Process for the removal of cholesterol from egg yolk
AssigneeSKW Trostberg Aktiengesellschaft
InventorsJan Cully, Heinz-Rudiger Vollbrecht
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Abstract
The present invention provides a process for the removal of cholesterol from egg yolk, wherein 1. a diluted egg yolk mixture is produced by the addition of an aqueous solution of ammonium carbonate or of sodium chloride, 2. the diluted egg yolk mixture is mixed with a solid adsorbent or complexing agent until the cholesterol is adsorbed or complexed and thereafter 3. the solid adsorbent loaded with cholesterol or the cholesterol complex is separated from the egg yolk mixture and 4. subsequently ammonium carbonate or sodium chloride and possibly water is removed.
Claims33
A method for removing 80 to 95% by weight of the total weight of cholesterol contained in an egg yolk, said method comprising the sequential steps of:
- (a) adding water and ammonium carbonate or ammonium bicarbonate to the egg yolk to form an aqueous egg yolk mixture, said ammonium carbonate or ammonium bicarbonate being added in an amount insufficient to cause breaking of the egg yolk;
- (b) admixing a solid adsorbent or a complexing agent with the aqueous egg yolk mixture whereby the cholesterol contained in said aqueous egg yolk mixture is adsorbed on the adsorbent or complexed with the complexing agent;
- (c) separating the adsorbent loaded with the cholesterol or the cholesterol complexed with the complexing agent from the aqueous egg yolk mixture to obtain an aqueous egg yolk mixture of reduced cholesterol content;
- and
- (d) removing the ammonium carbonate or ammonium bicarbonate from the aqueous egg yolk mixture of reduced cholesterol content.
A method for removing 80 to 95% by weight of the total weight of cholesterol contained in an egg yolk, said method comprising the sequential steps of:
- (a) adding water and sodium chloride to the egg yolk to form an aqueous egg yolk mixture, said sodium chloride being added in an amount insufficient to cause breaking of the egg yolk;
- (b) admixing a solid adsorbent or a complexing agent with the aqueous egg yolk mixture whereby the cholesterol contained in said aqueous egg yolk mixture is adsorbed on the adsorbent or complexed with the complexing agent;
- (c) separating the adsorbent loaded with the cholesterol or the cholesterol complexed with the complexing agent from the aqueous egg yolk mixture to obtain an aqueous egg yolk mixture of reduced cholesterol content;
- and
- (d) removing the sodium chloride from the aqueous egg yolk mixture.
Dependencies are inferred from the claim text.