Vegetable oil extraction process

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Filing Information

  • Patent Number: US4944954
  • Application Number: US7271002
  • Filing date: 11/14/1988
  • Issue date: 07/31/1990
  • Predicted expiration date: 07/31/2007
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  • U.S. Classifications: 426/417  · 260/412.2  ·
  • International Classifications: C11B 100 ·
  • International Classifications: 260412;412.3;412.6 ·
  • Related U.S. Application Data:
    This is a divisional of co-pending application Ser. No. 855,127 filed on Apr. 23, 1986, now U.S. Pat. No. 4,808,426.
  • View document at: (opens new window):
    USPTO  ·  PAIR  ·  esp@cenet  ·  Patent Family
    * Related patent documents may or may not exist on these sites
10 Claims, No Drawings


Abstract

A vegetable oil process and assembly is disclosed for extracting oil from an oil bearing material such as soybean, corn and the like. The process comprises adding at least one reagent and an oil of preferably the same type as will be extracted from the oil bearing material to the oil bearing material to form a slurry mixture. The slurry is heated at a preselected temperature for a preselected period of time preferably under a partial vacuum. This processing reduces the phospholipid and trace metal content in the oil extracted from the oil bearing material. The oil product produced is light in color, shows no turbidity and exhibits a minimal amount of phosphorus, calcium, magnesium and iron. The oil is ready for physical refining.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2789120 RANCHERS COTTON OIL Cavanagh Apr 1957
US4259252 PERRY RICHARD R Perry et al. Mar 1981

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Independent Claims | See all claims (10)

  1. 1. A method of extracting a vegetable oil from an oil-bearing material comprising the steps of:adding a food oil to the oil-bearing material to form a slurry;deactivating enzymes present in said slurry;pasteurizing said slurry; and,subsequently extracting a physically refinable oil from said slurry, the oil physically refinable without further chemical refining.