54 strains of lactic acid bacteria were isolated form vermin-compost of Eisenia fetida by SL medium, and the antimicrobial activities of fermentation broth on E. coli were assayed by means of Oxford Cup method with E. coli O157:H7 (EDL933) as the indicator strain. The results showed that six strains had antagonistic effect and four species were identified based on their biochemical characteristics and 16S rDNA sequence: Listeria welshimeri, Pediococcus acidilactici, Lactobacillus brevis and Lactococcus garv...