核农学报2017，Vol.31Issue(9)：1767-1774,8.DOI:10.11869/j.issn.100-8551.2017.09.1767
壳聚糖-纳米氧化锌复合涂膜对甜樱桃采后生理和贮藏品质的影响
Influence of Chitosan and Nano-zinc Oxide Composited Coating on Postharvest Quality of Sweet Cherry Fruits During Cold Storage
摘要
Abstract
Experiments were carried out to investigated the combined effect of chitosan-nano-zinc oxide (ZnO) composite coating on the postharvest quality of sweet cherry (Prunus avium L.).Fruits stored at 4℃ were treated with 0.2％,0.5％,or 0.8％ of chitosan coating comprised of 0.1％ nano-ZnO,respectively.The changes of different quality parameters including rotten rate,weight loss rate,total soluble solids,titratable acid,vitamin C (Vc) content,respiration intensity,peroxidase (POD),catalase (CAT),superoxide dismutase (SOD) and malondialdehyde (MDA) during storage were determined.The results showed that coating sweet cherries with a mixture of 0.8％ chitosan and 0.1％ nano-ZnO showed a better postharvest quality than fruits treated only with chitosan (1.0％ chitosan).Specifically,composited chitosan coating treatment could keep titratable acid,total soluble solids and Vc contents at higher levels,reduce rotten rate and weight lose rate.In addition,respiration rate,MDA accumulation,decreasing of CAT were delayed,enzyme activities of POD and SOD were inhibited under composited chitosan coating treatment.It was concluded that the composited chitosan coating,consisting of 0.8％ chitosan and 0.1％ nano-ZnO,showed the best performance in term of maintaining fruit freshness and delaying fruit ripen process.This study will provide a theoretical basis for the application of a modified chitosan based-coating in preservation of sweet cherry fruit.关键词
甜樱桃/壳聚糖/纳米氧化锌/复合涂膜/品质Key words
sweet cherry/chitosan/nano zinc oxide/composited coating/quality引用本文复制引用
陈镠,余婷,王允祥,石玉刚,范丽,王贺..壳聚糖-纳米氧化锌复合涂膜对甜樱桃采后生理和贮藏品质的影响[J].核农学报,2017,31(9):1767-1774,8.基金项目
浙江省教育厅一般科研项目(Y201737463),浙江农林大学暨阳学院2014年人才启动项目(JY2014RC009),浙江省食品科学与工程重中之重一级学科2014年开放基金项目(JYTsp20142101) （Y201737463）
