Invention Grant
- Patent Title: Acid-resistant yeast with suppressed ethanol production pathway and method for producing lactic acid using same
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Application No.: US17047810Application Date: 2019-02-28
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Publication No.: US11339398B2Publication Date: 2022-05-24
- Inventor: Jae Yeon Park , Tae Young Lee , Ki Sung Lee
- Applicant: SK INNOVATION CO., LTD.
- Applicant Address: KR Seoul
- Assignee: SK INNOVATION CO., LTD.
- Current Assignee: SK INNOVATION CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Abelman, Frayne & Schwab
- Agent Stefan Knirr; Douglas Gilbert
- Priority: KR10-2018-0044509 20180417
- International Application: PCT/KR2019/002433 WO 20190228
- International Announcement: WO2019/203436 WO 20191024
- Main IPC: C12N9/02
- IPC: C12N9/02 ; C12N9/04 ; C12P7/20 ; C12N15/81 ; C07K14/39 ; C12P7/56
Abstract:
The present invention relates to an acid-resistant yeast endowed with a lactic acid production ability and having a suppressed ethanol production pathway, and a method for producing lactic acid using same. According to the present invention, by effectively suppressing the production of ethanol in an acid-resistant yeast, and by expressing an LDH enzyme with strong expression and high efficiency, it is possible to produce lactic acid with high yield even at low pH without degrading growth.
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