994 resultados para Sementes - Envelhecimento


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Pós-graduação em Medicina Veterinária - FCAV

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The purpose of the present investigation was to characterize the pitanga seeds on centesimal composition, and also to evaluate its antioxidant potential and fatty acid profile. For obtaining the extract, the dehydrated and ground seeds were treated with ethyl alcohol for 30 minutes, at a proportion of 1:3 of seeds:ethyl alcohol, under continuous agitation at room temperature. Afterwards, the mixture was filtered and the supernatant was placed into a rotoevaporator at 40ºC for determining the extract’s dry matter yield, by direct weighing. According to the results, the seeds of cherry showed high amounts of carbohydrates, and offer relevant content and antioxidant activity of phenolic compounds. In the seed oil, cherry high lighted a higher percentage of unsatured fatty acids, oleic being the main component.

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The aim of this study was to determine the best pre-germination treatments for seeds and the best size container for seedlings growing of coral tree Erythrina mulungu (Mart. ex. Benth). Among the treatments applied to seeds, scarification with sulfuric acid during 10 minutes and cutting stylus in the region opposite to hilum resulted, respectively, in highest values of germination percentage (82.8% and 82.1%) and rates of germination speed (1.15 and 1.71). The biometric variables indicated no effect of container size on leaf area and dry mass plants. At 63 days after sowing, although with Dickson quality score statistically similar (mean 0.26), only plants grown in small and large bags reached the diameter collect close to 5 mm, minimum recommended for field planting. According to the results, for initial development of coral tree, it is recommended pre-seed treatment with sulfuric acid commercial, sowing in plastic bags of 17 x 20 cm, and wait 63 days before planting in the field.

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Brazil processes much of its fruit by producing natural juices, candy preserves, extracts and pulps; however, almost 60% of their total weight derives from peels, leaves and seeds. As a result, the emphasis lies most strongly on the use of waste, especially waste that is not commonly used by the food industry or by consumers. The use of seeds would increase the viable sources of raw materials, lower operating costs of industries and would promote the development of new food products, since they are our main sources of protein, fat, fiber, functional compounds, vitamins and minerals salts. This paper presents alternatives for the use of pumpkin seeds (Cucurbita sp), which are often underutilized or discarded. It also demonstrates the bioactive and anti-nutritional compounds and their health effects.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This article reports the results of a study that aimed at evaluating the effects of aging technique on cachaça samples produced and sold by small farmers in São Paulo State, Brazil. Cachaças, aged and not aged were sent by 10 cachaça producers that take part in the community project and course: São Paulo State Contest of Distillery Cachaça and Production Chain of Cachaça Meeting, organized by the Food and Nutrition Department of Pharmaceutical Sciences University, UNESP/Araraquara, SP, Brazil, in partnership with the Brazilian Service of Support to Micro and Small Enterprise of São Paulo State (SEBRAE-SP) and the Rural Union of Araraquara. The evaluation of the samples was made based on sensory tests conducted in Analysis and Quality Control of Foods and Drinks Laboratory of the Department. The survey results showed significantly higher acceptance average in the aged samples compared with not aged ones. The aging process, which was one of the topics discussed in the course, was considered as an effective way to improve the quality of cachaça, the research also confirmed the importance of the University support to improve the quality of food and drink produced in Brazil.