the tomato crop considering the days after the transplanting. Basing on values of leaf area index, the productivity of the crop and the period of the maximum productivity can be determined, aiding the farmers to determine the best sowing and transplanting time of the tomato crop.

La agroindustria de la pasta de tomate para la exportación en Chile

Incluye Bibliografía

Contribuição ao estudo de polifenoloxidase e ascorbato oxidase de polpa de Passiflora edulis (maracujá-amarelo) visando o processamento industrial de suco

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Influência da expectativa do consumidor sobre a aceitação de suco tropical e de cachaça

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Uso do extrato pirolenhoso: Efeito no solo e nas plantas de tomate

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Impacto da tecnologia de alta pressão hidrostática sobre a qualidade do suco de laranja

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Interpretação do consumidor, avaliação da intenção de compra e das características físico-químicas do néctar e do suco de laranja pronto para beber

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de bebida a base de leite de soja acrescida de suco de graviola

Pós-graduação em Alimentos e Nutrição - FCFAR

Avaliação de atividade antioxidante e da resposta glicêmica e insulínica do suco de laranja fresco em comparação ao suco de laranja pasteurizado no soro sanguíneo de indivíduos saudáveis

Pós-graduação em Alimentos e Nutrição - FCFAR

Influência do processamento sobre o perfil sensorial e a atividade antioxidante do suco de laranja

Pós-graduação em Alimentos e Nutrição - FCFAR

Otimização para a obtençao de extrato aquoso de tremoço branco (Lupinus albus L.) adicionado de suco de pitanga

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito do suco de laranja e da glicosil hesperidina sobre o sistema imune inato de camundongos

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)