Cell-wall protein profiles of dairy thermophilic lactobacilli

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