1. School for Agriculture and Environmental Science, Central University of Technology: Free State, P/bag x20539, 1 Pres. Brandt Street, Bloemfontein 9300, South Africa
2. Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
3. Department of Biotechnology and Food Technology, Tshwane University of Technology, Pretoria, South Africa
4. Laboratorium of Microbiology, Ghent University, K.L. Ledeganckstraat 35, Ghent B-9000, Belgium
5. BCCM/LMG Bacteria Collection, Ghent University, K.L. Ledeganckstraat 35, Ghent B-9000, Belgium