摘要:In this study, the ability of 150 Lactobacillus strains identified from the samples of sourdough collected from three different cities in Turkey ( Trabzon , Bursa, Ankara ) to produce bacteriocin and antibacterial activities of these strains against different indicator bacteria have been investigated. 21 out of the 150 Lactobacillus strains were found as bacteriocin producers. It has been determined that Lb. alimentarius LMO6 , LMO7 , Lb. plantarum LMO23 , LMO25 and LMO28 , having antibacterial activity against all indicator bacteria (including Gram negative bacteria; E . coli CFAI , S . enterica subsp . enterica serovar . Typhimurium and P . fluorescens ), showed the broadest antibacterial activity spectrum. These strains have also showed maximum inhibition zone against Bacillus subtilis and Bacillus licheniformis which cause rope in breads. Lb. collinoides LMO33 showed the lowest antibacterial activity spectrum against 14 different indicator bacteria.