中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋生物技术研发中心
Relevance of molecular weight of chitosan-N-2-hydroxypropyl trimethyl ammonium chloride and their antioxidant activities

文献类型：期刊论文

作者Xing, Ronge1; Liu, Song1; Guo, Zhanyong1,2; Yu, Huahua1; Zhong, Zhimei1,2; Ji, Xia1,2; Li, Pengcheng1
刊名EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
出版日期2008-02-01
卷号43期号:2页码:336-340
关键词High Molecular Weight Chitosan-n-2-hydroxypropyl Trimethyl Ammonium Chloride Low Molecular Weight Chitosan-n-2-hydroxypropyl Trimethyl Ammonium Chloride Radical Scavenging Effect Reducing Power Chelating Effect Comparative Relevance
ISSN号0223-5234
DOI10.1016/j.ejmech.2007.03.025
文献子类Article
英文摘要The antioxidant potency of high/low molecular weight quatemary chitosan derivatives was investigated employing various established systems in vitro, such as superoxide (O(2)(center dot-)) and hydroxyl (center dot OH) radicals scavenging, reducing power and iron ion chelating. As expected, we obtained several satisfying results, as follow: firstly, low molecular weight quaternary chitosan had stronger scavenging effect on O(2)(center dot-) and center dot OH than high molecular weight quaternary chitosan. Secondly, the reducing power of low molecular weight quaternary chitosan was more pronounced than that of high molecular weight quaternary chitosan. Thirdly, ferrous ion chelating potency were showed to increase first and decrease afterwards with increasing concentration for two kinds of quaternary chitosans, namely, they have not concentration-dependence. However, the scavenging rate and reducing power of high and low molecular weight quaternary chitosans increased with their increasing conc centrations, and hence were concentration-dependent. (c) 2007 Elsevier Masson SAS. All rights reserved.; The antioxidant potency of high/low molecular weight quatemary chitosan derivatives was investigated employing various established systems in vitro, such as superoxide (O-2(center dot-)) and hydroxyl (center dot OH) radicals scavenging, reducing power and iron ion chelating. As expected, we obtained several satisfying results, as follow: firstly, low molecular weight quaternary chitosan had stronger scavenging effect on O-2(center dot-) and center dot OH than high molecular weight quaternary chitosan. Secondly, the reducing power of low molecular weight quaternary chitosan was more pronounced than that of high molecular weight quaternary chitosan. Thirdly, ferrous ion chelating potency were showed to increase first and decrease afterwards with increasing concentration for two kinds of quaternary chitosans, namely, they have not concentration-dependence. However, the scavenging rate and reducing power of high and low molecular weight quaternary chitosans increased with their increasing conc centrations, and hence were concentration-dependent. (c) 2007 Elsevier Masson SAS. All rights reserved.
学科主题Chemistry, Medicinal
URL标识查看原文
语种英语
WOS记录号WOS:000254031400012
公开日期2010-12-24
源URL[http://ir.qdio.ac.cn/handle/337002/6107]  
专题海洋研究所_海洋生物技术研发中心
海洋研究所_海洋环境工程技术研究发展中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Xing, Ronge,Liu, Song,Guo, Zhanyong,et al. Relevance of molecular weight of chitosan-N-2-hydroxypropyl trimethyl ammonium chloride and their antioxidant activities[J]. EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY,2008,43(2):336-340.
APA Xing, Ronge.,Liu, Song.,Guo, Zhanyong.,Yu, Huahua.,Zhong, Zhimei.,...&Li, Pengcheng.(2008).Relevance of molecular weight of chitosan-N-2-hydroxypropyl trimethyl ammonium chloride and their antioxidant activities.EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY,43(2),336-340.
MLA Xing, Ronge,et al."Relevance of molecular weight of chitosan-N-2-hydroxypropyl trimethyl ammonium chloride and their antioxidant activities".EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY 43.2(2008):336-340.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。