Process for producing conjugated linoleic acid by using rubber seed oil

Abstract

The invention discloses a process for producing conjugated linoleic acid by using rubber seed oil, comprising the following steps of: undergoing an isomerization reaction between the rubber seed oil containing linoleic acid with higher content and a polyethylene glycol 400 solution of alkali under the protection of nitrogen gas, carrying out molecular distillation purification, and adding tertbutylhydroquinone with stronger antioxidation to the product to produce the conjugated linoleic acid. In the invention, the utilized base oil is the rubber seed oil, and the content of the linoleic acid of the rubber seed oil is as high as 32.8%, thus the rubber seed oil is an excellent oil source for preparing the conjugated linoleic acid; and the utilized solvent is a pharmaceutic adjuvant, thus the safety of the products is ensured. The purification process is a molecular distillation technique, thus the conjugated linoleic acid products with higher purification can be obtained. The invention has the advantages of high yield of the reaction, simple process flow and good product quality.

Description

technical field [0001] The invention relates to a process for producing conjugated linoleic acid by using rubber seed oil as an alkali catalyst. It belongs to the field of oil deep processing. Background technique [0002] Conjugated linoleic acid (English abbreviation: CLA) is a general term for several geometric isomers and bond isomers of linoleic acid containing conjugated double bonds. Geometric isomers and positional isomers mainly include 9-c, 11-t; 10-t, 12-c; 9-c, 11-c; 10-c, 12-c; 9-t, 11-t; 10-t, 12-t; 9- t, 11-c; 10-c, 12-t, etc. In 1987, the natural conjugated linoleic acid was first isolated from roast beef, and it was considered to be a substance with anti-cancer function. In 1990, C.lp research confirmed the preventive and inhibitory effects of conjugated linoleic acid on mouse breast cancer. Later, an article published by the American Association of Oleochemists summarized and emphasized the role of conjugated linoleic acid in reducing fat and increasing...

AI Technical Summary

Problems solved by technology

[0004] Rubber seed oil is a by-product of the rubber planting industry in South China. At present, the utilization rate of it in the society is not high enough, resulting in a large amount of rubber seed resources being wasted every year.

According to the relevant data in China, rubber seed oil can only be used as industrial oil and feed oil, and there are still many blank areas in the field of its deep processing. In the prior art, no one has used rubber seed oil to prepare conjugated Linoleic acid can make full use of the characteristics of rubber seed oil as a highly unsaturated oil, which can greatly improve the utilization rate and market competitiveness, and broaden the economic promotion path of the rubber planting industry