title: Purification and antioxidant activities of baicalin isolated from the root of huangqin (Scutellaria baicalensis gcorsi).
abstract: Baicalin is a flavonoid from the root of huangqin (Scutellaria baicalensis gcorsi, a kind of Traditional Chinese Medicine and food condiment) with two pro phenolic hydroxyls. In this manuscript, high purity of baicalin (95.5 %) was isolated from the root of huangqin and its antioxidant activities were investigated. The antioxidant properties of baicalin were evaluated by scavenging of the diphenylpicrylhydrazyl radical (DPPH), reducing power, and iron-chelating assays, compared to ascorbic acid and BHT. The results of antioxidant activity showed that the activities of baicalin were significantly better than these of ascorbic acid and BHT, and the linear correlations were good in these three assays.
authors.affiliation: College of Tobacco Science / National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou, 450002 People's Republic of China ; Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, Taiyuan, Shanxi 030001 People's Republic of China.
authors.forename: Liu
authors.initials: L
authors.lastname: Peng-Fei
authors.affiliation: College of Tobacco Science / National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou, 450002 People's Republic of China.
authors.forename: Han
authors.initials: H
authors.lastname: Fu-Gen
authors.affiliation: College of Tobacco Science / National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou, 450002 People's Republic of China.
authors.forename: Duan
authors.initials: D
authors.lastname: Bin-Bin
authors.affiliation: Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, Taiyuan, Shanxi 030001 People's Republic of China.
authors.forename: Deng
authors.initials: D
authors.lastname: Tian-Sheng
authors.affiliation: Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, Taiyuan, Shanxi 030001 People's Republic of China.
authors.forename: Hou
authors.initials: H
authors.lastname: Xiang-Lin
authors.affiliation: College of Tobacco Science / National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou, 450002 People's Republic of China ; Wenhua road 95#, Zhengzhou, Henan province People's Republic of China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Ming-Qin
keywords: Antioxidant activity; Baicalin; Flavonoid; Huangqin; Purification