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Applied and Environmental Microbiology, June 2006, p. 4431-4435, Vol. 72, No. 6
0099-2240/06/$08.00+0     doi:10.1128/AEM.02780-05
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Diversity of Heteropolysaccharide-Producing Lactic Acid Bacterium Strains and Their Biopolymers

Fernanda Mozzi,1,2* Frederik Vaningelgem,2 Elvira María Hébert,1 Roel Van der Meulen,2 María Remedios Foulquié Moreno,2 Graciela Font de Valdez,1 and Luc De Vuyst2

Centro de Referencia para Lactobacilos (CERELA)-CONICET, Chacabuco 145, 4000 San Miguel de Tucumán, Tucumán, Argentina,1 Research Group of Industrial Microbiology, Fermentation Technology and Downstream Processing (IMDO), Department of Applied Biological Sciences and Engineering, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium2

Received 24 November 2005/ Accepted 27 March 2006

Thirty-one lactic acid bacterial strains from different species were evaluated for exopolysaccharide (EPS) production in milk. Thermophilic strains produced more EPS than mesophilic ones, but EPS yields were generally low. Ropiness or capsular polysaccharide formation was strain dependent. Six strains produced high-molecular-mass EPS. Polymers were classified into nine groups on the basis of their monomer composition. EPS from Enterococcus strains were isolated and characterized.

* Corresponding author. Mailing address: Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, 4000 San Miguel de Tucumán, Tucumán, Argentina. Phone: 54 381 4310465. Fax: 54 381 4005600. E-mail: fmozzi{at}cerela.org.ar.

Applied and Environmental Microbiology, June 2006, p. 4431-4435, Vol. 72, No. 6
0099-2240/06/$08.00+0     doi:10.1128/AEM.02780-05
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



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