Processamento mínimo de vegetais.

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Efeito de fungicidas para controle de mofo branco em sementes de feijão para o controle de Sclerotinia sclerotiorum.

O objetivo deste trabalho foi avaliar diferentes fungicidas utilizados no tratamento de sementes, para controle de S. sclerotiorum em sementes de feijão comum

Irradiação de polpa de cupuaçu (Theobroma grandiflorum).

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Irradiation of camu camu (Myrciaria dúbia) pulp.

The camu camu is a native fruit from Amazonian and it has obtained increasing attention due to its higher content of vitamin. This substance can be lost during the conventional process used for juice pasteurization and concentration. This work aimed to evaluate the irradiation of camu camu pulp regarding the physical, chemical and nutrition quality of the irradiated product. Camu camu from Tomé Açu, Para state - Brazil was used as raw material. The fruits were submitted to the usual steps of the fruit pulp processing: selection, washing and depulping (accomplished in a finisher with a sieve of 0.6 mm). The pulp was conditioned in plastic bags of 500 g and maintained at -18°C until the irradiation. The pulp was irradiated at 0, 500, 750 1000 and 1500 Gray. The irradiated fruits and the non-irradiated control ones were stored under refrigeration at 10ºC during 60 days. Fruits from the experiment were evaluated at the beginning and at each treatment intervals. Five samples were gotten for each characterization. The following analyses were realized: pH, soluble solids contents and titrable acidity, ascorbic acid content, It was verified that there was no significant difference in the physical and chemical properties as well as on the vitamin C content during storage. The irradiation was effective to preserve the quality of camu camu

Food loss and waste.

World food loss and waste can cause about USD 750 billion a year in damage. Post-harvest losses estimates in developing countries vary greatly, reaching up to 50% or more. According to data from the Food and Agriculture Organization of the United Nations (FAO), 54% of losses and waste occur at the initial stage of production – during post-harvest handling and storage, and 46% during processing, distribution, and consumption. Consumers often dispose of food after buying it because they verify that it does not meet their quality requirements, especially regarding appearance and taste. This is why there must be more research on reducing food loss and waste in the world so as to increase food supply, improve production costs, and reduce environmental impacts.Translated by Paulo de Holanda Morais

Orientações quanto ao manuseio pré e pós-colheita de frutas e hortaliças visando a redução de suas perdas.

Com a constatação da existência de elevadas perdas nos processos de produção, distribuição, armazenamento e comercialização de produtos hortifrutícolas, torna-se premente a necessidade da identificação das causas dessas perdas para que se possam oferecer recomendações para a sua redução. A implementação de ações que visem à redução de perdas em toda a cadeia produtiva é, portanto, uma alternativa para elevar a oferta de alimentos, sem aumentar necessariamente a área de produção agrícola. O objetivo desta publicação é sistematizar as informações disponíveis sobre as causas das elevadas perdas de vegetais e relacionar, de forma específica, os principais aspectos a serem observados, bem como as medidas para redução das perdas nos diferentes pontos das cadeias hortifrutícolas.bitstream/item/117513/1/CT-205-finalizado.pd

Use of edible and biodegradable coatings in fresh cut pineapple.

The use of edible coatings in vegetable products has been increasing because it offers several advantages as being biodegradable and extends the shelf-life of fruits and vegetables. The objective of this work was to evaluate the effect of two biodegradable edible coatings, sodiumalginate and Chitosan, on the quality and shelf life of minimally processed pineapple storage at 10°C. Five L of each coating solutions were prepared as following - 2% alginate solution: 100 g of Algenic acid sodium salt in 5 L of distilled water, heated at 70°C under constant stirring - 0,75% Chitosan solution: 150 g of monohydrated citric acid dispersed in 5 L of distilled water and addition 37.5g of Chitosan (Crab shells Chitosan, minimum 85% deacetylated, SIGMA), heated to 60°C to dissolve the Chitosan. The coating solutions were then stored at 5°C before the dipping. The Chitosan coating had an important benefic effect on the microbiological contamination and on the maintenance of the total phenolic content. The high concentration of citric acid in the coating solution contributed to the antimicrobial effect but changed the sensory taste of fresh pineapple. The alginate coating also decreased the contamination of yeasts and molds but its effect was lower than the Chitosan one. Visual aspect of its coating solution can be not well accepted by the consumers. The concentration of alginate must be decreased to avoid the formation of a too thick gel. The Chitosan treatment resulted in the best product at the end of experiment and the most slight decreasing of phenolic compounds during all the experiments

Extrato hidrossolúvel de soja (leite de soja) com sabores de frutas da Amazônia.

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