Affiliation: | (1) Department of Biotechnology, Lund University, P.O. Box 124, 221 00 Lund, Sweden;(2) Biotechnology Research Center, School of Pharmacy, Mashhad, University of Medical Sciences, Mashhad, Iran; |
Abstract: | Bacillus halodurans was cultivated on wheat bran as a solid-state substrate and produced haloduracin, a bacteriocin, at about 245 AU per wheat bran. Supplementation of the bran with Lauria-Bertani broth decreased haloduracin production. However, production was stimulated by addition of Mg2SO4 and K2HPO4. The highest production was achieved at a wheat bran/moisture ratio of 1:1.8 and in the presence of 10% (w/w) Na2CO3. Under optimum conditions, the organism produced about 3,000 AU per gram dry bran. |