Biosynthesis of 4-Hydroxy-2,5-dimethyl-3(2<i>H</i>)-furanone by <i>Zygosaccharomyces rouxii</i>

Abstract

4-Hydroxy-2,5-dimethyl-3(2 H )-furanone (HDMF) production by Zygosaccharomyces rouxii was studied under various culture conditions. Among the precursors added, d -fructose 1,6-bisphosphate was the best. Aerobic conditions led to a higher HDMF level, and the concentration of the added d -fructose 1,6-bisphosphate up to 10% increased HDMF production; HDMF biosynthesis then decreased and was strongly inhibited by 20% of d -fructose 1,6-bisphosphate. HDMF was produced by Z. rouxii during the growth phase and the stationary phase. This microbiological method enabled the biosynthesis of “natural” HDMF at 100 ppm. Keywords: 4-Hydroxy-2,5-dimethyl-3(2 H )-furanone; Zygosaccharomyces rouxii