Process for producing conjugated linoleic acid by using rubber seed oil

A technology of conjugated linoleic acid and rubber seed oil is applied in the field of deep processing of oil seeds, which can solve the problems of waste of rubber seed resources and insufficient utilization rate, and achieve high product quality, improved purity and yield, and high reaction yield. Effect

Inactive Publication Date: 2011-06-08
海南省粮油科学研究所
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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 b

Method used

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Embodiment

[0015] Example: Dissolve 5Kg of potassium hydroxide completely into 60Kg of PEG400, then mix it evenly with 20Kg of rubber seed oil, put the mixed reaction system into the isomerization device, pour in the inert gas nitrogen, open the reflux device, and slowly Slowly raise the temperature to 140°C, and react at a constant temperature of 140°C for 1.5h under the protection of nitrogen, then cool the reactant, adjust its pH value to 2~3 with hydrochloric acid solution, stir well, let stand to separate the lower layer solution, and wash the remaining material with brine Several times until the pH of the washing water is 6~7. The washed material is concentrated by rotary evaporation first, and the crude product is purified by multi-stage molecular distillation at a distillation temperature of 180°C, an operating pressure of 10Pa, a feed rate of 40mL / h, and a rotation speed of 200 r / m. Add 0.02% of the first type of antioxidant TBHQ to the final material, stir evenly, and make the ...

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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...

Claims

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Application Information

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IPC IPC(8): C11C3/00C11C3/14C11C1/00C11C1/10C11B5/00
Inventor 郑联合丁文平陈艳
Owner 海南省粮油科学研究所
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