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1-MCP二次处理对番木瓜采后生理生化及贮藏品质的影响
作者: 王俊宁1  邓冬梅1  李洪波1  李艳艳2  
单位: (1 广东海洋大学农学院  广东湛江 524088;2 丹东市五道沟林场  辽宁丹东 118001)  
关键词: 番木瓜  1-MCP二次处理  生理生化  贮藏  
分类号:S668.2
出版年,卷(期):页码:2011 ,42 ( 7 ): 页码:719-723
摘要:

【Objective】The objective of the present study was to investigate the effect of  1-methylcyclopropene (1-MCP) treatment on post-harvest physio-biochemical changes and storage quality of papaya. 【Method】Post-harvest changes in physio-biochemical parameters (membrane permeability, respiration rate, titrable acidity and chlorophyll, protein and vitamin C content), activities of antioxidative enzymes (superoxide dismutase: SOD; peroxidase: POD) and free oxygen radicals (superoxide anion: ■) were investigated during 13 d storage of Risheng papaya treated two times with 1-MCP (1 mg/L) at room temperature. 【Result】The treatment of 1-MCP was found to delay the peak time of respiration rate, inhibit decomposition of chlorophyll, decrease the superoxide anion (■) content and membrane permeability, and increase protein content and antioxidative enzyme activities. However, it also inhibited the increase in titrable acidity and VC content. The effects of second time application of 1-MCP treatment were more pronounced. 【Conclusion】Two times application of 1-MCP (1 mg/L) was found to enhance the post-harvest quality of papaya fruits during its long term storage.

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