title: Antioxidant activity of water-soluble chitosan derivatives.
abstract: Water-soluble chitosan derivatives were prepared by graft copolymerization of maleic acid sodium onto hydroxypropyl chitosan and carboxymethyl chitosan sodium. Their scavenging activities against hydroxyl radical *OH were investigated by chemiluminescence technique. They exhibit IC(50) values ranging from 246 to 498 microg/mL, which should be attributed to their different contents of hydroxyl and amino groups and different substituting groups.
authors: Department of Chemistry, Yuquan Campus, Zhejiang University, 310027, Hangzhou, China.
authors: W
authors: W
authors: Xie
authors: P
authors: P
authors: Xu
authors: Q
authors: Q
authors: Liu
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology*; D002686:Chitin / Q000031:analogs & derivatives / Q000737:chemistry / Q000494:pharmacology*; D048271:Chitosan; D016166:Free Radical Scavengers / Q000737:chemistry / Q000494:pharmacology*; D017665:Hydroxyl Radical; D012995:Solubility; D014867:Water
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers; D014867:Water; D002686:Chitin; D017665:Hydroxyl Radical; D048271:Chitosan