African Journal of Biotechnology Vol. 5 (10), pp. 833-835, 16 May 2006   

ISSN 1684–5315 © 2006 Academic Journals        

Short Communication

Effect of carbon source on the antimicrobial activity of Corynebacterium kutscheri and Corynebacterium xerosis

Nasser M. El-Banna

Department of Biology, Faculty of Agriculture and Science, Jerash Private University, Jerash, Jordan E-mail : nasserelbanna@yahoo.com

Accepted 2 January, 2006

Abstract

In an attempt to screen out new potent antimicrobial substances producing bacteria, Corynebacterium kutscheri NB-1 and Corynebacterium xerosis NB-2 were isolated and were found antagonistic to bacteria and fungi. Antimicrobial substances production of the bacterial strains was greatly influenced by variation of carbon sources. Galactose and glucose strongly enhanced the antimicrobial activity of Corynebacterium kutscheri and Corynebacterium xerosis, respectively. But their antimicrobial activity had been repressed by ribose and lactose, respectively.

Key words: Antimicrobial substances, Corynebacterium kutscheri, Corynebacterium xerosis, fermentation.