Effects of exogenous hemin on the niacin content of aerobically grown Saccharomyces uvarum.


In Saccharomyces uvarum aerobically grown in the tryptophan-added medium, the niacin content started to increase when both tryptophan and glucose in the medium had almost been exhausted. In the kynurenine-added medium, the niacin production occurred immediately after incubation started. Hemin added to the medium enhanced total niacin production by… (More)