Isolation and properties of a bacteriocin-producing Carnobacterium piscicola isolated from fish
- 1 October 1992
- journal article
- Published by Wiley in Journal of Applied Bacteriology
- Vol. 73 (4), 309-316
- https://doi.org/10.1111/j.1365-2672.1992.tb04982.x
Abstract
A facultative psychrotrophic lactic acid bacterium isolated from fresh fish was identified as Carnobacterium piscicola on the basis of carbohydrate utilization, G + C content and 16S RNA analysis. Its bacteriocin, designated carnocin UI49, is produced during the mid-exponential phase of growth at temperatures between 15 degrees C and 34 degrees C. Carnocin UI49 is active against a large number of closely-related lactic acid bacteria including carnobacteria, lactobacilli, pediococci and lactococci. Furthermore, the bacteriocin has a bactericidic mode of action which results in lysis of sensitive cells. Maximum bactericidal activity is observed at 34 degrees C with a decrease in activity down to 15 degrees C where it is completely abolished.Keywords
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