Cell-wall protein profiles of dairy thermophilic lactobacilli

Letters in Applied Microbiology
M GattiE Neviani

Abstract

SDS-PAGE fingerprinting of cell-wall proteins extracted from 119 strains belonging to different species of lactic acid bacteria have been compared. The method of extraction and electrophoretic separation utilized in this work was found to be a reliable and rapid way for characterizing thermophilic lactobacilli species and strains. A protein of approximately 50 kDa was found to be characteristic for all the Lact. helveticus strains, and two cell-wall proteins of about 20 and 30 kDa were typical of the species Lact. delbrueckii, but the discrimination between the subspecies lactis and bulgaricus was not possible by the electrophoretic technique used. The other thermophilic species studied in this work presented cell-wall protein patterns that permitted their differentiation from both Lact. helveticus and Lact. delbrueckii.

Citations

Sep 30, 2009·The Journal of Dairy Research·Graciela De AntoniViviana Suárez
Nov 5, 2005·Applied and Environmental Microbiology·Monica GattiErasmo Neviani
Feb 3, 2009·International Journal of Food Microbiology·Stella L LonigroPaola Lavermicocca
Mar 13, 2003·Journal of Applied Microbiology·A CorsettiM Gobbetti
Oct 31, 2008·Journal of Digestive Diseases·Dheeraj MohaniaHariom Yadav
Oct 24, 2007·Microbiology and Immunology·So-Young Kim, Yoshikazu Adachi

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