核农学报2018，Vol.32Issue(7)：1377-1383,7.DOI:10.11869/j.issn.100-8551.2018.07.1377
短波紫外线处理对紫背天葵采后贮藏品质的影响
Effect of UV-C Treatment on Post-harvest Storage Quality of Gynura bicolor
摘要
Abstract
In order to reduce the post-harvest losses of Gynura bicolor and improve its post-harvest quality,the effect of different levels of short wave ultraviolet (UV-C) irradiation on the post-harvest quality and reactive oxygen species (ROS) metabolism-related enzyme activities of Gynura bicolor were analyzed in this study.The results showed that:UV-C treatment can effectively reduce the weight loss and the total bacterial counts,delay the reduction of visual quality (L* value),vitamin C,chlorophyll,total phenolic and flavonoid contents,and inhibit the accumulation of MDA content.The sensory quality and nutritional quality of G.bicolor were effectively improved by UV-C irradiation treatment,and the activities of ROS metabolism-related enzymes (SOD,POD,CAT) were significantly increased.The effect of 5 kJ·m-2 UV-C irradiation treatment was better than that of 1 or 3 kJ·m-2 treatment groups.Results indicated that the UV-C treatment can effectively improve the post-harvest quality of G.bicolor,and had potential applications for G.bicolor preservation.关键词
紫背天葵/短波紫外线/采后品质/活性氧相关酶Key words
Gynura bicolor/UV-C/post-harvest quality/ROS metabolism-related enzymes引用本文复制引用
施衡乐,吴伟杰,郜海燕,韩延超,陈杭君,刘瑞玲..短波紫外线处理对紫背天葵采后贮藏品质的影响[J].核农学报,2018,32(7):1377-1383,7.基金项目
浙江省重点研发计划项目(2017C02021) （2017C02021）
