Method for the chromatographic isolation of vitamin E isomers
AssigneeMalaysian Palm Oil Board
InventorsChoo Yuen May, Ma Ah Ngan, Yusof Basiron
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Abstract
A method for the chromatographic separation of vitamin E isomers such as α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, α-tocotrienol, β-tocotrienol, γ-tocotrienol and δ-tocotrienol from a vitamin E containing mixture by combining the vitamin E mixture with an adsorbent to effect adsorption of the vitamin E isomers on the adsorbent; and then selectively desorbing the vitamin E isomers from the adsorbent with a solvent under supercritical conditions.
Claims22
A method for separating vitamin E isomers from a vegetable oil comprising:
- (a) esterifying free fatty acid components of the vegetable oil, or trans-esterifying glyceride components of the vegetable oil, with one or more monohydric alcohols to provide esters;
- (b) removing the esters to provide a vitamin E concentrate;
- (c) combining the vitamin E concentrate with an adsorbent to effect adsorption of the vitamin E isomers on the adsorbent;
- and
- (d) selectively desorbing the vitamin E isomers from the adsorbent with a solvent under supercritical conditions.
A method for separating vitamin E isomers from a vegetable oil comprising:
- (a) esterifying free fatty acid components of the vegetable oil, or trans-esterifying glyceride components of the vegetable oil, with one or more monohydric alcohols to provide esters;
- (b) removing the esters to provide a vitamin E concentrate;
- (c) combining the vitamin E concentrate with an adsorbent to effect adsorption of the vitamin E isomers on the adsorbent;
- and
- (d) selectively desorbing the vitamin E isomers from the adsorbent with a solvent under supercritical conditions;
- wherein the solvent comprises an ethanol entrainer.
Dependencies are inferred from the claim text.