3-Hydroxy-γ-decalactone is the precursor of dec-2 and dec-3-en-4-olides which are valuable aroma compounds not yet produced. To promote the accumulation of this lactone, the yeast Yarrowia lipolytica was placed in different environmental conditions aiming at altering β-oxidation fluxes. The concentration of substrate, pH, aeration and dissolved oxygen level were modified. We observed an important accumulation a...
Yarrowia lipolytica converts methyl ricinoleate to γ-decalactone, a high-value fruity aroma compound. The highest amount of 3-hydroxy-γ-decalactone produced by the yeast (263 mg lˉ¹) occurred by increasing the kLa up to 120 hˉ¹ at atmospheric pressure; above it, its concentration decreased, suggesting a predominance of the activity of 3- ydroxyacyl-CoA dehydrogenase. Cultures were grown under high-pressure, i.e...
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