Soybean oil process
AssigneeCarolina Soy Products LLC
InventorsJerry E. Tysinger, Jerry F. Richmond, Robert B. Dawson
Life of this patent
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Abstract
A solvent extraction free, caustic refining free, process for producing refined soybean oil from soybeans is described in which soybeans, after cleaning, cracking and dehulling, are crushed in less than 60 seconds while heating the soybeans to a frictionally generated temperature of from about 300° F. to about 370° F. Free fatty acids are then removed through physical refining, instead of previously employed caustic refining, since the low level of nonhydratable phospholipids does not create undesirable flavors during the physical refining process. The resultant oil exhibits a significantly greater frylife that non-hydrogenated soybean oil produced by solvent extraction and caustic refining.
Claims16
A process for producing soybean oil from soybeans comprising:
- a) heating said soybeans to at least 300° F.;
- b) mechanically pressing said soybeans to separate soybean oil from soybean meal;
- and
- c) heating said soybean oil to a temperature of from about 450° F. to about 500° F. under a vacuum to remove free fatty acids from said soybean oil.
A solvent extraction free, caustic refining free, process for producing non-hydrogenated soybean oil having an improved frylife comprising:
- a) heating said soybeans to a temperature of at least 300° F. in less than 60 seconds;
- b) crushing said soybeans to form a mixture of soybean meal and soybean oil;
- c) pressing said mixture to separate soybean oil from said soybean meal;
- and
- d) heating the soybean oil to a temperature of from about 450° F. to about 500° F. under a vacuum to remove free fatty acids from said soybean oil.
Dependencies are inferred from the claim text.