SEED OIL REFINEMENT

摘要

Methods for refining crude tobacco seed oils and the refined tobacco seed oils produced by such methods are provided herein. In particular, methods for reducing the amount of free fatty acids in the crude oil, for modifying the color of the crude oil, and for reducing any undesirable taste/odor associated with the crude oil are provided. The present invention further relates to the incorporation and use of such refined oil within various products.

主权项

1. A method of refining a crude oil derived from a seed of a plant of the Nicotiana species, comprising:
a) treating the crude oil derived from a seed of a plant of the Nicotiana species with acid to give an acid-treated oil; b) neutralizing the acid-treated oil with a basic aqueous solution to give a neutralized mixture and separating a precipitate from the neutralized mixture to give a neutralized oil; and c) bleaching the neutralized oil, deodorizing the neutralized oil, or both bleaching and deodorizing the neutralized oil,to provide a refined tobacco seed oil comprising less than 5% free fatty acids by weight, wherein the method results in at least 10% less loss than traditional methods of refining crude oils.