Method for preparing natural vitamin E from crude oil of Maoyeshan tung tree seed

Abstract

The invention discloses a method for separating, purifying and preparing natural vitamin E from crude oil of Maoyeshan tung tree seed, which belongs to the field of medicines, foods and feeds. The method mainly comprises the steps of preparing through a chromatographic column, eluting and concentrating a solvent, treating active carbon, decompressing, drying and the like, wherein the vitamin E inthe crude oil of the Maoyeshan tung tree seed can be directly eluted, separated and purified by using the chromatographic column and a petroleum ether-ethyl acetate system through a low-pressure chromatography; after being concentrated properly, the vitamin E is treated by the active carbon; and a high-quality natural vitamin E product can be obtained by being dried at low temperature in a vacuumway. The method has the advantages that: the content of the vitamin E in the crude oil can be directly improved from about 0.1% to above 70% through a few operation steps; simultaneously, the processis simple and has a few operation steps and low equipment requirement; a high-temperature heating process is unnecessary; the separation residue can be used in other purposes of the oil of the Maoyeshan tung tree seed; the method is applicable for enterprises of different scales to product; and the method has a wide application prospect.

Description

technical field [0001] The invention belongs to the fields of medicine, food and feed, and particularly relates to a method for producing natural vitamin E by using jatropha jatropha crude oil as a raw material. Background technique [0002] Jatropha Maoye is a unique woody oil plant species in my country. It has the characteristics of wide distribution, low requirements on soil and climate, and strong adaptability. It is suitable for planting in low-quality, barren slopes, tidal flats, and mountains. , easy to promote, and easy to popularize". It is an economic crop with high yield and high economic value, and has great application value and development potential. According to data reports: Jatropha jatropha has a fruit-producing period as long as 70-100 years, and its fruit oil content is relatively high (oil production per plant can reach 200-300kg), especially its oily unsaturated fatty acid is as high as 82% or more, and it is rich in oil. Contains linoleic acid (up to...

AI Technical Summary

Problems solved by technology

However, the natural vitamin E products obtained by organic solvent extraction, urea complexation and distillation cannot meet the growing demand of the pharmaceutical and health care products market due to low purity and low biological activity; while supercritical CO 2 The equipment investment of the extraction method and the molecular distillation method is relatively large; the separation ability of the chromatography method is strong, and not only the high-purity mixed vitamin E can be separated, but also the graded product of vitamin E can be obtained; but the equipment investment of the high performance liquid chromatography is large, and maintenance High cost, not suitable for large-scale industrial production