紫外分光光度法研究不同摊放时间毛尖茶叶脂氧合酶活性的变化  

Study on Changes of Lipoxygenase Activity of Maojian Tea at Different Spreading Time by UV Spectrophotometry

作　　者：吴桂玲 王万金 杨再梅 王叶 WU Gui-ling;WANG Wan-jin;YANG Zai-mei;WANG Ye(College ofChemistry and Chemical Engineering,Qiannan Normal College for Nationalities,Guizhou Duyun 558000,China)

机构地区：[1]黔南民族师范学院化学化工学院

出　　处：《广州化工》2019年第19期77-79,共3页GuangZhou Chemical Industry

基　　金：2017年度贵州省教育厅青年科技人才成长项目(黔教合KY字[2017]349);2018年度黔南州科技计划项目(黔南科合(2018)12号);2017年黔南民族师范学院校级重点项目(qnsy2017002)

摘　　要：采用紫外分光光度法,以亚油酸钠为反应底物,研究都匀团山、高寨地区不同部位毛尖茶叶在摊放不同的时间时,毛尖茶叶中脂氧合酶酶活性的变化。结果表明:团山毛尖茶叶随着摊放时间的延长,LOX活性都是慢慢降低,而高寨地区的则是先上升后降低,在摊放到第三天时LOX活性有一个最大值。高寨和团山地区毛尖茶成叶的LOX活性比嫩叶高,高寨地区毛尖茶叶LOX活性总体都比团山地区的高。The sodium linoleate was used as reaction substrate to study the changes of lipoxygenase activity of Maojian tea leaves at different times in different parts of Duyun by UV-spectrophotometry. The results showed that the LOX activity of Tuanshan Maojian tea decreased slowly with the extension of the spreading time, while the LOX activity of Maojian tea in Gaozhai area increased first and then decreased, and the LOX activity had a maximum value when it was spread to the third day. The LOX activity of Maojian tea leaves in Gaozhai and Tuanshan area was higher than that in young leaves, and the LOX activity of Maojian tea in Gaozhai area was higher than that in Tuanshan area.

关 键 词：毛尖茶叶 脂氧合酶(LOX) 活性 

分 类 号：S571.1[农业科学—茶叶生产加工]