[In vitro studies on antioxidant and antimicrobial activities of polysaccharide from Lycoris aurea].


Journal Article

OBJECTIVE: To study the preliminary antioxidant and antimicrobial activities of polysaccharide extracted from Lycoris aurea. METHODS: The scavenging activities of the polysaccharide in vitro on superoxide radical (O2-*), hydroxyl radical (*OH), alkyl radical (R*) and hydrogen peroxide (H2O2) were investigated by modified chemical systems. Meanwhile, the antimicrobial activities were tested using paper-discagar diffusion method. RESULTS: In general, the antioxidant activities of the polysaccharide were lower compared with Vc. However, the scavenging effects to *OH and H2O2 were parallel to Vc. Meanwhile, polysaccharide from Lycoris aurea had strong antimicrobial activities against Micrococcus luteus, Bacillus pumilus and Staphylococcus aureus. CONCLUSION: The polysaccharide extracted from L. aurea can scavenge *OH and H2O2 effectively and inhibit Gram-positive bacterias.

Full Text

Duke Authors

Cited Authors

  • Ru, Q-M; Pei, Z-M; Zheng, H-L

Published Date

  • October 2008

Published In

Volume / Issue

  • 31 / 10

Start / End Page

  • 1536 - 1540

PubMed ID

  • 19230410

Pubmed Central ID

  • 19230410

International Standard Serial Number (ISSN)

  • 1001-4454


  • chi