Biochemical Studies on Yeast

Part III. Glycolysis and Oxidation of Sugar (I)

Abstract

The growth of Zygosaccharomyces soja was stronglyinhibited by the addition of 10^-2 Mmonoiodoacetic acid and 10^-3 M-potassium cyanide. The formation of a considerable amount of riboflavin was recognized after 5 days cultivation of this organism in presence of the aforementioned two inhibitors, and its growth was considerably improved after the formation and accumulation of riboflavin. Furthermore, the effect of the aforementioned two inhibitors upon the growth of this organism in young stage was compensated with the addition of riboflavin.