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Preparation, structure and anticoagulant activity of a low molecular weight fraction produced by mild acid hydrolysis of sulfated rhamnan from Monostroma latissimum.

Abstract：

:A low molecular weight fraction, designated LMWP, was prepared by mild acid hydrolysis of sulfated rhamnan from Monostroma latissimum and purified by anion-exchange and gel-permeation chromatography. Chemical and spectroscopic analyses showed that LMWP was mainly composed of rhamnose, and its molecular weight was about 33.6 kDa. The backbone of LMWP consists of 1,3-linked α-L-rhamnose units with partially sulfate groups at the C-2 position. Approximately 25% of 1,3-linked α-L-rhamnose units is substituted at C-2 by sulfated or non-sulfated 1,3-linked α-L-rhamnose and 1,2-linked α-L-rhamnose units. LMWP effectively prolonged clotting time as evaluated by the activated partial thromboplastin time assay and was a potent thrombin inhibitor mediated by heparin cofactor II. The investigation demonstrated that LMWP is a novel sulfated polysaccharide with anticoagulant activity.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Li H,Mao W,Hou Y,Gao Y,Qi X,Zhao C,Chen Y,Chen Y,Li N,Wang C

doi

10.1016/j.biortech.2012.03.025

subject

Has Abstract

pub_date

2012-06-01 00:00:00

pages

414-8

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(12)00443-9

journal_volume

114

pub_type

杂志文章

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