Compaoré, Clarisse S., Nielsen, Dennis S., Ouoba, Irene, Berner, Torben S., Nielsen, Kristian F., Sawadogo-Lingani, Hagrétou, Diawara, Bréhima, Ouédraogo, Georges A., Jakobsen, Mogens and Thorsen, Line (2013) Co-production of surfactin and a novel bacteriocin by Bacillus subtilis subsp. subtilis H4 isolated from Bikalga, an African alkaline Hibiscus sabdariffa seed fermented condiment. International Journal of Food Microbiology, 162 (3). pp. 297-307. ISSN 0168-1605
Ouoba, Irene, Thorsen, Line and Varnam, Alan H. (2008) Enterotoxins and emetic toxins production by Bacillus cereus and other species of Bacillus isolated from Soumbala and Bikalga, African alkaline fermented food condiments. International Journal of Food Microbiolog, 124 (3). pp. 224-230. ISSN 01681605