Degradation of sulfated polysaccharides from Enteromorpha prolifera and their antioxidant activities
文献类型：期刊论文
| 作者 | Li, Bing1,2; Liu, Song1; Xing, Ronge1 ; Li, Kecheng1,2; Li, Rongfeng1,2; Qin, Yukun1,2; Wang, Xueqin1,2; Wei, Zhenhua1,2; Li, Pengcheng1
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| 刊名 | CARBOHYDRATE POLYMERS
 |
| 出版日期 | 2013-02-15 |
| 卷号 | 92期号:2页码:1991-1996 |
| ISSN号 | 0144-8617 |
| 关键词 | Enteromorpha prolifera Sulfated polysaccharide Microwave-assistance Molecular weight Antioxidant activity |
| 通讯作者 | Xing, RG |
| 中文摘要 | The effects of degradation on molecular weights (Mws) of polysaccharides from Enteromorpha prolifera were investigated. Microwave-assistance could highly accelerate reaction rate. Six representative sulfated polysaccharides (Mw 446.5, 247.0, 76.1, 19.0, 5.0 and 3.1 KDa) were prepared by a microwave-assistance acid hydrolysis method. Chemical analysis and FT-IR spectrum showed only glycosidic linkages were cleft without breaking significant structural units. Antioxidant activities of representative polysaccharides revealed that all samples showed great inhibitory effects on superoxide radical at a low concentration compared to Vitamin C and samples with high Mws exhibited higher inhibitory effects. On the contrary, samples with low Mws possessed stronger inhibitory effects on hydroxyl radical, IC50 of Mw 3.1 KDa was 0.39 mg/mL. The chelating effect of Mw 3.1 KDa was 77.3% at 5 mg/mL, which was twice more than initial polysaccharide. The study indicated Mw was the most significant factor to influence antioxidant activities of polysaccharides from E. prolifera. (C) 2012 Elsevier Ltd. All rights reserved. |
| 英文摘要 | The effects of degradation on molecular weights (Mws) of polysaccharides from Enteromorpha prolifera were investigated. Microwave-assistance could highly accelerate reaction rate. Six representative sulfated polysaccharides (Mw 446.5, 247.0, 76.1, 19.0, 5.0 and 3.1 KDa) were prepared by a microwave-assistance acid hydrolysis method. Chemical analysis and FT-IR spectrum showed only glycosidic linkages were cleft without breaking significant structural units. Antioxidant activities of representative polysaccharides revealed that all samples showed great inhibitory effects on superoxide radical at a low concentration compared to Vitamin C and samples with high Mws exhibited higher inhibitory effects. On the contrary, samples with low Mws possessed stronger inhibitory effects on hydroxyl radical, IC50 of Mw 3.1 KDa was 0.39 mg/mL. The chelating effect of Mw 3.1 KDa was 77.3% at 5 mg/mL, which was twice more than initial polysaccharide. The study indicated Mw was the most significant factor to influence antioxidant activities of polysaccharides from E. prolifera. (C) 2012 Elsevier Ltd. All rights reserved. |
| 学科主题 | Chemistry ; Polymer Science |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Applied ; Chemistry, Organic ; Polymer Science |
| 研究领域[WOS] | Chemistry ; Polymer Science |
| 关键词[WOS] | DIFFERENT MOLECULAR-WEIGHT ; RADICAL SCAVENGING ACTIVITY ; IN-VITRO ; EXTRACTS ; CHITOSAN ; CHLOROPHYTA ; RELEVANCE ; FUCOIDAN |
| 收录类别 | SCI |
| 原文出处 | 10.1016/j.carbpol.2012.11.088 |
| 语种 | 英语 |
| WOS记录号 | WOS:000315616900135 |
| 公开日期 | 2014-07-17 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/16693]  |
| 专题 | 海洋研究所_海洋生物技术研发中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Bing,Liu, Song,Xing, Ronge,et al. Degradation of sulfated polysaccharides from Enteromorpha prolifera and their antioxidant activities[J]. CARBOHYDRATE POLYMERS,2013,92(2):1991-1996. |
| APA | Li, Bing.,Liu, Song.,Xing, Ronge.,Li, Kecheng.,Li, Rongfeng.,...&Li, Pengcheng.(2013).Degradation of sulfated polysaccharides from Enteromorpha prolifera and their antioxidant activities.CARBOHYDRATE POLYMERS,92(2),1991-1996. |
| MLA | Li, Bing,et al."Degradation of sulfated polysaccharides from Enteromorpha prolifera and their antioxidant activities".CARBOHYDRATE POLYMERS 92.2(2013):1991-1996. |
入库方式： OAI收割
来源：海洋研究所
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