生物加工过程Issue(6)：90-95,6.DOI:10.3969/j.issn.1672-3678.2014.06.017
7种广西产甜茶抗氧化活性的比较
Antioxidants of seven types of sweet teas in Guangxi
摘要
Abstract
To compare the primary antioxidant activities of seven sweet teas from Guangxi, we studied primary antioxidant activities of those tea based on four different reaction mechanisms,i.e.,1,1⁃diphenyl⁃2⁃picrylhydrazyl ( DPPH ) radical⁃scavenging activity, ferric⁃reducing antioxidant power ( FRAP ) , ferrous ion⁃chelating ( FIC) and β⁃carotene⁃linoleate bleaching assays. In addition, the total polyphenol content of each sample was estimated by Folin⁃Ciocalteus assay. Results show that the total polyphenol contents of Shilitiancha and Tengcha were higher than the other samples. The DPPH radical scavenging activity of Tengcha was superior to that of Green teas and positive controls Trolox and butylated hydroxytoluene ( BHT ) . The metal chelating capacity of Tianyejucha and Xungou tiancha was exceptionally stronger than that of green teas. Especially, the antioxidant activities of HuangQi and NiuBaiTeng were reported for the first time. The potential application of antioxidant sweet teas needs further to explored.关键词
抗氧化活性/茶科属茶叶/总多酚/二苯代苦味酰基Key words
antioxidants activities/Camellia sinensis/total polyphenol/1,1-diphenyl-2-picrylhydrazyl分类
医药卫生引用本文复制引用
潘慧敏,王婉莹,许利嘉,肖培根..7种广西产甜茶抗氧化活性的比较[J].生物加工过程,2014,(6):90-95,6.基金项目
国家自然科学基金面上项目 （）
