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Method for extracting natural vitamin E from byproduct residual oil

A technology of natural vitamins and vitamins, applied in organic chemistry methods, organic chemistry, organic anion exchangers, etc., can solve problems such as high environmental pollution risks, complex production equipment, and high operating vacuum

Pending Publication Date: 2022-06-21
丰益生物科技(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 2) The production equipment is complex, occupies a large area, and requires a lot of labor. Each process step requires different equipment to complete
[0011] 3) The risk of environmental pollution is high. The esterification or saponification treatment process requires a large amount of sulfuric acid or sodium hydroxide. The amount of sewage treatment after extraction of natural tocopherol is huge, and it is necessary to be equipped with high-demand sewage treatment equipment
[0012] 4) The concentration ratio and yield of the molecular distillation method are relatively high, but due to the high degree of vacuum in its operation, the requirements for equipment are high, and the equipment investment cost is expensive
[0013] At present, there is no method for preparing natural vitamin E from deodorized distillates by resin adsorption and hydrolysis, improving its purity and increasing its specific rotation.

Method used

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  • Method for extracting natural vitamin E from byproduct residual oil
  • Method for extracting natural vitamin E from byproduct residual oil
  • Method for extracting natural vitamin E from byproduct residual oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Take 1000 g of gel-type strongly basic anion exchange resin HZ-202, fully swell with 1600 mL of 95% ethanol aqueous solution, and then load it into a chromatography column, and elute the column with 2000 mL of 95% ethanol to balance the column.

[0083] Take 150 g of VES residual oil sample (from Fengyi Biotechnology Jiangsu Co., Ltd.), add 3 times the mass of 95% ethanol aqueous solution to dissolve, and load the sample. 2 -95% ethanol aqueous solution for elution, the eluent was continuously collected and detected by thin layer chromatography (TLC), the developing solvent was n-hexane-diethyl ether-acetic acid 8:2:0.2, and the eluent fraction containing tocopherol was collected, After the combination, the mixture was concentrated under reduced pressure to constant weight at 50° C. to obtain 107.99 g of vitamin E product 1.

[0084] After testing, the VES content in the sample before the resin column was 56.31wt%, the VE content was 6.11wt%, and the specific optical ro...

Embodiment 2

[0086] Take 1000 g of gel-type strongly basic anion exchange resin HZ-202, fully swell with 1600 mL of 95% ethanol aqueous solution, and then load it into a chromatography column, and elute the column with 2000 mL of 95% ethanol to balance the column.

[0087] Take 200 g of VEA residual oil sample (from Fengyi Biotechnology Jiangsu Co., Ltd.), add 3 times the mass of 95% ethanol aqueous solution to dissolve, and load the sample. The chromatographic column is first eluted with 2500 mL of 95% ethanol aqueous solution, and then 4000 mL of saturated CO 2 -95% ethanol aqueous solution for elution, the eluent was continuously collected and detected by thin layer chromatography (TLC), the developing solvent was n-hexane-diethyl ether-acetic acid 8:2:0.2, and the eluent fraction containing tocopherol was collected, After the combination, it was concentrated under reduced pressure at 50° C. to constant weight to obtain 111.90 g of vitamin E product 2.

[0088]After testing, the VEA con...

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Abstract

The invention relates to a method for extracting natural vitamin E from by-product residual oil, which comprises the following steps: contacting the by-product residual oil dissolved in an organic solvent with strongly basic anion exchange resin HZ-202, eluting the resin, collecting the eluted fraction, and drying to obtain the natural vitamin E, wherein the byproduct residual oil contains vitamin E succinate and / or vitamin E acetate. By adopting the method disclosed by the invention, not only is the natural vitamin E efficiently recovered, but also the natural vitamin E product with relatively high purity can be obtained, and in addition, the specific rotation of the obtained natural vitamin E product is obviously improved.

Description

technical field [0001] The present invention relates to a method for extracting natural vitamin E from by-product residual oil. Background technique [0002] Natural vitamin E (Vitamin E, VE), also known as tocopherol, is a fat-soluble mixed vitamin E, mainly composed of α, β, γ, δ four isomers. Natural vitamin E is a commonly used medicine and health care product, and it is one of the most important natural antioxidants. It is soluble in organic solvents such as fat and ethanol, insoluble in water, stable to heat and acid, unstable to alkali, sensitive to oxygen, and insensitive to heat, but the activity of vitamin E is significantly reduced during frying. Tocopherol can promote the secretion of sex hormones, increase the vitality and quantity of sperm in men; increase the concentration of estrogen in women, improve fertility, prevent miscarriage, and can also be used to prevent and treat male infertility, burns, frostbite, capillary bleeding, menopause syndrome, It has g...

Claims

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Application Information

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IPC IPC(8): C07D311/72B01J41/04
CPCC07D311/72B01J41/04C07B2200/07
Inventor 黄贤校邹彦平刘锦
Owner 丰益生物科技(江苏)有限公司
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