Invention Grant
- Patent Title: Method for producing high purity omega-3 fatty acid ethyl ester
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Application No.: US14914804Application Date: 2014-08-18
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Publication No.: US10240172B2Publication Date: 2019-03-26
- Inventor: Yoshio Shimizu , Keisuke Uryu , Tetsuro Taira , Jun Fujii
- Applicant: Bizen Chemical Co., Ltd.
- Applicant Address: JP Akaiwa-shi, Okayama
- Assignee: Bizen Chemical Co., Ltd.
- Current Assignee: Bizen Chemical Co., Ltd.
- Current Assignee Address: JP Akaiwa-shi, Okayama
- Agency: Seed IP Law Group LLP
- Priority: JP2013-179769 20130830; JP2014-058816 20140320
- International Application: PCT/JP2014/004209 WO 20140818
- International Announcement: WO2015/029364 WO 20150305
- Main IPC: C12P7/64
- IPC: C12P7/64 ; C07C67/03 ; C07C67/08 ; C07C67/54 ; C07C67/56 ; C07C67/60 ; C11C1/08 ; C11C1/10 ; C11C3/00 ; C11C3/04 ; C11B1/02 ; C11B3/10 ; C11B3/12 ; C11B5/00
Abstract:
The present invention relates to the field of methods for purifying fatty acid ethyl esters. According to the present invention, a method for obtaining a ω3 fatty acid ethyl ester, such as EPA and DHA, each as a high purity product at a high yield is provided. In the method according to the present invention, a raw material fat including EPA and DHA is treated with a lipolytic enzyme and ethyl-esterification is performed as needed; the treated substance is fractionated into a glyceride fraction and a free fatty acid fraction; a fraction comprising more EPA ester and a fraction comprising DHA ester are obtained from the respective fractions; the fraction comprising more EPA ester is purified to prepare a high-purity EPA ester; and the fraction comprising more DHA ester is purified to prepare a high-purity DHA ester.
Public/Granted literature
- US20160208296A1 METHOD FOR PRODUCING HIGH PURITY OMEGA-3 FATTY ACID ETHYL ESTER Public/Granted day:2016-07-21
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