1994 Volume 58 Issue 11 Pages 2084-2086
A Lactobacillus plantarum strain, LTF154, isolated from a fermented sausage, produces a bacteriocin, designated plantacin 154. Plantacin 154 was stable to heat treatment, and its activity was sensitive to proteolytic enzymes. The molecular mass, as indicated by activity detection after SDS-PAGE, was estimated to be 3.0 kDa or less. A plasmid-curing experiment and transformation analysis indicated that a 9.5-MDa plasmid, pLP1542, may be involved in the production of plantacin 154.
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