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US 4,504,503 AGranted
Fractionation of butterfat using a liquefied gas or a gas in the supercritical state
AssigneeLever Brothers Company
InventorsGerhard Biernoth, Werner Merk
Life of this patent
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Abstract
A process for producing a mixture of triglycerides displaying butter-like properties by fractionating fats with a liquefied gas or a gas under supercritical conditions. Said mixture of triglycerides predominantly consists of triglycerides with a carbon number ranging from 24 to 42 and can be used as one of the fat components of a margarine fat blend in order to improve its butter-like properties.
Claims6
A process for producing a mixture of triglycerides having butter-like properties, comprising
- (a) extracting butterfat with a gas in the supercritical state under pressure and temperature conditions such that a fraction (i) in which from 65 to 100 per cent by weight of the triglycerides having a carbon number ranging from 24 to 42, dissolves in said gas and a fraction (ii) enriched in triglycerides having a carbon number higher than 42 remains as a residue, and
- (b) separating fraction (i) from said gas by applying conditions at which the solubility of the triglycerides in said gas is lower than under the extraction conditions.
A process for producing a mixture of triglycerides having butter-like properties, comprising
- (a) extracting butterfat with a gas in the supercritical state, said gas being selected from the group consisting of N.sub.2 O, SF.sub.6, CF.sub.3 Cl, CF.sub.2 Cl, CH.sub.2 CF.sub.2, C.sub.3 F.sub.8, CHF.sub.3, ethane, propane, butane, ethylene, acetone, carbon dioxide and mixtures thereof, said gas being under pressure and temperature conditions such that a fraction (i) in which from 65 to 100 per cent by weight of the triglycerides having a carbon number ranging from 24 to 42, dissolves in said gas and a fraction (ii) enriched in triglycerides having a carbon number higher than 42 remains as a residue, and
- (b) separating fraction (i) from said gas by applying conditions at which the solubility of the triglycerides in said gas is lower than under the extraction conditions.
Dependencies are inferred from the claim text.