Processes for preparation of oil compositions

Patent metadata

Field	Value
Publication number	US-9961916-B2
Application number	US-201615069682-A
Country	US
Kind code	B2
Filing date	Mar 14, 2016
Priority date	Nov 4, 2004
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

The present invention is directed to processes for preparing oil compositions having a high concentration of poly-unsaturated fatty acids and oil compositions having a low concentration of α-linolenic acid. In addition, the present invention is directed to processes for preparing oil compositions having advantageous stability characteristics.

First claim

What is claimed is:

1. A method of decreasing oxidative degradation of oil seeds or oil seed meats, the method comprising storing the oil seeds or the oil seed meats in the presence of an inert gas, wherein either:
(i) the inert gas is capable of complexing at least one transition metal in the oil seeds or oil seed meats;
(ii) the inert gas is carbon monoxide; or
(ii) the oil seeds or oil seed meats are stored in a temperature and humidity-controlled environment.

2. The method of claim 1 wherein the oil seeds are stored in the presence of the inert gas before the oil seeds are processed into an oil.

3. The method of claim 1 further comprising flaking the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being flaked.

4. The method of claim 1 further comprising milling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being milled.

5. The method of claim 1 further comprising dehulling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being dehulled.

6. The method of claim 1 wherein the inert gas is capable of complexing at least one transition metal in the oil seeds.

7. The method of claim 6 wherein the inert gas comprises carbon monoxide.

8. The method of claim 1 wherein the oil seeds comprise at least 2 wt. % unsaturated fatty acid having two or more carbon-carbon double bonds.

9. The method of claim 1 wherein the oil seed is from canola, soybean, corn, rapeseed, cottonseed, peanut, sunflower, olive, coconut, palm kernel or palm.

10. The method of claim 1 wherein the oil seed is from Arabidopsis , canola, carrot, coconut, corn, cotton, flax, linseed, maize, palm kernel, peanut, potato, rapeseed, safflower, soybean, sunflower, tobacco, and mixtures thereof.

11. The method of claim 10 wherein the oil seed is from soybean.

12. The method of claim 1 wherein the oil seeds or oil seed meats are stored in a temperature and humidity-controlled environment.

13. The method of claim 12 wherein the environment is maintained at a temperature of about 0 to 40° C. and a relative humidity of about 25 to 80%.

14. The method of claim 6 , further comprising flaking the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being flaked.

15. The method of claim 2 , further comprising milling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being milled.

16. The method of claim 3 , further comprising milling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being milled.

17. The method of claim 6 , further comprising milling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being milled.

18. The method of claim 2 , further comprising dehulling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being dehulled.

19. The method of claim 3 , further comprising dehulling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being dehulled.

20. The method of claim 6 , further comprising dehulling the oil seeds or oil seed meats, wherein the oil seeds or the oil seed meats are stored in the presence of the inert gas after being dehulled.

21. A method of decreasing oxidative degradation of oil seeds or oil seed meats, the method comprising storing the oil seeds or the oil seed meats in the presence of an inert gas, wherein either:
(i) the oil seeds or oil seed meats are stored in the presence of the inert gas before or during the processing of the oil seeds or oil seed meats into an oil;
(ii) the inert gas is capable of complexing at least one transition metal in the oil seeds or oil seed meats;
(iii) the inert gas is carbon monoxide; or
(iv) the oil seeds or oil seed meats are stored in a temperature and humidity-controlled environment, wherein the method further comprises
cracking and dehulling whole oil seeds in the presence of an inert gas to form oil seed meats;
extracting the oil seed meats to form a crude oil;
degumming a crude oil under an inert atmosphere to form a degummed oil;
contacting the degummed oil with a bleaching material under process conditions that minimize oxidation to form a bleached oil; and
deodorizing the bleached oil in a continuous deodorizer at a temperature from 220° C. to 255° C. at a pressure of less than about 1.4 kPa and a residence time of up to 30 minutes to form the oil composition having an anisidine value of less than about 3.

22. The method of claim 21 , wherein the oil seed is soybean, corn, rapeseed, cottonseed, peanut, sunflower, olive, coconut, palm kernel, or palm.

Assignees

• Monsanto Technology Llc

Inventors

• Arhancet Juan P
• Heise Jerald D
• Makadia Vallabh

Classifications

• C11B3/001

  by a combination of two or more of the means hereafter · CPC title

• C11B1/10

  by extracting · CPC title

• C11B3/04

  with acids · CPC title

• A23L7/13

  Snacks or the like obtained by oil frying of a formed cereal dough · CPC title

• C11B3/12

  by distillation · CPC title