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Characterization of a new acidic heteropolysaccharide produced by a native isolate of Lactobacillus sp. CFR-2180

IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore

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Title Characterization of a new acidic heteropolysaccharide produced by a native isolate of Lactobacillus sp. CFR-2180
 
Creator Mohan, R.
Vijayendra, S. V. N.
 
Subject 04 Fermentation Technology
28 Polysaccharide Chemistry
 
Description Polysaccharides are being used in food and allied industries as texture improving agents, stabilizers, for the preparation of the edible films etc. Plant and seaweed derived polysaccharides suffer lack of assured supply and variations in quality. Microbial exopolysaccharides (EPS) provide a valid alternative. An EPS producing lactic acid bacterium was isolated from cabbage and identified as Lactobacillus sp. CFR-2180. Production of 22 g/L of EPS in 24 h at 30°C was noticed. The EPS had 65% total carbohydrates, 0.7% protein, 10% uronic acid and 2.0% moisture. Analysis by gas chromatography revealed that the EPS is a heteropolysaccharide with the presence of mannose, galactose and glucose in a ratio of 1:7:5, respectively. Gel permeation chromatography and HPLC analysis of the EPS indicated presence of multiple peaks with molecular weight ranging from 1.8 x 104 to 2.5 x 106 Da., confirming the heterogeneity of the EPS. The results of the preliminary characterization of the EPS indicated that it is a new EPS that has not been reported earlier.
 
Publisher Nova Science Publishers
 
Contributor Ito, Ryouichi
Matsuo, Youta
 
Date 2010
 
Type Book Section
NonPeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/10309/1/Mohan%20R-Vijayendra%20SVN-%20Novo%20chapter.2010.pdf
Mohan, R. and Vijayendra, S. V. N. (2010) Characterization of a new acidic heteropolysaccharide produced by a native isolate of Lactobacillus sp. CFR-2180. In: Handbook of Carbohydrate Polymers: Development, properties and applications. Nova Science Publishers, USA, pp. 757-766. ISBN 978-1-60876-367-2