Sun, Xueqi1,2,3; Zhang, Jingjing1,2,3; Mi, Yingqi1,2,3; Miao, Qin1,2,3; Tan, Wenqiang1,2
; Li, Qing1,2; Guo, Zhanyong1,2,3发表期刊JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
2021-09-09
页码12
关键词antioxidant activitycarboxymethyl chitosan derivativesulfonium saltsstructural characteristicssynthesis
DOI10.1007/s00343-021-0352-2
通讯作者Guo, Zhanyong(zhanyongguo@hotmail.com)
英文摘要To improve the solubility and bioactivity of chitosan, a new class of carboxymethyl chitosan derivatives possessing sulfonium salts was successfully designed and synthesized, including Methyl sulfide carboxymethyl chitosan (MCMCS), Ethyl sulfide carboxymethyl chitosan (ECMCS), Propyl sulfide carboxymethyl chitosan (PCMCS), and Butyl sulfide carboxymethyl chitosan (BCMCS). To determine the structure of the new class of the derivatives, methods of the Fourier transform infrared spectroscopy (FT-IR), H-1 nuclear magnetic resonance spectrometer (H-1 NMR), and C-13 nuclear magnetic resonance spectrometer (C-13 NMR) were used. Moreover, the antioxidant activity of the derivatives for three types of free radicals, i.e., hydroxyl radical, superoxide radical, and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical was evaluated in vitro. In addition, the L929 cells were adopted to test the cytotoxicity of chitosan and its derivatives by CCK-8 assay. The class of the carboxymethyl chitosan derivatives showed a strong scavenging ability against the three free radicals at 1.6 mg/mL, with scavenging rate of over 70% and some up to 100%. At this high rate, the overall cell viability in the toxicity test reached more than 80%, indicating that the synthetic derivative had a little cytotoxicity. The results show that the introduction of carboxymethyl group to chitosan increased the water-solubility of chitosan, and the combination of sulfonate ions with different chain lengths further enhanced the antioxidant activity of chitosan. Therefore, the sulfonium-containing carboxymethyl chitosan derivatives had excellent bioactivity with good application prospects in food, biomedicine, and medical fields.
资助机构National Key R&D Program of China; Key Deployment Projects of the Marine Science Research Center of the Chinese Academy of Sciences; Natural Science Foundation of Shandong Province of China
收录类别SCI
语种英语
关键词[WOS]ANTIMICROBIAL ACTIVITY; BIOLOGICAL-ACTIVITIES; SCAVENGING ACTIVITY; ANTIFUNGAL; ALGINATE; MODE; ACID
研究领域[WOS]Marine & Freshwater Biology; Oceanography
WOS记录号WOS:000694620600008
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/29738
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
海岸带生物学与生物资源利用重点实验室_海岸带生物资源高效利用研究与发展中心
通讯作者Guo, Zhanyong作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714Sun, Xueqi,Zhang, Jingjing,Mi, Yingqi,et al. Synthesis, characterization, and antioxidant activity of carboxymethyl chitosan derivatives containing sulfonium salt[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021:12.
APASun, Xueqi.,Zhang, Jingjing.,Mi, Yingqi.,Miao, Qin.,Tan, Wenqiang.,...&Guo, Zhanyong.(2021).Synthesis, characterization, and antioxidant activity of carboxymethyl chitosan derivatives containing sulfonium salt.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,12.
MLASun, Xueqi,et al."Synthesis, characterization, and antioxidant activity of carboxymethyl chitosan derivatives containing sulfonium salt".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2021):12.
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