1. Laboratory of Microbiology Department of Microbiology Faculty of Science University of Yaoundé I Yaoundé Cameroon
2. Laboratory of Food Technology Institute of Agricultural Research for Development (IRAD) Yaoundé Cameroon
3. Laboratory of Metabolism and Food Science Department of Biochemistry Faculty of Science University of Yaoundé I Yaoundé Cameroon
4. Scientific Research Directoriat Institute of Agricultural Research for Development Yaoundé Cameroon