บทคัดย่องานวิจัย

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Effect of 1-methylcyclopropene on ripening of Canino apricots and Royal Zee plums.

Dong Li, Lurie, S. and Zhou HongWei

Postharvest Biology and Technology. Volume 24, Issue 2, March 2002, Pages 135-145.

2002

บทคัดย่อ

Effect of 1-methylcyclopropene on ripening of 'Canino' apricots and 'Royal Zee' plums.

'Canino' apricots and 'Royal Zee' plums were treated with 1000 nl l-1 1-methylcyclopropene (1-MCP) at 20 deg C for 20 h following harvest before 0 deg C storage. After 5 days storage for apricots and 10 days for plums and after 30 days storage for both, fruit were moved to 20 deg C for ripening. In addition, apricots were stored for 20 days and then treated with 1-MCP concentrations of 10, 100 and 1000 nl l-1 at removal and held for ripening. Ethylene production and respiration rate, as well as fruit quality of apricots varied with treatment. Ethylene production was efficiently inhibited by 1000 nl l-1 1-MCP in fruit treated after storage but not in fruit treated before storage. Fruit softening was associated with ethylene production and affected by 1-MCP in a concentration dependent manner when treated after storage, while 1-MCP did not affect softening in prestorage treated fruit. The color change of fruit was ethylene-independent and not affected by 1-MCP. Internal flesh browning was decreased by 1-MCP regardless of the concentration when treated after storage, while it was enhanced in fruit treated before storage. Decay development in apricots was decreased by 1-MCP in a concentration dependent manner. Ethylene production and respiration in 'Royal Zee' plums was greatly inhibited by 1-MCP during ripening after both short-term (10 day) and long term (30 day) storage. Parameters associated with ripening processes were decreased significantly by 1-MCP, including softening, color change, and loss of titratable acidity. These data demonstrate that 1-MCP has potential to delay ripening of apricots and plums, but the cultivar, maturity of fruit, and time of application must be chosen carefully. It is suggested that 1-MCP is more efficient for extending the shelf life and improving the quality of 'Canino' apricots directly marketed or after storage, whereas it might be a potent compound for extending both storage period and shelf life of 'Royal Zee' plums.