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学科主题: 物理化学
题名: Isolation and structural characterization of the polysaccharide LRGP1 from Lycium ruthenicum
作者: Peng, Qiang2, 3;  Lv, Xiaopeng1;  Xu, Qingsong2;  Li, Yu2, 3;  Huang, Linjuan1;  Du, Yuguang2
通讯作者: LinjuanHuang ;  杜昱光
关键词: Lycium ruthenicum ;  Polysaccharide ;  Structure ;  Glycoconjugate ;  Arabinogalactan-proteins
刊名: CARBOHYDRATE POLYMERS
发表日期: 2012-09-01
DOI: 10.1016/j.carbpol.2012.04.067
卷: 90, 期:1, 页:95-101
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1805
产权排名: 1,1
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
英文摘要: A novel water-soluble glycoconjugate, designated as Lycium ruthenicum glycoconjugate polysaccharide 1 (LRGP1), was isolated from the fruits of Lycium ruthenicum Murr. The crude polysaccharide was obtained by hot water extraction and purified by ion-exchange and gelfiltration chromatography. Its molecular weight was 56.2 kDa determined by HPGPC (high performance gel permeation chromatography). Monosaccharide composition analysis revealed that it was composed of rhamnose, arabinose, xylose, mannose, glucose, and galactose in a molar ratio of 0.65:10.71:0.33:0.67:1:10.41. The existence of O-type carbohydrate-peptide linkage in LRGP1 was demonstrated by beta-elimination reaction. On the basis of monosaccharide composition, partial acid hydrolysis, methylation analysis and ESI-MS analysis, LRGP1 was characterized as a branched polysaccharide rich in arabinose and galactose with a backbone composed of (1 -> 3)-linked Gal. The branches were composed of (1 -> 5)-linked Ara, (1 -> 2)-linked Ara, (1 -> 6)-linked Gal, (1 -> 3)-linked Gal, (1 -> 4)-linked Gal and (1 -> 2,4)-linked Rha. Arabinose, xylose, mannose, and glucose were located at the terminal of the branches. (C) 2012 Elsevier Ltd. All rights reserved.
关键词[WOS]: CELL-WALL ;  PURIFICATION ;  ARABINOGALACTANS ;  GLYCOPROTEIN ;  POLYMERS ;  BARBARUM ;  PROTEIN
语种: 英语
WOS记录号: WOS:000308267000013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118084
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.NW Univ Xian, Life Sci Coll, Educ Minist, Key Lab Resource Biol & Biotechnol Western China, Xian 710069, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Peng, Qiang,Lv, Xiaopeng,Xu, Qingsong,et al. Isolation and structural characterization of the polysaccharide LRGP1 from Lycium ruthenicum[J]. CARBOHYDRATE POLYMERS,2012,90(1):95-101.
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