Utilisation of Lactococcus lactis subsp. lactis (PY91K) and Lactiplantibacillus plantarum (Y48) to control Clostridium sporogenes during Turkish white cheese production and storage

Abstract

This study investigated the inhibition of Clostridium species, isolated from cheeses with late-blowing defects, by lactic acid bacteria (LAB). Four batches of Turkish white cheeses were produced; control cheese, cheese sample containing Lactococcus lactis subsp. lactis (PY91K) and Lactiplantibacillus plantarum (Y48) as protective cultures (LAB), a cheese sample containing the protective culture and inoculated with Clostridium sporogenes spores (CL-LAB) and finally a cheese sample containing only Cl. sporogenes spores (CL). White cheese's microbiological and physicochemical properties were also determined throughout the 90-day storage period at 4 degrees C. Approximately 1 log reduction in Cl. sporogenes (ZMP-1-4) spores was observed in the LAB co-inoculated Turkish white cheese samples.