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Qualidade do melão tipo Galia durante o armazenamento refrigerado.

Quality of 'Galia' type melon during refrigerated storage.

Resumos

Com o propósito de avaliar a qualidade pós-colheita do melão tipo Galia, híbrido Nun 1380, armazenado sob refrigeração (7±1°C, UR= 88±3%) instalou-se um experimento em Lavras-MG com frutos provenientes do Pólo Agrícola Mossoró-Assu-RN. Os frutos fo ram colhidos no estádio de maturação I, selecionados e tratados com prochloraz (300ml.l_1 do produto comercial), secos à temperatura ambiente, embalados e transportados para Lavras-MG, onde foram armazenados à temperatura de 7±1°C e UR de 88±3%. Montou-se um experimento em delineamento inteiramente casualizado com posto de oito tratamentos. Observou-se um aumento na perda de peso durante 35 dias de armazenamento e perda na firmeza da pol pa. Entretanto, não houve associação entre amolecimento de frutos e aumento de pectina solúvel. Não observou-se efeito do período de armazenamento no pH, concordante com a estabilização da acidez total titulável. Os teores de sólidos solúveis totais, açúcares solúveis totais e açúcares não-redutores diminuíram durante o armazenamento, entretanto, o teor de açúcares redutores manteve- se constante. Houve redução nos teores de vitamina C total e cloro fila total. A aparência interna limitou o tempo de vida útil pós-co lheita do melão tipo Galia, híbrido Nun 1380 em 26 dias quando mantido sob refrigeração.

Cucumis melo L.; pós-colheita; refrigeração.


The purpose of this research was to examine the postharvest quality of 'Galia' melon, hybrid Nun 1380, at refrigerated storage (7 ±1°C, RH 88 ±3%). This study was carried out in Lavras-MG with fruits from Polo Agricola Mossoro-Assu-RN. Fruits were harvested at maturation stage II and selected for good external characteristics. Fruits were treated with prochloraz (300ml.f) and dried at room temperature. After packing fruits were transported to Lavras-MG. The experiment was carried out in a complete randomized design with eight treatments (eight storage times: 0, 5, 10,15,20,25,30 and 35 days). Reduction in fruit wheight and flesh firmness were observed during storage period. There was no association between softening of fruits and increasing of soluble pectin. The pH and titratable acidity did not change during storage. Soluble solids content, total sugars and non-reducing sugars decreased significantly (p<0,05) during storage, but reducing sugars content was not affected by the storage period. The contents of total vitamin C and total chlorophyll decreased during storage. The storage period of'Galia' melon was reduced to 26 days. After this period the internal fruit appearance decresed (25 days of storaging - 7±1°C, RH 88 ±3% - plus one day prior to storage).

Cucumis melo L.; post-harvest; refrigeration.


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Datas de Publicação

  • Publicação nesta coleção
    Nov 1998

Histórico

  • Aceito
    1998
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