African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12502

Full Length Research Paper

Effect of vitamins and bivalent metals on lysine yield in Bacillus megaterium

Ekwealor, I. A.1* and Obeta, J. A. N.2
  1Department of Applied Microbiology and Brewing, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria 2Department of Microbiology, University of Nigeria, Nsukka, Enugu State, Nigeria.
Email: [email protected]

  •  Accepted: 02 February 2007
  •  Published: 04 June 2007

Abstract

 

The effects of vitamins and bivalent metals on lysine accumulation in Bacillus strains were investigated. Biotin enhanced lysine production in all the Bacillus strains, while folic acid and riboflavin stimulated lysine yields in Bacillus megaterium SP 86 only. All bivalent metals stimulated lysine accumulation in B. megaterium SP 86 and B. megaterium SP 14, while Co2+ and Zn2+ improved lysine levels in all the strains.

 

Key words: Vitamins, bivalent metals, L-lysine, Bacillus, accumulation.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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