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Efeito do 1-metilciclopropeno em pera 'Rocha' em diferentes estados de maturação armazenadas em atmosfera normal
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Orientador(es)
Resumo(s)
The effect of 1-methylcyclopropene
(1-MCP) treatment on the ripening of ‘Rocha’ pears harvested with different stages of
maturity, during a cold storage period of seven months was evaluated. Twenty four
hours after harvest, the fruits were treated with 300 ppb of 1-MCP for 24 h at 0 ºC. The
fruits were stored under normal atmosphere at 0 ºC and 90-95 % RH. Fruit samples
were removed from storage periodically and pulp firmness, skin colour, soluble solid
content, starch index and titratable acidity were evaluated, immediately and after ashelf-life period of 7 and 15 days at 20 ºC. The results suggested that 1-MCP treatment
delayed the loss of pulp firmness, titratable acidity and colour changes during the cold
storage period. The same effects were noted when the pears were removed from the
chamber and allowed to ripen at 20 ºC. However the efficacy of 1-MCP on the
inhibition of the development of the quality attributes was affected by the stage of
maturity of the pears before the treatment
Descrição
Palavras-chave
pome fruits 1-MCP ripening storage pomóideas amadurecimento conservação