New separation technology of vitamin E, sterol and sterol ester in vegetable oil deodorization distillate

A technology for deodorizing distillate and vegetable oil, applied in fermentation and other directions, can solve the problems of high labor intensity, many operations, environmental pollution, etc., and achieve the effects of being beneficial to recycling and utilization, small loss of vitamin E, and no environmental pollution.

Inactive Publication Date: 2005-11-09
HEFEI UNIV OF TECH
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Problems solved by technology

Although the invention patent with the publication number CN1563399 uses enzyme esterification technology and conventional distillation technology, it does not involve the separation of active components in deodorized distillate, and there is a single separation component
[0005] At present, the utilization of vegetable oil deodorization distillates mainly focuses on the use of strong acid and strong base to catalyze esterification, and the use of high vacuum distillation or supercritical extraction technology to separate vitamin E and sterols. This process is relatively mature and requires simple equipment. However, the whole process There are many unit operations, high labor intensity and serious environmental pollution
Moreover, the product purity is low, and the product is single

Method used

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  • New separation technology of vitamin E, sterol and sterol ester in vegetable oil deodorization distillate

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Embodiment

[0029] see figure 1 , using rapeseed oil deodorization distillate as raw material, directly separate sterols by dynamic crystallization method, then adopt lipase technology to replace strong acid and strong base catalysis under normal temperature and pressure, use molecular distillation technology as separation method to separate crude sterol esters, and distill The fatty acids and neutral oils in the effluent are converted into fatty acid methyl esters, and then molecular distillation is used to obtain biodiesel and vitamin E, so as to realize the green separation and comprehensive utilization of oil by-products.

[0030] The specific process steps are as follows:

[0031] The first step is to take about 200g of rapeseed oil deodorization distillate and dissolve it in 500-600ml of acetone-methanol mixed solvent (4:1, v / v), start at 45-50°C, slowly cool down and crystallize to - At about 5°C, the crystallization time was 20 hours, and the crude sterols were separated by sucti...

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Abstract

A process for separating VE, sterol and sterolester from the deodored distillate of plant oil features that the sterol is separated out by directly dynamic crystallizing, the lipase is used to convert the fatty acid in oil and the neutral oil to methylester of fatty acid, and the molecular distillation is used to separate high-purity methylester of fatty acid and VE.

Description

technical field [0001] The invention relates to a method for separating and treating effective components of vegetable oil deodorization distillates, in particular to a separation process for fatty acid methyl esters, sterols, sterol esters and vitamin E in vegetable oil deodorization distillates. Background technique [0002] Vegetable oil deodorization distillates are mixtures of fractions obtained during the deodorization of vegetable oils. It mainly contains a large amount of fatty acids, tocopherols, sterols and sterol esters, glycerides, vitamin E and other components. [0003] Natural vitamin E has many important physiological functions such as anti-free radicals, anti-aging, improving the physical and immune functions of humans and animals, and has no toxic and side effects on the human body. Its long-term use safety is much higher than that of synthetic vitamin E. Therefore, it is used in food, In the nutraceutical industry, natural vitamin E is widely favored. St...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P17/06
Inventor 姜绍通邵平潘丽军罗水忠赵妍嫣李岩
Owner HEFEI UNIV OF TECH
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