1. Department of Process Engineering, National School of Agro-Industrial Sciences (ENSAI), University of Ngaoundere, P.O. Box 455, Ngaoundere, Adamaoua, Cameroon
2. Department of Food Process & Quality Control, Bioprocess Laboratory, University Institute of Technology (UIT), University of Ngaoundere, P.O. Box 455, Ngaoundere, Adamaoua, Cameroon