title: Effect of phthaloylation on radical-scavenging and moisture-preserving activities of polysaccharide from Enteromorpha linza.
abstract: In this study, phthaloyl polysaccharide from Enteromorpha linza (PHEP) has been prepared in a homogeneous process by using 1,2-benzenedicarboxylic anhydride and 4-Dimethylaminopyridine as phthaloyl agent and catalyst, respectively. And then the radical-scavenging and moisture-preserving activities of the samples were investigated. The results of chemical composition and FT-IR analysis showed the phthaloyl modifications of polysaccharide were successful. And moreover, the derivative PHEP showed excellent radical-scavenging and moisture-preserving activities, so this derivative needs to be attention and studied in further.
authors.affiliation: Department of Medicine, Huzhou Teachers College, Huzhou 313000, China. Electronic address: wangxiaomei@hutc.zj.cn.
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Medicine, Huzhou Teachers College, Huzhou 313000, China.
authors.forename: Zhongshan
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Medicine, Huzhou Teachers College, Huzhou 313000, China.
authors.forename: Mingxing
authors.initials: M
authors.lastname: Zhao
authors.affiliation: School of Pharmaceutical and Biological Sciences, Weifang Medical University, Weifang 261053, China.
authors.forename: Huimin
authors.initials: H
authors.lastname: Qi
mesh_terms: D015761:4-Aminopyridine / Q000031:analogs & derivatives / Q000737:chemistry; D016166:Free Radical Scavengers / Q000737:chemistry* / Q000494:pharmacology; D006813:Humidity; D010795:Phthalic Acids / Q000737:chemistry* / Q000494:pharmacology; D010796:Phthalic Anhydrides / Q000737:chemistry; D011134:Polysaccharides / Q000737:chemistry* / Q000494:pharmacology; D017550:Spectroscopy, Fourier Transform Infrared; D044445:Ulva / Q000737:chemistry*
chemical_list: D016166:Free Radical Scavengers; D010795:Phthalic Acids; D010796:Phthalic Anhydrides; D011134:Polysaccharides; D015761:4-Aminopyridine; C003885:4-dimethylaminopyridine; C043103:phthalic anhydride
keywords: Enteromorpha linza; Moisture-preserving; Phthaloylation; Radical-scavenging