中国科学院南海海洋研究所机构知识库
Advanced  
SCSIO OpenIR  > 中科院海洋生物资源可持续利用重点实验室  > 期刊论文
学科主题: Chemistry, Applied; Chemistry, Organic; Polymer Science
题名: The influence of the cation of quaternized chitosans on antioxidant activity
作者: Liu, JL ; Sun, HL ; Dong, F ; Xue, QZ ; Wang, G ; Qin, S ; Guo, ZY
通讯作者: qdioqdio@yahoo.com.cn
关键词: Quaternized chitosans ; Antioxidant activity ; Group electronegativity
刊名: CARBOHYDRATE POLYMERS
发表日期: 2009
卷: 78, 期:3, 页:439-443
收录类别: sci
部门归属: [Liu, Jingli; Dong, Fang; Xue, Qinzhao; Wang, Gang; Qin, Song; Guo, Zhanyong] Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China; [Liu, Jingli; Dong, Fang] Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China; [Liu, Jingli; Dong, Fang] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Sun, Huili] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
项目归属: LMB
摘要: Various quaternized chitosans (QCSs) were synthesized according to previous method. Their reducing power and antioxidant potency against hydroxyl radicals ((OH)-O-center dot) and hydrogen peroxide (H2O2) were explored by the established systems in vitro. The QCSs exhibited markedly antioxidant activity, especially TCEDMCS, whose IC50 on hydroxyl radicals was 0.235 mg/mL. They showed 65-80% scavenging effect on hydrogen peroxide at a dose of 0.5 mg/mL. Generally, the antioxidant activity decreased in the order TCEDMCS > TBEDMCS > EDMCS > PDMCS > IBDMCS > Chitosan. Furthermore, the order of their (OH)-O-center dot and H2O2 scavenging activity was consistent with the electronegativity of different substituted groups in the QCSs. The QCSs showed much stronger antioxidant activity than that of chitosan may be due to the positive charge density of the nitrogen atoms in QCSs strengthened by the substituted groups. (C) 2009 Elsevier Ltd. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000269991800010
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5070
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Liu, JL; Sun, HL; Dong, F; Xue, QZ; Wang, G; Qin, S; Guo, ZY.The influence of the cation of quaternized chitosans on antioxidant activity,CARBOHYDRATE POLYMERS,2009,78(3):439-443
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Liu, JL]'s Articles
[Sun, HL]'s Articles
[Dong, F]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Liu, JL]‘s Articles
[Sun, HL]‘s Articles
[Dong, F]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院南海海洋研究所 - Feedback
Powered by CSpace