1-MCP结合开孔包装对软枣猕猴桃果实软化的研究  

Softening of Actinidia arguta Fruits by 1-MCP Combined with Open-pore Packaging

作　　者：王金燕 徐嘉 王庆萱 于昕玉 魏宝东[1] 程顺昌[1] 孙阳[2] 李斌[1] WANG Jinyan;XU Jia;WANG Qingxuan;YU Xinyu;WEI Baodong;CHENG Shunchang;SUN Yang;LI Bin(College of Food Science,Shenyang Agricultural University,Shenyang 110866,China;Liaoning Economic Forest Research Institute,Liaoning Dalian 116031,China)

机构地区：[1]沈阳农业大学食品学院,沈阳110866 [2]辽宁省经济林研究所,辽宁大连116031

出　　处：《包装工程》2024年第9期10-16,共7页Packaging Engineering

基　　金：辽宁省教育厅科学研究经费项目(LSNJC202010);辽宁省“揭榜挂帅”科技项目(2021JH1/10400036);辽宁省经济林研究所联合创新项目(2023023)。

摘　　要：目的采后1-甲基环丙烯(1-MCP)处理缓解软枣猕猴桃开孔包装贮藏失水引起的果实软化问题。方法以“龙城二号”软枣猕猴桃为材料,0.5μL/L的1-甲基环丙烯(1-MCP)熏蒸结合开孔包装进行贮藏,探究贮藏期间1-MCP结合开孔包装对软枣猕猴桃果实软化的影响。结果1-MCP处理结合开孔包装与对照相比更有利于保持果实外观,明显抑制了果实中维生素C和总酚的降解;此外,1-MCP处理还延缓了果实硬度的下降,可能是由于抑制了细胞壁降解酶多聚半乳糖醛酸酶(PG)和纤维素酶(CX)的活性,从而推迟了原果胶和纤维素含量的降低,因此延缓了可溶性果胶含量的升高,与对照组相比,货架期延长了4 d。结论1-MCP结合开孔包装贮藏可以保持果实的感观品质,使细胞壁降解进程受到抑制,进而推迟了软枣猕猴桃开孔包装贮藏中轻度失水导致的软化进程,达到了改善果实软化的目的。The work aims to adopt 1-methylcyclopropene(1-MCP)to alleviate the fruit softening caused by water loss of Actinidia arguta stored in open-pore packaging.The Actinidia arguta"Longcheng 2"was fumigated with 0.5 ul/L 1-methylcyclopropene(1-MCP)for 16 h,and then stored in open-pore packaging to investigate the effect of 1-MCP combined with open-pore packaging on the softening of Actinidia arguta during the storage period.1-MCP treatment combined with open-pore packaging was more conducive to maintaining fruit appearance and significantly inhibited the degradation of vitamin C and total phenols in the fruits compared with the control.Moreover,the 1-MCP treatment delayed the decrease in fruit firmness,probably due to the inhibition of the activities of the cell-wall degrading enzymes,polygalacturonase(PG)and cellulase(CX),which delayed the decrease in the content of original pectin and fiber,and thus delayed the increase in soluble pectin content and the increase in shelf-life.Therefore,the increase in soluble pectin content was delayed,and the shelf life was extended by 4 d compared with the control.1-MCP in combination with open-pore packaging preserves the sensory quality of the fruit and inhibits the cell wall degradation process,thus delaying the softening process caused by mild water loss of Actinidia arguta in open-pore packaging,and achieving the purpose of improving the softening of the fruit.

关 键 词：软枣猕猴桃 贮藏 开孔包装 1-甲基环丙烯 软化 

分 类 号：TB485[一般工业技术—包装工程]