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A method for producing natural vitamin E by using crude rice bran oil

A technology of natural vitamins and rice bran crude oil, which is applied in the fields of medicine, food, cosmetics, and vitamin E. It can solve the problems of cumbersome production steps, reduced production steps, and low production efficiency, so as to increase synergistic benefits, improve purity, and reduce The effect of production costs

Active Publication Date: 2020-05-19
四川贝泰妮生物科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for producing natural vitamin E by using crude rice bran oil. The method has simple steps and can obtain natural vitamin E with a yield of about 40% through a one-time separation and concentration step, which reduces production steps and reduces Reduce production difficulty, improve production efficiency, reduce production cost, and solve the current problems of cumbersome production steps, high production cost and low production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Put 200g of impurity-removed rice bran crude oil in a beaker, add 8g of activated carbon and 12g of anhydrous calcium chloride, stir at room temperature for 12h, and filter with a 200-mesh filter cloth to obtain crude crude oil;

[0025] (2) Put 3000 grams of 300-400-mesh activated silica gel in a large beaker, add about 2500ml of n-hexane to make a paste, and put it in a column diameter ratio (the ratio of column length to column diameter) of 8:1 by wet method. ~12:1 chromatographic column requires no air bubbles in the silica gel column;

[0026] (3) Add 200g of coarsely filtered crude oil evenly to the top of the chromatographic column, use n-hexane:ethyl acetate as a 100:1 mixed solvent, and then elute at a flow rate of 3.5ml / min, collect the 300th to The effluent within the range of 1800ml was combined to obtain the separation liquid;

[0027] (4) Transfer the above separation liquid into a vacuum pot, concentrate under reduced pressure for 35 minutes at a vac...

Embodiment 2

[0029] (1) After 200g of rice bran crude oil was extracted with n-hexane to remove impurities, 8g of activated carbon and 12g of anhydrous calcium chloride were added to the removed rice bran crude oil, stirred at room temperature for 12h, and filtered with a 200-mesh filter cloth, crude crude oil;

[0030] (2) Put 3000 grams of 300-400-mesh activated silica gel in a large beaker, add about 2500ml of n-hexane to make a paste, and put it in a column diameter ratio (the ratio of column length to column diameter) of 8:1 by wet method. ~12:1 chromatographic column requires no air bubbles in the silica gel column;

[0031] (3) Add 200g of coarsely filtered crude oil evenly to the top of the chromatographic column, use n-hexane:ethyl acetate as a 110:1 mixed solvent, and then elute at a flow rate of 3.5ml / min, collect the 300th to The effluent within the range of 1800ml was combined to obtain the separation liquid;

[0032] (4) Transfer the above separation liquid into a vacuum po...

Embodiment 3

[0034] (1) After 200g of rice bran crude oil was extracted with n-hexane to remove impurities, 8g of activated carbon and 12g of anhydrous calcium chloride were added to the removed rice bran crude oil, stirred at room temperature for 12h, and filtered with a 200-mesh filter cloth, crude crude oil;

[0035] (2) Put 3000 grams of 300-400-mesh activated silica gel in a large beaker, add about 2500ml of n-hexane to make a paste, and put it in a column diameter ratio (the ratio of column length to column diameter) of 8:1 by wet method. In the chromatographic column, it is required that there is no air bubble in the silica gel column;

[0036] (3) Add 200g of coarsely filtered crude oil evenly to the top of the chromatographic column, use n-hexane:ethyl acetate as a 90:1 mixed solvent, and then elute at a flow rate of 3.6ml / min to collect the 300- The effluent within the range of 1800ml was combined to obtain the separation liquid;

[0037] (4) Transfer the above separation liqui...

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Abstract

The invention discloses a method for producing natural vitamin E by utilizing rice bran crude oil. The method comprises the step of carrying out purification, one-time separation and one-time concentration treatment on the rice bran crude oil, wherein decoloration and dehumidification treatment needs to be carried out on the purified rice bran crude oil before being separated, and the method comprises the following concrete steps: (1) carrying out pretreatment, namely purifying the rice bran crude oil; (2) carrying out decoloration and dehumidification to obtain rough filtration crude oil; (3) carrying out one-time separation; and (4) carrying out one-time concentration. The method disclosed by the invention has the advantages that the steps are simple, the natural vitamin E with the yield being about 40% can be obtained by virtue of the steps of carrying out the one-time separation and one-time concentration, the production steps are reduced, the production efficiency is improved, the production cost is lowered, and the problems of tedious production steps, high production cost and low production efficiency at present can be solved.

Description

technical field [0001] The invention relates to the field of vitamin E production, in particular to a method for producing natural vitamin E by using crude rice bran oil, which can be used in the fields of cosmetics, medicine and food. Background technique [0002] Vitamin E is a fat-soluble vitamin. Commercial vitamin E can be divided into 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. [0003] Existing natural vitamin E is to prepare natural vitamin concentrated liquid with oil residue, vegetable oil, deodorized matter, and the method for preparing natural vitamin E concentrated liquid with vegetable oil as raw material mostly is to carry out alcohol extraction, phase separation, reflux saponification of vegetable oil, multiple extractions, molecular distillation etc. "Purification of natural vitamin E by silica gel column chromatography", "purification of natural vita...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D311/72
CPCC07D311/72
Inventor 李光灿涂杰张正周冯俊周文简朴廖忠莉
Owner 四川贝泰妮生物科技有限公司
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