Sucrose unassimilating flocculent yeast
An object of the present invention is to provide a sucrose unassimilating yeast which has a flocculation ability and has much of a proven performance of food production. The present invention pertains to a yeast strain expressed by accession number: NITE BP-1587.
1. Saccharomyces cerevisiae strain NITE BP-1587.
2. The Saccharomyces cerevisiae strain according to claim 1 , wherein the strain is employed for a method of producing sugar and ethanol comprising a step of fermenting sugar liquid derived from a plant with yeast.
3. The Saccharomyces cerevisiae strain according to claim 1 , wherein the strain is employed for a method of producing sugar and ethanol comprising steps of:
removing non-sugar components contained in sugar liquid derived from a plant to clarify the sugar liquid; and
adding yeast to the clarified sugar liquid to carry out ethanol fermentation at a given temperature under an anaerobic condition for an appropriate length of time.
4. A method of producing sugar and ethanol comprising a step of fermenting sugar liquid derived from a plant with the Saccharomyces cerevisiae strain according to claim 1 .
5. A method of producing sugar and ethanol comprising steps of:
removing non-sugar components contained in sugar liquid derived from a plant to clarify the sugar liquid; and
adding the strain according to claim 1 to the clarified sugar liquid to carry out ethanol fermentation at a given temperature under an anaerobic condition for an appropriate length of time.