Antioxidative activity of polysaccharide fractions isolated from Lycium barbarum Linnaeus

作者：Lin C L; Wang C C; Chang S C; Inbaraj B Stephen; Chen B H^*

来源：International Journal of Biological Macromolecules, 2009, 45(2): 146-151.

DOI：10.1016/j.ijbiomac.2009.04.014

• Lycium barbarum Linnaeus
• Polysaccharide
• Antioxidative activity

Antioxidant activity of polysaccharide fractions isolated from Lycium barbarum Linnaeus was evaluated. Polysaccharides were extracted with boiling water, followed by precipitating with ethanol, protein hydrolysis, dialysis, and fractionation with a DEAE-Sepharose CL-6B column. A total of 4 fractions, including 1 neutral polysaccharide (LBPN) and 3 acidic polysaccharides were obtained, and compared with crude polysaccharide (CP), crude extract of polysaccharide (CE), deproteinated polysaccharide (DP), and deproteinated and dialyzed polysaccharide (DDP) for antioxidative activity. With the exception of CE and DDP, most polysaccharides were effective in scavenging DPPH and ABTS(center dot)* free radicals, superoxide anion and hydroxyl radical at 1000 mu g/mL.

• 出版日期2009-8-1
• 单位河北医科大学