Bacteriocin of Lactobacillus plantarum for Control of Bacterial Food Spoilage Agents

摘要

Bacteriocins are antimicrobials produced by bacteria which are generally effective against closely related species. Lactobacillus plantarum MTCC 9503 was used as bacteriocin producer in the present study. Bacteriocin was prepared from different stages of growth of this organismand subjected to well diffusion assay. Lactobacillus plantarum produced 10,000 AU/ml of bacteriocin. Different concentrations of bacteriocin preparation ofL plantarum. were used against bacterial agents of food spoilage name Bacillus, Erwinia and Pseudomonas. Bacillus sp was inhibited at 4000 AU/ml of bacteriocin whereas the other two bacterial strains were inhibited at 5000 AU/ml.