Paper Details

Stimulating effect of B-vitamins and Bivalent metals on lysine accumulation by Microbacterium lacticum

C. C. Ezemba, I. A. Ekwealor , C. A. Ozokpo, C. E. Chukwujekwu, V. N. Anakwenze

DOI: https://dx.doi.org/10.12692/ijb/5.12.18-23

Int. J. Biosci. 5(12), 18-23. December, 2014. (PDF)

Abstract:

The stimulating effect of B-vitamins and bivalent metals on lysine production by Microbacterium  lacticum was investigated. Four of the bivalent metals, Ca2+, Sr2+, Co2+, Zn2+, stimulated lysine accumulation and Sr2+ at 5.0µg/ml level, gave the highest lysine yield. The effect of vitamins on lysine accumulation by Microbacterium lacticum  showed that biotin, folic acid and riboflavin enchanced lysine production. Biotin at all lysine level improved lysine accumulation while Sr2+ at 1.0µg/ml concentration gave a maximum lysine yield of 1.95mg/ml.