Conjugated linoleic acid rich vegetable oil production from linoleic rich oils by heterogeneous catalysis

摘要

The invention is generally directed to conjugated linoleic acid (CLA)-rich vegetable oil production from linoleic rich oils by heterogeneous catalysis. A heterogeneous catalytic vacuum distillation process is used under high temperature conditions to isomerize linoleic acid in triacylglyceride vegetable oils to CLA to produce CLA-rich oils. After processing, the catalyst may be removed by filtration or centrifugation to obtain high quality, CLA-rich oils. The CLA-rich oils may then serve as a potent and bioactive nutraceutical and can be incorporated into various food products, such as a CLA-rich dressing, margarine or chips.

主权项

1. A process for producing conjugated linoleic acid-rich oil, said process comprising the steps of:
a. mixing a linoleic acid-rich oil with a catalytic amount of ruthenium, rhodium, silver, or nickel on a carbon or silica support to form an oil-catalyst mixture; and b. heterogeneous catalysis via vacuum steam distillation of said oil-catalyst mixture at a pressure between approximately 1 mm Hg and approximately 2 mm Hg, at a temperature between 221° C. and approximately 282° C., and for up to approximately 192 minutes to produce said conjugated linoleic acid-rich oil.