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...

Examples

Embodiment Construction

[0022] The following examples will further illustrate the method provided by the invention.

[0023] Implementation example

[0024] (1) Put 2000 grams of 100-300-mesh silica gel in a beaker, add about 1500 mL of petroleum ether, and wet-pack it into a chromatographic column with a column diameter ratio of 5:1-10:1.

[0025] (2) Add 200mL of Jatropha crude oil to the top of the chromatographic column, elute with petroleum ether: ethyl acetate = 75:1, control the flow rate at about 4.5mL / min, and collect the bright yellow and yellow-green effluent Until an orange-yellow effluent appears (collect the effluent with a volume ranging from 100 mL to 1000 mL), and concentrate under reduced pressure at 30°C until there is no mobile phase to obtain about 2 mL of an oily primary fraction. Repeated separation and purification by this method to obtain about 20mL oily primary fraction.

[0026] (3) Put 1200 grams of 200-400 mesh silica gel in a beaker, add about 1000 mL of petroleum ethe...

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...

Examples

Embodiment Construction

[0022] The following examples will further illustrate the method provided by the invention.

[0023] Implementation example

[0024] (1) Put 2000 grams of 100-300-mesh silica gel in a beaker, add about 1500 mL of petroleum ether, and wet-pack it into a chromatographic column with a column diameter ratio of 5:1-10:1.

[0025] (2) Add 200mL of Jatropha crude oil to the top of the chromatographic column, elute with petroleum ether: ethyl acetate = 75:1, control the flow rate at about 4.5mL / min, and collect the bright yellow and yellow-green effluent Until an orange-yellow effluent appears (collect the effluent with a volume ranging from 100 mL to 1000 mL), and concentrate under reduced pressure at 30°C until there is no mobile phase to obtain about 2 mL of an oily primary fraction. Repeated separation and purification by this method to obtain about 20mL oily primary fraction.

[0026] (3) Put 1200 grams of 200-400 mesh silica gel in a beaker, add about 1000 mL of petroleum ethe...