Abstract:A sterile mineral salts broth was fortified with different additives, inoculated with conidia of Penicillium rubrum P-13, and incubated quiescently for 14 days or with shaking for 3 to 5 days. Maximal fungal growth and rubratoxin production occurred when the broth contained 20~o sucrose. Broth with 10~o glucose, 10~o fructose, 5% maltose, or 1 }~, asparagine supported formation of substantial amounts of rubratoxin (52.9-78.5 rag/100 ml). When the broth was fortified with glucose plus lysine, arginine aspartic … Show more
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