RESUMO -A mangaba, fruto nativo altamente perecível, apresenta reduzida vida útil pós-colheita. Novas tecnologias de conservação de frutos têm sido desenvolvidas, e o uso de reguladores vegetais tem sido promissor. Este trabalho avaliou a aplicação do regulador de etileno1-MCP em diferentes concentrações (250; 500 e 1.000 ηL L -1 ), com o objetivo de verificar o prolongamento da vida útil dos frutos e suas características físicas e químicas durante o armazenamento em temperatura ambiente e a 11°C. O uso 1-MCP, independentemente das três concentrações utilizadas, apresenta grande benefício na conservação pós-colheita dos frutos em condição ambiente, aumentando o período de vida útil da mangaba, assim como o uso de armazenamento a 11°C, os quais favoreceram a redução da perda de massa e a manutenção dos teores de acidez titulável, sólidos solúveis e vitamina C; e quando associado à aplicação de 1-MCP, reduziu os descartes por amadurecimento excessivo. Os frutos apresentaram bom conteúdo de fenóis totais, com incrementos durante o armazenamento, principalmente com uso da concentração de 1.000 ηL L -1 de 1-MCP. Termos para indexação: conservação, fenóis totais,Hancornia speciosa, pós-colheita. 1-MCP ON MANGABA STORED AT AMBIENAL TEMPERATURE AND 11ºCABSTRACT -The mangaba, a highly perishable native fruit, presents reduced shelf-life. New technologies of fruit preserving have been developed and the use of plant growth regulators has been promising. This study evaluated the application of the regulator ethylene 1-MCP at different concentrations (250, 500 and 1000 ηL L -1 ), in order to verify the increase of fruits durability and their physical and chemical characteristics during storage at room temperature and at 11 °C. The use of 1-MCP, at every concentrations used, was beneficial to the fruits post-harvest under natural conditions, increasing the shelf life of mangaba, and so was the use of storage at 11 °C, which favored the reduction of weight loss and the maintenance of the levels of acidity, soluble solids and vitamin C. When associated with the application of 1-MCP, the loss by excessive maturation decreased. The fruits presented a proper content of total phenols, which increased during storage, mainly under the concentration of 1.000 ηL L -1 of 1-MCP.
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