Effects of 1-methylcyclopropene (1-MCP) Treatment on Ripe Stages of Banana Fruit

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  • 1-MCP処理がバナナの追熟期における品質変化に及ぼす影響

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<p>　The eating quality of banana fruit is maintained high for only a short time between the firm‐ripe stage and fully ripe stage. To clarify the efficacy of 1-methylcyclopropene (1-MCP) treatment on maintaining the quality of banana fruit at these stages, we investigated the effects of timing of 1-MCP treatment on fruit quality during ripening. Mature green banana fruit were treated with or without 1-MCP at 1, 2, 3, 4, or 5 days after the start of ethylene treatment (DASE) and stored at 20℃ in the dark. The peel color of banana fruit treated with 1-MCP at 2, 3, 4, and 5 DASE typically turned yellow in a manner similar to that of the control fruit. In fruit treated with 1-MCP at 1 and 2 DASE, the development of brown spots was significantly suppressed. At 6 DASE, there was no difference in flesh firmness between the control fruit and that treated with 1-MCP at 2 DASE, which means that 1-MCP-treated fruit typically softened up to the firm ripe stage. The firmness of 1-MCP-treated fruit was then maintained, while that of the control fruit decreased. There was no difference in the soluble solid content between 1-MCP-treated fruit and the control fruit. The findings revealed that 1-MCP treatment of banana fruit at 2 DASE prolongs the period between the firm-ripe stage and fully ripe stage with no negative impact.</p>

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