INFLUENCE OF THE METHOD OF PURIFICATION ON SOME SOLUTION PROPERTIES OF WELAN GUM

被引：14

作者：

LOPES, L

MILAS, M

RINAUDO, M

机构：

[1] CNRS,CTR RECH MACROMOLEC VEGETALES,F-38041 GRENOBLE 9,FRANCE

[2] UNIV FED RIO DE JANEIRO,INST MACROMOLEC,BR-21945970 RIO JANEIRO,BRAZIL

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 1994年 / 16卷 / 05期

关键词：

POLYSACCHARIDE; WELAN GUM; AGGREGATES;

D O I：

10.1016/0141-8130(94)90030-2

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The origin and some consequences of the presence of aggregates and impurities (deriving from the fermentation procedure) on the solution properties of welan gum have been studied. For this purpose, a method of purification was developed for a fermentation welan broth. It was verified that this method is ineffective for the dissociation of aggregates in the commercial product. This demonstrates the irreversible nature of the intermolecular interactions of welan samples isolated by precipitation in the presence of impurities. The purified products were characterized (M(w), [eta], k(H)) and the results were compared to those obtained from commercial samples of welan. The influence of the method of purification on the theological properties was analysed.

引用

页码：253 / 258

页数：6

共 28 条

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