New extracting process for natural vitamin E

A natural vitamin and new process technology, applied in the direction of organic chemistry, can solve the problems of low production cost, low vitamin E concentration, low product yield, etc.

Inactive Publication Date: 2005-10-19
JIANGXI TEEMHIGH PHARMA
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Problems solved by technology

CN1034367A discloses a process for separating vitamin E from refined vegetable oil residue. The process of the method

Method used

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Embodiment Construction

[0014] The present invention adopts the following process steps to extract natural vitamin E

[0015] (1) Separation of free fatty acid esterification

[0016] Put the deodorized distillate whose mixed vitamin E content is less than 5% in the reaction kettle, add hydrochloric acid with a concentration of 30% according to 6% of its weight, hydrolyze the reaction temperature at 50 ° C, acid hydrolyze for 2 hours, and then press its total weight Add methanol 8 times, distill methanol, wash with water after precipitation until neutral, the neutral esterification solution enters high vacuum wiped film short-path distillation, vacuum 30-60pa, temperature 180-200℃, and separates and removes fatty acid methyl ester to obtain Pre-esterified oil.

[0017] (2) Saponification and esterification

[0018] Drop into methanol to dilute by 1: 1 of pre-esterified oil weight, then put into industrial caustic soda to carry out saponification by 30% of pre-esterified oil weight, saponification t...

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Abstract

The new natural vitamin E extracting process has the technological steps of: esterification and separation of free fatty acid; saponification and esterification of pre-esterified oil; separation of sterol; separation of methyl fatty ester; and adsorbing separation. The present invention is suitable for the extraction of deodorized vegetable oil distillate with relatively low vitamin E content and preparation of natural vitamin E product with higher purity, and has high product yield and product purity over 95 %.

Description

technical field [0001] The invention relates to a new process for extracting natural vitamin E. Background technique [0002] Vitamin E (Vitamin E) is a fat-soluble vitamin, which is widely used in medicine, health products, food, cosmetics and feed industries due to its good pharmacological effects, nutritional value and antioxidant effect. Commercial vitamin E can be divided into There are two types of synthetic vitamin E and natural vitamin E. Natural vitamin E is made from the oil of green plants rich in vitamin E and processed through appropriate processes. Compared with synthetic vitamin E, natural vitamin E has higher biological activity And edible safety, become the hot product that races to develop in recent years, there are also many reports on the extraction process of natural vitamin E at home and abroad, CN1228427A discloses a kind of supercritical CO 2 A method for extracting and separating natural vitamin E from deodorized soybeans ...

Claims

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Application Information

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IPC IPC(8): C07D311/72
Inventor 范友灵万金梅莫荣喜
Owner JIANGXI TEEMHIGH PHARMA
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