1. Department of Public Health, Bomet University College, P.O. Box 701-20400, Bomet, Kenya
2. Department of Biological Sciences, Machakos University, P. O. Box 136–90100, Machakos, Kenya
3. College of Graduate Studies and Research, Mount Kenya University, P.O Box 342-01000, Thika, Kenya
4. Institute of Food Bioresources Technology, Dedan Kimathi University of Technology, P.O. Box 657-10100, Nyeri, Kenya
5. Department of Pure & Applied Sciences, Technical University of Mombasa, P.O Box 90420-80100, Mombasa, Kenya
6. Department of Food Science and Technology, Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000-00200, Nairobi, Kenya
7. Division of Industrial Microbiology and Biotechnology, Kenya Industrial Research and Development Institute, P.O Box 30650-00200, Nairobi, Kenya