发明名称 |
IMPROVEMENT OF ETHANOL YIELD WITH REDUCTION OF BIOMASS ACCUMULATION IN THE RECOMBINANT STRAIN OF SACCHAROMYCES CEREVISIAE OVEREXPRESSING ALKALINE PHOSPHATE |
摘要 |
Described herein is a method to increase ethanol yield during alcoholic fermentation by expression a truncated versions of the Saccharomyces cerevisiae PHO8 gene coding for vacuolar or cytosolic form of alkaline phosphatase, which expression lowers biomass accumulation while diverting greater carbon to ethanol production. Also described are as nucleic acid sequences and vectors for expression of the PHO8 gene and strains carrying the same. Strains containing intact PHO8 gene encoding vacuolar form of alkaline phosphatase, had slightly lower intracellular ATP levels with insignificant changes in biomass accumulation and up to 13% increase in ethanol production. |
申请公布号 |
US2015322461(A1) |
申请公布日期 |
2015.11.12 |
申请号 |
US201314652133 |
申请日期 |
2013.12.20 |
申请人 |
ARCHER DANIELS MIDLAND COMPANY ;INSTITUTE OF CELL BIOLOGY |
发明人 |
Semkiv Marta;Dmytruk Kostyantyn;Sibirny Andriy |
分类号 |
C12P7/06;C12N9/16 |
主分类号 |
C12P7/06 |
代理机构 |
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代理人 |
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主权项 |
1. A strain of S. cerevisiae comprising a nucleic acid sequence encoding an alkaline phosphatase enzyme operably linked to a promoter that expresses the alkaline phosphatase enzyme in the cell. |
地址 |
Decatur IL US |