Over-expression of cytochrome b2 in yeast for increased ethanol production
AssigneeDanisco US Inc.
InventorsDaniel Joseph MACOOL, Quinn Qun ZHU
Life of this patent
Estimating the term…
Abstract
Described are compositions and methods relating to modified yeast that over-express cytochrome B2. The yeast produces an increased amount of alcohol compared to parental cells. Such yeast is particularly useful for large-scale ethanol production from starch substrates.
Claims15
Modified yeast cells derived from parental yeast cells, the modified cells comprising a genetic alteration that causes the modified cells to produce an increased amount of CYB2P polypeptides compared to the parental cells, wherein the modified cells produce during fermentation more ethanol compared to the amount of ethanol produced by otherwise identical parent yeast cells.
A method for increased production of alcohol from yeast cells grown on a carbohydrate substrate, comprising:
- introducing into parental yeast cells a genetic alteration that increases the production of CYB2P polypeptides compared to the amount produced in the parental cells.
Dependencies are inferred from the claim text.