The influence of the cation of quaternized chitosans on antioxidant activity
Liu, Jingli1,2,3; Sun, Huili4; Dong, Fang1,2,3; Xue, Qinzhao1; Wang, Gang1; Qin, Song1; Guo, Zhanyong1
发表期刊CARBOHYDRATE POLYMERS
ISSN0144-8617
2009-10-15
卷号78期号:3页码:439-443
关键词Quaternized Chitosans Antioxidant Activity Group Electronegativity
产权排序Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev;Chinese Acad Sci, Inst Oceano;Chinese Acad Sci, Grad Sch;Chinese Acad Sci, S China Sea Inst Oceanol
通讯作者Guo, ZY, Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
作者部门生物资源实验室
英文摘要Various quaternized chitosans (QCSs) were synthesized according to previous method. Their reducing power and antioxidant potency against hydroxyl radicals ((center dot)OH) and hydrogen peroxide (H(2)O(2)) were explored by the established systems in vitro. The QCSs exhibited markedly antioxidant activity, especially TCEDMCS, whose IC(50) 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 (center dot)OH and H(2)O(2) 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.
文章类型Article
资助机构key technology research and development programme of Shandong Province [2007GG2QT06020]; Chinese Academy of Sciences
收录类别SCI
语种英语
关键词[WOS]RADICALS SCAVENGING ACTIVITY ; PEROXIDE ; DAMAGE ; TEA
研究领域[WOS]Chemistry ; Polymer Science
WOS记录号WOS:000269991800010
引用统计
被引频次:55[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/3481
专题海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
中国科学院烟台海岸带研究所知识产出
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
4.Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
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GB/T 7714
Liu, Jingli,Sun, Huili,Dong, Fang,et al. The influence of the cation of quaternized chitosans on antioxidant activity[J]. CARBOHYDRATE POLYMERS,2009,78(3):439-443.
APA Liu, Jingli.,Sun, Huili.,Dong, Fang.,Xue, Qinzhao.,Wang, Gang.,...&Guo, Zhanyong.(2009).The influence of the cation of quaternized chitosans on antioxidant activity.CARBOHYDRATE POLYMERS,78(3),439-443.
MLA Liu, Jingli,et al."The influence of the cation of quaternized chitosans on antioxidant activity".CARBOHYDRATE POLYMERS 78.3(2009):439-443.
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