Effects of 1-MCP on Postharvest Physiology of Oblate Peach

Abstract

Abstract: The purpose of the present study was to investigate the effect of 1-methylcyclopropene(1-MCP) on postharvest physiology and quality of oblate peach(Prunus perisica L.). Oblate peach fruit were treated with 0.25μl /L and 1.5μl /L1-MCP at ambient(20~22℃) for 12 hours on the day of harvest. The fruit were then stored at 5℃ to monitor ripening –related changes, such as respiration, firmness, total soluble solids(TSS), titratable acidity ,Vitamin C, PPO, POD, CAT. The results indecated that 1-MCP treatment delayed the decline of fruit titratable acidity content, increased vitamin C accumulation, not affect the change of TSS. The respiration rate and climacteric peak of fruit was inhibited by 1-MCP treatment. The fruits treated with 1-MCP had higher firmness, lower pectase activity. 1-MCP-treatment caused a suppression in POD activity at beginning of storage, an increase in PPO activity at latter. 0.25μl/l1-MCP treatment caused an increase in CAT activity during storage.

CLC Number:

S661.2

Li Xuewen, Han Jiang, Teng Kangning. Effects of 1-MCP on Postharvest Physiology of Oblate Peach[J]. Chinese Agricultural Science Bulletin, 2006, 22(11): 185-185.

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