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US 2003/0158429 A1Published application
Method for obtaining or recovering sterols and tocopherols
AssigneeCognis Deutschland GmbH & Co. KG
InventorsWolfgang Albiez, William G. Kozak, Thorsten Louwen
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Abstract
The invention relates to a process for isolating sterols and tocopherols from mixtures of fats and fatty derivatives and from residues left after they have been worked up. After splitting of the glycerides by hydrolysis and subsequent removal of the free fatty acids by distillation, the sterol esters still present are largely split into free sterols by an additional hydrolysis step.
Claims5
A process for concentrating and isolating sterols and/or tocopherols from sterol- and/or tocopherol-containing mixtures of fats and/or fatty derivatives containing glycerides, characterized in that
- (a) a mixture is hydrolyzed to split the glycerides present into free fatty acids and glycerol,
- (b) the glycerol-containing hydrolysis water is removed,
- (c) the free fatty acids and readily volatile unsaponifiable components are removed by distillation,
- (d) one or more additional hydrolyses of the distillation residue is/are carried out to split the sterol esters into free fatty acids and free sterols,
- (e) the hydrolysis water is removed and (f) the fatty acids formed are removed by distillation.
2 more elements
Dependencies are inferred from the claim text.