Josphat C. Matasyoh 3, Caroline J. Kosgei1*, Charles M. Mwendia1, Charles G. Mwaniki2,, 1Department of Biochemistry, Egerton University. P. O. Box 536, Egerton-20115, Kenya 2Department of Applied and Technical Biology. Technical University of Kenya P.O. Box 52428-00200 Nairobi, Kenya 3Department of Chemistry, Egerton University. P. O. Box 536, Egerton-20115, Kenya., Kenya