Invention Grant
- Patent Title: Lactic acid production method
- Patent Title (中): 乳酸生产方法
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Application No.: US12666690Application Date: 2008-06-18
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Publication No.: US08349597B2Publication Date: 2013-01-08
- Inventor: Masateru Ito , Shin-ichi Minegishi , Eri Shimizu , Kenji Sawai , Yohito Ito , Hideki Sawai , Katsushige Yamada
- Applicant: Masateru Ito , Shin-ichi Minegishi , Eri Shimizu , Kenji Sawai , Yohito Ito , Hideki Sawai , Katsushige Yamada
- Applicant Address: JP
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP
- Agency: DLA Piper LLP (US)
- Priority: JP2007-172082 20070629; JP2007-198567 20070731
- International Application: PCT/JP2008/061105 WO 20080618
- International Announcement: WO2009/004922 WO 20090108
- Main IPC: C12P7/56
- IPC: C12P7/56
Abstract:
A method of producing lactic acid by separating lactic acid produced in a culture solution by microbial fermentation, comprising: a step (A) of filtering the culture solution through a nano-filtration membrane; and a step (B) of distilling a lactic-acid-containing solution produced in step (A) under a pressure of 1 Pa to atmospheric pressure at a temperature of 25 to 200° C. to recover lactic acid.
Public/Granted literature
- US20100190222A1 LACTIC ACID PRODUCTION METHOD Public/Granted day:2010-07-29
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