Invention Grant
- Patent Title: Process for refining vegetable oil with suppression of unwanted impurities
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Application No.: US16639419Application Date: 2018-08-22
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Publication No.: US11421183B2Publication Date: 2022-08-23
- Inventor: Krishnadath Bhaggan , Erik Johan Anton Schweitzer , Jeanine Luvelle Werleman
- Applicant: Bunge Loders Croklaan B.V.
- Applicant Address: NL Wormerveer
- Assignee: Bunge Loders Croklaan B.V.
- Current Assignee: Bunge Loders Croklaan B.V.
- Current Assignee Address: NL Wormerveer
- Agency: Morgan, Lewis & Bockius LLP
- Priority: EP17275126 20170823
- International Application: PCT/EP2018/072653 WO 20180822
- International Announcement: WO2019/038320 WO 20190228
- Main IPC: C11B3/00
- IPC: C11B3/00 ; A23L33/115 ; C11B3/04 ; C11B3/06 ; C11B3/14 ; C11B3/10

Abstract:
Process for refining vegetable oil, to suppress the formation of monochloropropanediol esters (MCPDe) and reduce the content of glycidyl esters, comprising first and second refinement stages, wherein the first refinement stage comprises: a) providing a crude vegetable oil having a combined MCPDe and glycidyl ester content below 0.2 ppm; b) degumming the crude vegetable oil to produced degummed vegetable oil; c) bleaching of the degummed vegetable oil with activated bleaching earth under reduced pressure to yield bleached vegetable oil; d) adding a base to the bleached vegetable oil and subsequent stripping and deodorizing under reduced pressure at a temperature below 255° C. to yield an intermediate refined vegetable oil; and a second refinement stage comprising the steps of: e) bleaching of the intermediate refined vegetable oil using activated bleaching earth under reduced pressure to yield a bleached vegetable oil; and f) deodorizing at a temperature below 220° C. to yield fully refined vegetable oil, wherein the fully refined vegetable oil has a combined MCPDe and glycidyl ester content below 4 ppm.
Public/Granted literature
- US20210363459A1 Process for Refining Vegetable Oil with Suppression of Unwanted Impurities Public/Granted day:2021-11-25
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