模拟冷链处理下不同储藏温度对杏果实贮藏期细胞膜脂过氧化及品质的影响  

Effects of simulated cold chain transport on cell membrane lipid peroxidation and quality of apricot fruit during storage

作　　者：巩多蕊 杨莉玲[2] 韩江 杨忠强[2] 刘佳[2] 文钰 朱占江[2] 崔宽波[2] GONG Duorui;YANG Liling;HAN Jiang;YANG Zhongqiang;LIU Jia;WEN Yu;ZHU Zhanjiang;CUI Kuanbo(College of Food and Pharmaceutical Sciences,Xinjiang Agricultural University,Urumqi 830052,China;Research Institute of Agricultural Mechanization,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China)

机构地区：[1]新疆农业大学食品科学与药学学院,乌鲁木齐830052 [2]新疆农业科学院农业机械化研究所,乌鲁木齐830091

出　　处：《新疆农业科学》2023年第9期2198-2207,共10页Xinjiang Agricultural Sciences

基　　金：中央财政林草科技推广示范项目(新[2020]TG10号);新疆维吾尔自治区杏产业技术体系(XJCYTX-03-04)。

摘　　要：【目的】研究近冰温冷链运输处理对采后杏果实贮藏品质及细胞膜脂过氧化的影响。【方法】以新疆赛买提杏为材料,利用振动平台及冷藏库来模拟近冰温冷链运输振动环境,分析杏果实分别在不同运输温度1~2℃(CK_(1))、4~6℃(CK_(2))、近冰温(-1.1~-1.6℃)条件下,振动处理8 h后,贮藏期间品质及细胞膜脂过氧化的变化。【结果】近冰温(-1.1~-1.6℃)运输处理的杏果实较(1~2℃、4~6℃)冷链运输处理的杏果实有效减缓了细胞膜透性增加、丙二醛含量积累和过氧化氢(H_(2)O_(2))含量的增加,及杏果实中多酚氧化酶(PPO)、脂氧合酶(LOX)活性、过氧化氢酶(CAT)活性升高,提高过氧化物酶(POD)活性,延缓了杏果实硬度、抗坏血酸、叶绿素含量下降。【结论】近冰温冷链运输有效减缓了杏果实细胞膜脂的氧化损伤及衰老软化。【Objective】To investigate the effects of near freezing temperature and cold chain transportation on storage quality and cell membrane lipid peroxidation of postharvest apricot fruits.【Methods】Xinjiang'Saimaiti apricot'was used as material,the vibration platform and cold storage were used to simulate the vibration environment of near freezing temperature cold chain transportation.The changes of quality and cell membrane lipid peroxidation of apricot fruits during storage after vibration treatment for 8 hours at different transportation temperatures of 1-2℃(CK_(1)),4-6℃(CK_(2))and near freezing temperature(-1.1--1.6℃)were studied.【Results】The results showed that the near freezing temperature(-1.1--1.6℃)transportation treatment of apricot fruits effectively slowed down the increase of cell membrane permeability,malondialdehyde content accumulation and hydrogen peroxide(H_(2)O_(2))content,as well as the increase of polyphenol oxidase(PPO),Lipoxygenase(LOX)and catalase(CAT)activities and peroxidase(POD)activities,and delayed the decline of hardness,ascorbic acid and chlorophyll content of apricot fruits.【Conclusion】Near freezing temperature cold chain transportation can effectively slow down the oxidative damage,aging and softening of cell membrane lipids in apricot fruits.

关 键 词：杏果实 冷链运输 近冰温贮藏 品质 细胞膜脂过氧化 

分 类 号：S662.2[农业科学—果树学] S37[农业科学—园艺学]