C.E Onwuakor

Department of Microbiology, College of Natural Sciences, Michael Okpara University of Agriculture Umudike, Abia State, Nigeria

V.O Nwaugo

Department of Microbiology, Faculty of Biological & Physical Sciences, Abia State University Uturu, Abia State, Nigeria

C.J Nnadi

Department of Microbiology, Faculty of Biological & Physical Sciences, Abia State University Uturu, Abia State, Nigeria

J.M Emetole

Department of Product Development Programme, National Root Crop Research Institute Umudike, Abia State, Nigeria