高压静电场处理对鲜切黄甜竹笋冷藏下品质的影响  

Effects of High-Voltage Electrostatic Field(HVEF)Treatment on the Quality of Fresh-Cut Bamboo Shoots(Acidosasa edulis)During Cold Storage

作　　者：周成敏 杨继 周紫球 翁方荣 郑剑[4] ZHOU Chengmin;YANG Ji;ZHOU Ziqiu;WENG Fangrong;ZHENG Jian(Lishui Institute for Agricultural and Forest Science,Lishui 323000,China;Suichang County Ecological Forestry Development Center,Suichang 323300,China;Suichang County Yufeng Food Company,Suichang 323300,China;School of Agriculture and Food Science,Zhejiang A&F University,Hangzhou 311300,China)

机构地区：[1]浙江省丽水市农林科学研究院,浙江丽水323000 [2]浙江省丽水市遂昌县生态林业发展中心,浙江遂昌323300 [3]浙江省丽水市遂昌县羽峰食品厂,浙江遂昌323300 [4]浙江农林大学农业与食品科学学院,浙江杭州311300

出　　处：《食品工业科技》2021年第23期319-325,共7页Science and Technology of Food Industry

基　　金：丽水市科技局高层次人才项目(2020RC02)。

摘　　要：本实验研究了高压静电场对冷藏鲜切黄甜竹笋品质、木质化和褐变的影响。黄甜竹笋剥壳切段后经高压静电场(600 kV/m)处理120 min,而后于(6±1)℃、80%~85%相对湿度环境下贮藏10 d。结果显示:高压静电场处理显著(P<0.05)抑制了黄甜竹笋基部切面的褐变,显著(P<0.05)延缓了黄甜竹笋的呼吸速率、硬度、纤维素、木质素和H2O2含量的上升,同时也显著(P<0.05)抑制了苯丙氨酸解氨酶(phenylalanine ammonia lyase,PAL)、过氧化物酶(peroxidase, POD)、肉桂醇脱氢酶(cinnamyl alcohol dehydrogenase, CAD)、多酚氧化酶(polyphenol oxidase, PPO)的活性,显著(P<0.05)提高了超氧化物歧化酶(superoxide dismutase, SOD)和过氧化氢酶(catalase, CAT)的活性。结果表明,高压静电场处理能够抑制采后鲜切黄甜竹笋的木质纤维化和褐变,延缓品质劣变。Fresh-cut bamboo shoots(Acidosasa edulis) were subjected to high-voltage electrostatic field(HVEF) treatment at 600 kV/m for 120 mins and then stored at(6±1) ℃ along with 80%~85 % RH for 10 days to investigate the effects of HVEF treatment on the edible quality, lignification and enzymatic browning. The results indicated that HVEF treatment significantly(P<0.05) inhibited wound browning, slowed down the increase of respiratory rate, flesh firmness and accumulation of cellulose and lignin and hydrogen peroxide(H2 O2) content, significantly(P<0.05) decreased the activities of phenylalanine ammonia lyase(PAL), peroxidase(POD), cinnamyl alcohol dehydrogenase(CAD) and polyphenol oxidase(PPO), and also significantly(P<0.05) increased the activities of superoxide dismutase(SOD) and catalase(CAT)during cold storage. It was suggested that HVEF treatment delayed wound browning and lignification in bamboo shoots compared with the control.

关 键 词：竹笋 高压静电场 木质化 褐变 冷藏 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]