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A method for industrially extracting natural vitamin E

A natural vitamin, industrial technology, applied in the direction of organic chemistry, etc., can solve the problems of high fatty acid in soybean deodorization, low efficiency, affecting urea complexation, etc., to achieve the effect of easy operation and reducing damage

Active Publication Date: 2016-06-08
FUJIAN GLANNY BIO ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] "Extraction of Tocopherol in Soybean Deodorized Species by Urea-Saponification", Journal of Shanghai University (Natural Science Edition), 2001, 7(4): 331-333. It is reported that the deodorized soybeans are complexed with urea to remove fat, and then saponified Extract tocopherol; the disadvantage of this method is that there are more fatty acids in the soybean deodorized product, which seriously affects the complexation of urea, and the efficiency is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A: Pretreatment: Take 250 kg of soybean oil scraps containing 4%-8% natural vitamin E, and put them into the scraped film evaporator for dehydration and deodorization. Between ℃; speed 130rpm; vacuum pumping for 5 hours; B: Take 100 grams of the oil obtained from the deodorization and dehydration treatment in the above steps, add 200 grams of ethanol to dissolve; C: add 0.2 grams of zinc chloride, 10 milliliters of tetrahydropyridine D: then filter to obtain 15 grams of light yellow solid; E: dissolve the filtrate in 75 grams of ethanol; F: add 5 milliliters of oxalic acid solution with a concentration of 0.3% by weight, at 45 Stir at ℃ for 10 hours; G: then filter out the insoluble sterols; H: evaporate the mother liquor to ethanol to obtain 9 grams of oily substance with a vitamin E content of 50.8%.

Embodiment 2

[0021] A: Pretreatment: Take 250 kg of soybean oil scraps containing 4%-8% natural vitamin E, and put them into the scraped film evaporator for dehydration and deodorization. Between ℃; rotating speed 130rpm; vacuum pumping for 5 hours; B: Take 100 grams of the oil obtained from the deodorization and dehydration treatment in the above steps, add 600 grams of ethanol to dissolve; C: add 1 gram of zinc chloride, 15 milliliters of tetrahydropyridine Fur, stir at room temperature for 50 hours; D: then filter to obtain 10 grams of light yellow solid; E: dissolve the filtrate in 100 grams of ethanol; F: add 5 milliliters of acetic acid solution with a concentration of 0.8% by weight, at 50 Stir at ℃ for 11 hours; G: Then filter out insoluble sterols; H: Evaporate the mother liquor to ethanol to obtain 8 grams of oil with a vitamin E content of 87%.

Embodiment 3

[0023] A: Pretreatment: Take 250 kg of soybean oil scraps containing 4%-8% natural vitamin E, and put them into the scraped film evaporator for dehydration and deodorization. Between ℃; rotating speed 130rpm; vacuum pumping for 5 hours; B: take 100 grams of the oil obtained from the deodorization and dehydration treatment in the above steps, add 400 grams of ethanol to dissolve; C: add 0.5 grams of zinc chloride, 13 milliliters of tetrahydropyridine Furnish, stir at room temperature for 50 hours; D: then filter to obtain 11 grams of light yellow solid; E: dissolve the filtrate in 70 grams of ethanol; F: add 10 milliliters of acetic acid solution with a concentration of 0.3% by weight, at 55 Stir at ℃ for 12 hours; G: then filter out the insoluble sterols; H: evaporate the mother liquor to ethanol to obtain 7.8 g of oily substance with a content of 85%.

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Abstract

The invention provides a method for industrial extraction of natural vitamin E. The method is characterized by including the steps of: A. subjecting soybean oil leftover containing 4%-8% of natural vitamin E to vacuum deodorization dehydration treatment in a wiped-film evaporator; B. then adding a certain amount of ethanol into the treated oily matter for dissolution; C. then adding a catalytic amount of zinc chloride and a specified amount of tetrahydropyrane, and performing stirring at room temperature; D. filtering the precipitate; E. then dissolving the precipitate in ethanol; F. adding a catalytic amount of an organic weak acid water solution to carry out reaction at 45-55DEG C; G. at the end of the reaction, conducting filtering to remove sterol; and H. concentrating the mother liquor dry, thus obtaining natural vitamin E. The method provided by the invention can avoid multistage molecular rectification, and reduces the damage of long-time high temperature and high pressure on vitamin E. The natural vitamin E product extracted by the method provided by the invention has an effective content of greater than or equal to 50%. The employed solvent can be recycled and reused repeatedly. Being convenient and easy to operate, the method is suitable for industrialized production.

Description

technical field [0001] The invention relates to a process for extracting natural vitamin E, in particular to a process for extracting natural vitamin E from soybean oil leftovers. Background technique [0002] Natural vitamin E (tocopherol) is mainly found in vegetable oil seeds, and soybeans, corn germs, cottonseeds, and sunflower seeds are rich in vitamin E. Vitamin E has unique physiological functions, including elimination of free radicals in humans and animals, protection of biofilm stability, anti-aging, anti-tumor, prevention and treatment of cardiovascular diseases; maintenance and enhancement of reproductive function, promotion of gonad development, improvement of reproductive function, natural Vitamin E is more and more widely used in food, feed, health products and other products. [0003] At present, the technological methods for extracting natural vitamin E mainly include: [0004] J.Am.OilChem.Sec., 2004, 81: 339-345 reported that the soybean deodorized produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D311/72
CPCC07D311/72
Inventor 蓝晓春
Owner FUJIAN GLANNY BIO ENG
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