Abstract:In this paper, the culture medium of Lactobacillus plantarum for bacteriocin production was optimized. The results showed that the culture medium had an important effect on germ formation and production of bacteriocin, in which carbon source was significant. Overall, 5% molasses, 0.5% yeast extract, 2% tryptone, 0.4% KH2PO4, 0.1% MgSO4?7H2O, 0.5% CaCO3, 0.05% MnSO4 and 0.3% Tween 80 were the optimal combination of culture medium.