김치에서 분리한 유산균의 항균 활성 연구

A survey was conducted on the isolation of lactic acid bacteria with antibacterial activity. Total 500 lactic acid bacteria were isolated from kimchi and their antibacterial activity was tested against bacteria associated with acidification and hygiene of kimchi, including Lactobacillus plantarum, Lactobacillus sakei, Pediococcus pentosaceus, and Escherichia coli using a deferred method. Among them, 15 lactic acid bacteria isolated from kimchi showed antibacterial activity against two or more indicator strains, and they were identified using a 16S rDNA sequence analysis. As a result, seven Lactobacillus sakei, four Lactobacillus plantarum, one Lactobacillus paraplantarum, two Lactobacillus brevis, and one Leuconostoc citreum were identified. These results suggest that those might be used to improve kimchi quality as a potential starter.