A cellulosic exopolysaccharide produced from sugarcane molasses by a Zoogloea sp.

被引：52

作者：

Paterson-Beedle, M

Kennedy, JF

Melo, FAD

Lloyd, LL

Medeiros, V

机构：

[1] Univ Birmingham, Chembiotech Labs, Birmingham Carbohydrate & Protein Technol Grp, Birmingham B15 2SQ, W Midlands, England

[2] Carpina Univ Fed Rural Pernambuco, Estacao Expt Cana Acucar, BR-55810000 Pernambuco, Brazil

来源：

CARBOHYDRATE POLYMERS | 2000年 / 42卷 / 04期

关键词：

exopolysaccharide; Zoogloea sp; (1 -> 4)-beta-D-glucopyranosyl residues;

D O I：

10.1016/S0144-8617(99)00179-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

An extracellular polysaccharide producing bacterium Zoogloea sp. was isolated from an agro-industrial environment in the north-eastern region of Brazil. The extracellular polysaccharide produced from sugarcane molasses was hydrolysed with trifluoroacetic acid (mild and strong conditions) giving 88% of soluble material. The main monosaccharides present in the soluble fraction were glucose (87.6%), xylose (8.6%), mannose (0.8%), ribose (1.7%), galactose (0.1%), arabinose (0.4%) and glucuronic acid (0.8%). Methylation analysis of the polysaccharide showed mainly 2,3,6-tri-O-methylhexitol (74.7%) and 2,3,-di-O-methylhexitol (17.7%). Enzyme hydrolysis of the polysaccharide with a cellulase confirmed the presence of (1 --> 4)-beta-D-glucopyranosyl residues. (C) 2000 Elsevier Science Ltd. ALI rights reserved.

引用

页码：375 / 383

页数：9

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