低氧高二氧化碳贮藏环境对马铃薯品质的影响  

Effects of Low Oxygen and High Carbon Dioxide Storage Environment on Potato Quality

作　　者：田甲春[1] 田世龙[1] 李守强[1] 葛霞[1] 李梅[1] 程建新[1] 张辉元[1] TIAN Jiachun;TIAN Shilong;LI Shouqiang;GE Xia;LI Mei;CHENG Jianxin;ZHANG Huiyuan(Agricultural Products Storage and Processing Research Institute,Gansu Academy of Agricultural Sciences,Lanzhou 730070,China)

机构地区：[1]甘肃省农业科学院农产品贮藏加工研究所,甘肃兰州730070

出　　处：《食品科学》2020年第15期275-281,共7页Food Science

基　　金：现代农业产业技术体系建设专项(CARS-09-P26);甘肃省农业科学院农业科技创新专项(2016GAAS30);甘肃省农业科学院创新团队建设项目(2017GAAS31);甘肃省农业科学院科技成果转化项目(2019GAAS-CGZH12);国家自然科学基金地区科学基金项目(31760476)。

摘　　要：为探索低氧高二氧化碳贮藏环境对马铃薯贮藏品质的影响,本实验研究了5%(体积分数,下同)O2+2%CO2、5%O2+4%CO2、5%O2+6%CO2、5%O2+8%CO2及5%O2+10%CO2的气体环境对马铃薯在4℃和10℃贮藏120 d期间主要营养品质、外观品质及生理品质的影响。结果表明:5%O2+2%CO2的贮藏环境可延缓贮藏过程中还原糖含量的上升,并且保持良好的薯皮色度及抑制膜脂过氧化反应,保护膜系统的相对完整性,延缓多酚氧化酶活力的升高,从而延缓马铃薯块茎的衰老;而5%O2+10%CO2的贮藏环境反而会引起还原糖的大量积累,但可明显抑制块茎的发芽。本研究结果可为加工型马铃薯的贮藏提供理论依据。In order to explore the effects of low oxygen and high carbon dioxide storage environment on potato quality,potatoes were stored in controlled atmospheres of 5%O2+2%CO2(CA1),5%O2+4%CO2(CA2),5%O2+6%CO2(CA3),5%O2+8%CO2(CA4)and 5%O2+10%CO2(CA5)at 4 or 10℃for 120 days and changes in the nutritional quality,appearance and physiological quality were determined during the storage period.The results showed that CA1 could delay the increase of reducing sugar content during storage,maintain the original color of potato skins,inhibit the peroxidation of membrane lipids,preserve the relative integrity of the membrane system,and retard the increase of polyphenol oxidase(PPO)activity,thus delaying the aging of potato tubers.On the other hand,CA5 could cause the accumulation a large amount of reducing sugar,and significantly inhibit the germination of potato tubers.This study can provide a theoretical basis for the storage of processed potatoes.

关 键 词：马铃薯 低氧高二氧化碳 贮藏 品质 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]