C - Chemistry – Metallurgy – 11 – B
Patent
C - Chemistry, Metallurgy
11
B
C11B 3/06 (2006.01) C11B 3/04 (2006.01)
Patent
CA 2049720
A method of removing gums which cannot be removed by simple water degumming from plant oils having the following steps: (a) adding to a plant oil containing gum substances not hydratable with water and wax substances, substantially 0.01 to 0.08% of a food acid or an acid anhydride of a food acid in a 5 to 15% solution thereof at a temperature of 20 to 70°C, intimately mixing the oil and the solution and causing the oil and the solution to remain in contact for a contact time in excess of 5 minutes with slow stirring: (b) to a mixture formed in step (a) adding a 1 to 5% solution of a base at a temperature of 10 to 40°C in an amount between 40 and 150% of the amount stoichiometrically required for neutralization to the acid added to the mixture in step (a) and effecting a reaction in the mixture for a period of 1 to 4 hours under slow stirring to effect coagulation of at least a majar portion of the gum substances and optionally reducing a content of high melting triglycerides and wax substances in the mixture; (c) rapidly and briefly heating the mixture formed in step (b) to separate an oil component from a component precipitated therefrom: and (d) optionally washing the oil component with a small quantity of water.
Borodi Attila
Chikany Bela
Csernitzky Karoly
Peredi Jozsef
Rohdenburg Herbert Ludwig
Fetherstonhaugh & Co.
Rohdenburg Herbert
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