Method of refining edible oil for preventing auto-oxidation of t

Details Method of refining edible oil for preventing auto-oxidation of t Method of refining edible oil for preventing auto-oxidation of t

1985-04-02

1986-11-18

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260420, 260428, 426478, C09F 510, C11B 304

Patent

active

046234896

ABSTRACT:
A method of refining edible oil which protects the oil from auto-oxidation and hydrolysis. The method of refining is of the type which includes a degumming stage where acid-water are blended with the oil to capture phosphatides in the oil and then separated from the oil to carry away the phosphatides. The method comprises deaerating the acid-water prior to blending with the oil so that as the acid-water removes phosphatides it also removes oxygen from the oil. Subsequent to the degumming stage, it is preferable that the processed oil be protected against any further contact with oxygen or water. If it is desired to remove all traces of oxygen an oxygen scavenger such as sodium sulfite can be added to the acid-water used in degumming.

REFERENCES:
patent: 3857866 (1974-12-01), Gibble et al.
patent: 4089880 (1978-05-01), Sullivan
Anderson, A. J. C., Refining of Oils & Fats, The MacMillan Co., N.Y., 1962, pp. 95-96.

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