Preparation of natural ferulaic acid

Abstract

The invention discloses a preparation method of natural ferulic acid, which comprises the steps as follows: after rice oil is expressed from rice bran, rice skin and rice germ or extracted from a solvent, the ferulic acid is extracted from a subsidiary product which is known as Blackfoot after the preparation of oryzanol in the rice oil. By the utilization of fatty acid salt as a dispersant, the crude product of the natural ferulic acid is prepared under the conditions of heating, pressurizing and stirring, and the pure product of the ferulic acid is prepared by centrifugal impurity removing,acid out and refining. The improved technology has low production costs, no lower alcohol used in the technology, the yield up to over 75 percent calculated in accordance with the content of the ferulic acid in the Blackfoot, and stable quality of products.

Description

A kind of preparation method of natural ferulic acid technical field The invention relates to a preparation method of natural ferulic acid. Background technique Ferulic acid, Chinese chemical name: 3-methoxy-4-hydroxycinnamic acid, English name: FerulicAcid, its chemical formula is: C10H10O4 structural formula is: Ferulic acid has an increasingly wide range of uses in the fields of medicine, food, cosmetics, etc. The above-mentioned characteristics of ferulic acid and other information are in the patent application Nos. It has been elaborated in "Extraction and Purification Process" that natural plants Chuanxiong, Angelica, Tianma, Suanzaoren, etc. contain ferulic acid. Due to the low content of ferulic acid in natural plants, the extraction process is complicated, the production cost is high, and its economic indicators are poor. In the known ferulic acid preparation or extraction and purification process, the black feet rich in crude fatty acid must fully hydrolyze t...

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Problems solved by technology

Blackfoot is a dense, high-viscosity, fat-soluble substance that is difficult to dissolve in water. Therefore, organic lower alcohols must be heated and stirred for a long time to fully hydrolyze under alkaline conditions. Organic lower alcohols participate in the dissolution of blackfoot. A large amount of organic solvents are consumed in the process, and the organic solvent tail gas produced pollutes the environment, which prolongs the process flow. In order to reduce the consumption of organic solvents and the pollution caused by organic solvents to the environment, in the preparation process of ferulic acid A solvent recovery process must be set up, increasing production costs

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