Discoloring method for reducing trans-fatty acid content of vegetable oil

A technology of trans fatty acid and vegetable oil, which is applied in the direction of fat oil/fat refining and fat production, etc.
CN101538508AInactive Publication Date: 2009-09-23SHANGHAI RONGS HEALTH IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI RONGS HEALTH IND CO LTD
Publication Date
2009-09-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a Discoloring method for reducing trans-fatty acid content of vegetable oil, belonging to the technical field of vegetable oil refining and discoloring. In the discoloring method, activated clay and neutralized vegetable oil are used as the raw material; on the one hand, discoloring earth is selected; and on the other hand, the discoloring technology of reducing fatty acid trans-isomer is obtained by controlling the discoloring temperature, the clay usage amount, the discoloring time and the stirring rate and integrally considering the trans-isomerization of discoloring effect and fatty acid. The invention reduces the content of trans-fatty acid formed during discoloring, builds up the discoloring technology of low trans-acid, plays a role of good guiding for improving the refining processing technology of vegetable oil and lays a foundation for constructing the processing technology of healthy vegetable oil.
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Description

technical field

[0001] The invention discloses a decolorization method for reducing the content of trans fatty acid in vegetable oil, which belongs to the technical field of vegetable oil refining decolorization. Background technique

[0002] During the refining and decolorization process of vegetable oil, unsaturated fatty acids such as oleic acid, linoleic acid, and linolenic acid form certain trans hydroperoxides to varying degrees, and trans fatty acids are produced in the further reaction of hydroperoxides; except In addition to hydroperoxide conversion, the presence of free radicals in the decolorization process will catalyze the formation of trans-acids from unsaturated double bonds; in the presence of acidic catalysts, fatty acids undergo trans-isomerization. The adsorption clay for vegetable oil decolorization has the property of solid acid, and has Bronsted acid centers and Lewis acid centers on the surface. The decolorization process directly affects the content o...

Claims

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