title: A study on four antioxidation effects of lycium barbarum polysaccharides in vitro.
abstract: The objective of the study was to investigate the in vitro antioxidation activity of lycium barbarum polysaccharides (LBP). Ultraviolet spectrophotometry was adopted to determine the capability of LBP to clear superoxide anions, hydroxyl radicals, DPPH free radicals and ABTS free radicals. The result showed that the law for LBP to clear superoxide anions, hydroxyl radicals and DPPH free radicals was that the clearance rate increased gradually with the increase of the concentration, and when the concentration reached a certain value, the clearance rate leveled off, while the IC50 for clearing ABTS free radicals was 47.158 ± 6.231 µg/ml. The study concluded that LBP is a good in vitro antioxidant.
authors: Department of Cardiology, the Fourth Affiliated Hospital of Harbin Medical University, Heilongjiang 150001, China.
authors: Lili
authors: L
authors: Zhang
authors: Department of Cardiology, the Fourth Affiliated Hospital of Harbin Medical University, Heilongjiang 150001, China.
authors: Jinxia
authors: J
authors: Gu
authors: Department of Cardiology, the Fourth Affiliated Hospital of Harbin Medical University, Heilongjiang 150001, China.
authors: Yanjun
authors: Y
authors: Chen
authors: Department of Cardiology, the Fourth Affiliated Hospital of Harbin Medical University, Heilongjiang 150001, China.
authors: Lan
authors: L
authors: Zhang
mesh_terms: D000975:Antioxidants / Q000494:pharmacology*; D052160:Benzothiazoles / Q000378:metabolism; D001713:Biphenyl Compounds / Q000378:metabolism; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D005609:Free Radicals / Q000378:metabolism; D017665:Hydroxyl Radical / Q000378:metabolism; D007202:Indicators and Reagents / Q000378:metabolism; D010084:Oxidation-Reduction / Q000187:drug effects*; D010851:Picrates / Q000378:metabolism; D013056:Spectrophotometry, Ultraviolet; D013451:Sulfonic Acids / Q000378:metabolism; D013481:Superoxides / Q000378:metabolism
chemical_list: D000975:Antioxidants; D052160:Benzothiazoles; D001713:Biphenyl Compounds; D004365:Drugs, Chinese Herbal; D005609:Free Radicals; D007202:Indicators and Reagents; D010851:Picrates; D013451:Sulfonic Acids; C500223:lycium barbarum polysaccharide; D013481:Superoxides; C002502:2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid; D017665:Hydroxyl Radical; C004931:1,1-diphenyl-2-picrylhydrazyl
keywords: ABTS; DPPH; LBP; hydroxyl radical; superoxide anion