Alcoholic fermentation yeast and method for producing ethanol using same
[Problem] To provide an alcoholic fermentation yeast having resistance to limonene, which is a fermentation inhibitor, and a method for producing ethanol using the alcoholic fermentation yeast. [Solution] An alcoholic fermentation yeast Saccharomyces cerevisiae (Deposition No. NITE BP-890), which has resistance to limonene and can grow in the presence of limonene at a concentration of 0.1-0.5 wt %, and a method for producing ethanol using the alcoholic fermentation yeast.
1. A method of producing ethanol from a citrus juice residue extract comprising contacting alcoholic fermentation yeast strain Saccharomyces cerevisiae NITE BP-890 with a citrus juice residue extract and culturing the yeast strain under conditions and for a time sufficient to produce ethanol.
2. The method of producing ethanol according to claim 1 , wherein the citrus juice residue extract is a heavy liquid obtained by subjecting a citrus juice residue to three-phase centrifugation.
3. The method of producing ethanol according to claim 1 , wherein the citrus juice residue extract is acidified.
4. The method of producing ethanol according to claim 3 , wherein the citrus juice residue extract is acidified with nitric acid.