采后UV-B对葡萄果实中多酚及PAL活性的影响  

Effects of UV-B radiation on the content of polyphenols and the activity of PAL in the postharvest berries of grapevine cv. Cabernet Sauvignon

作　　者：李昌亨[1] 贾杨超 张伟[1] 贾璐婷 纪薇[1] 高美英[1] 温鹏飞[1] 

机构地区：[1]山西农业大学园艺学院,山西太谷030801

出　　处：《中国园艺文摘》2014年第5期10-12,159,共4页Chinese Horticulture Abstracts

基　　金：山西农业大学大学生科技创新项目(No.2012078);国家自然科学基金(No.31372013;30800740);山西农业大学学术骨干培养计划(No.XG201219)

摘　　要：以酿酒葡萄‘赤霞珠(Vitis vinifera L.cv.Cabernet Sauvignon)’果实为试验材料,研究采后不同剂量UV-B对葡萄果实中多酚含量及PAL活性的影响,为人为调控葡萄果实乃至葡萄酒品质提供理论依据。以成熟葡萄果实进行UV-B照射0 min(对照)、15 min、30 min、45 min、60 min、120 min,并随机取样测定果实中总酚、黄烷醇类多酚及PAL活性,结果表明:采后UV-B处理能显著提高葡萄果实苯丙氨酸解氨酶(PAL)活性,诱导采后葡萄果实多酚类物质积累。Taking the harvested berries ofVitis vinifera L. cv. Cabernet Sauvignon as material, the effects of ultraviolet-B （UV-B） on the concentration of total polyphenol, flavanols and the activity of phenylalanine ammonia-lyase （PAL） were studied to provide a theoretical basis for the artificial regulation of quality of grape berry and wine. Harvested grape berries were exposed to UV-B for 0, 15, 30, 45, 60 and 120min respectively, then the concentration of total polyphenol, flavanols and the activity of PAL were determined. The results indicate that UV-B can significant increase PAL activity and induce the accumulation of polyphenol compounds.

关 键 词：UV-B采后照射 不同剂量 总酚 黄烷醇类 PAL 

分 类 号：S663.1[农业科学—果树学]