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US 6,150,139 AGranted
Bacterocide compositions and their preparation from micrococcus varians
AssigneeNestec S.A.
InventorsBeat Mollet, John Peel, David Pridmore, Nadji Rekhif, Suri Bruno
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Abstract
A bacteriocin having activity against bacteria including Listeria monocytogenes is obtained by culturing cells of a strain of Micrococcus varians, particularly cells of deposited strains CNCM I-1586 and CNCM I-1587, to obtain cultured cells and a supernatant and by separating the supernatant from the cultured cells to obtain the supernatant which contains the bacteriocin which, in turn, may be isolated from the supernatant.
Claims10
A process for preparing a composition having bactericidal activity against bacteria including Listeria monocytogenes comprising:
- culturing cells of a strain of Micrococcus varians selected from the group consisting of strain CNCM I-1586 and strain CNCM I-1587 to obtain cultured cells in a concentration of from 10.sup.7 to 10.sup.11 organisms per ml of the medium and a supernatant comprising the bacteriocin;
- and
- separating the supernatant form the cultured cells to obtain a supernatant composition comprising the bacteriocin.
Dependencies are inferred from the claim text.