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KMID : 0903519950380040302
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1995 Volume.38 No. 4 p.302 ~ p.307
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Inhibition of Listeria monocytogenes by Bacteriocin(s) from Lactic Acid Bacteria Isolated from Kimchi
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Abstract
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Four strains of lactic acid bacteria which produced bacteriocins inhibitory to Listeria species were isolated from Kimchi, and were identified as Leuconostoc mesenteroides subsp. mesenteroides (2 strains), Leuconostoc paramesenteraides and Pediocoecus pentosaceus. The bacteriocins produced by the isolates inhibited all of the Listeria monocytogenes strains tested, but L. denigrificans 28 and L. welchimeri 89 were not inhibited by the bacteriocin produced by the Leu. paramesenteroides isolate. The bacteriocin produced by the P. pentosaceus isolate was more inhibitory against sensitive strains and showed broader spectrum of antimicrobiat activity than those produced by other isolates. The bacteriocins produced by Leuconostoc isolates were sensitive to pronase E treatment, but that produced by the P. pentosaceus isolate was not completely inactivated. The bacteriocins produced by all of the isolates were not sensitive to catalase, α-amylase and lysozyme and heat (30 min at 100℃) treatments.
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KEYWORD
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