1000 resultados para Ácido glutâmico Teses
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Ps-graduao em Biopatologia Bucal - ICT
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Ps-graduao em Pesquisa e Desenvolvimento (Biotecnologia Mdica) - FMB
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Ps-graduao em Cincias Biolgicas (Botnica) - IBB
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Ps-graduao em Odontologia Restauradora - ICT
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The aim of this study was to evaluate citric acid application with or without chitosan on the maintenance of the quality of litchi 'Bengal'. It was used litchi on mature maturation stage. After selection, fruits were immersed for one minute on the solution of citric acid and chitosan: [1]Control - without immersion; [2] citric acid 300g L-1, [3] citric acid 300 g L-1 + chitosan 0,3%, [4]citric acid 300 g L-1 + chitosan 0,6%, [5] citric acid 600 g L-1, [6] citric acid 600 g L-1 + chitosan 0,3%, [7] citric acid 600 g L-1 + chitosan 0,6%. Chitosan of low molecular weight and deacetylation degree of 75,58% (Sigma - Aldrich) were used. After immersion, fruits were put to drain the excess of solution. Then, they were stored in cool chamber at 5C, previously sanitized, for 20 days. The experiment was conducted following a completely randomized design, with a factorial scheme composed by seven coating solutions and five sampling dates. Every five days were evaluated: loss of fresh mass of fruits; color; content of anthocyanins and the activity of peel enzymes polyphenoloxidase and peroxidase. It was verified that the solution of citric acid 600 g L-1, associated or not to chitosan, and the combination of chitosan 0,3% to 300 g L-1 of citric acid were the most efficient to maintain the quality of litchi 'Bengal' for 20 days at 5C.
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Ps-graduao em Agronomia (Cincia do Solo) - FCAV
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Ps-graduao em Biologia Geral e Aplicada - IBB
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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
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Fundao de Amparo Pesquisa do Estado de So Paulo (FAPESP)
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Ps-graduao em Medicina Veterinria - FMVZ
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Ps-graduao em Qumica - IQ
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Ps-graduao em Odontologia - FOAR
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Ps-graduao em Qumica - IQ
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Ps-graduao em Agronomia (Proteo de Plantas) - FCA
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Ps-graduao em Odontologia Restauradora - ICT