Combined effects of 1-MCP and MAP on the fruit quality of pear (Pyrus bretschneideri Reld cv. Laiyang) during cold storage

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• 作者：Fujun Li ; Xinhua Zhang ; Baicheng Song ; Jiazheng Li ; Zhonglin Shang ; Junfeng Guan
• 关键词：MAP ; modified atmosphere packaging ; 1-MCP ; 1-methylcyclopropene ; SOD ; super oxidase dismutase ; POD ; peroxidase ; CAT ; catalase ; LOX ; lipoxygenase ; PAL ; phenylalanine ammonialyase ; PPO ; polyphenol oxidase ; MDA ; malondialdehyde ; SSC ; soluble solids content ; TA ; titratable acidity ; Vc ; vitamin C ; NFP ; normal-film packaging ; MFP ; micro-perforated film packaging
• 刊名：Scientia Horticulturae
• 出版年：17 December, 2013
• 年：2013
• 卷：164
• 期：Complete
• 页码：544-551
• 全文大小：911 K

文摘

To identify the most effective modified-atmosphere packaging (MAP) and/or 1-methylcyclopropene (1-MCP) treatment to maintain the fruit quality of 鈥楲aiyang鈥?pear (Pyrus bretschneideri Reld cv. Laiyang) during 210 days of cold storage (0-2 掳C), two kinds of low-density polyethylene (LDPE) packaging films with different O₂ and CO₂ permeabilities were evaluated with and without 1-MCP (0.5 渭L/L or 1.0 渭L/L). The results showed that 0.5 渭L/L 1-MCP plus micro-perforated film packaging maintained the color, firmness, titratable acidity, and vitamin C content of the fruit flesh and was the most appropriate treatment for 鈥楲aiyang鈥?pear fruit during cold storage. Treatment with 0.5 渭L/L 1-MCP plus micro-perforated film packaging inhibited respiration and ethylene production; maintained the activity levels of super oxidase dismutase, peroxidase, and catalase; decreased the cell-membrane permeability and malondialdehyde content; and inhibited the lipoxygenase and polyphenol oxidase activity of the fruit during cold storage.