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Preparation method and system of sterol ester

A preparation system and sterol ester technology are applied in the preparation of phytosterol esters and in the field of preparation of sterol esters, and can solve the problems of deep color, low purity and high acid value

Active Publication Date: 2018-11-30
JIANGSU CONAT BIOLOGICAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Domestic research on phytosterol esters started late, and industrial production has the disadvantages of low purity, high acid value, and too dark color

Method used

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  • Preparation method and system of sterol ester
  • Preparation method and system of sterol ester
  • Preparation method and system of sterol ester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0031] The deodorized distillate of corn oil and fatty acid methyl ester are placed in the heat conduction device 201a of the first heat exchange unit 200 at a mass ratio of 7:1 for mixing, so that they are completely dissolved at 85°C to obtain the first mixed solution;

[0032] Transfer the first mixed liquid to the reaction unit 800, the reaction unit 800 can use a reaction kettle, and adjust the temperature value in its jacket, so that the first mixed liquid is gradually heated to 200 ° C, and vacuumized to obtain the second mixed liquid ;

[0033] Add sodium methoxide methanol solution with a mass fraction of 40% into the reaction unit 800. The amount of sodium methoxide added is 2% of the mass of the mixed solution, and the vacuum state is kept to continue the reaction for 4 hours. After the reaction, the mixed solution is cooled to 120° C. and kept at 1.5 hours, then cooled to 100°C;

[0034] Add pure water to the reacted material to fully wash, the washing liquid is d...

Embodiment 2

[0072] Mix corn oil deodorized distillate and fatty acid methyl ester at a mass ratio of 8:1, dissolve completely at 90°C, then heat up to 200°C, and vacuumize to obtain a mixed solution; add sodium methoxide methanol with a mass fraction of 50% solution, the amount of sodium methoxide added is 3% of the mass of the mixed solution, and the reaction is continued for 8 hours in a vacuum state. After the reaction, the mixed solution is cooled to 120° C. for 2 hours, and then cooled to 90° C. Add pure water to the reacted material to fully wash, the washing liquid is discharged into the waste water, and the oil layer is washed with water for many times until neutral. The washed material is vacuumed to remove moisture. Add activated clay to the washed and dehydrated material, stir at 80°C for about 60 minutes under vacuum, with a stirring speed of 200r / min, transfer to a filter to filter out the clay, and distill at 20Pa and 200°C to obtain the finished product of sterol ester . ...

Embodiment 3

[0077] Mix soybean oil deodorized distillate and fatty acid methyl ester at a mass ratio of 8:1, dissolve completely at 85°C, heat up to 180°C, and vacuumize to obtain a mixed solution; add 40% sodium methoxide methanol For the solution, the amount of sodium methoxide added is 2% of the mass of the mixed solution, and the reaction is continued for 6 hours in a vacuum state. After the reaction, the mixed solution is cooled to 115° C. for 2 hours, and then cooled to 110° C. Add pure water to the reacted material to fully wash, the washing liquid is discharged into the waste water, and the oil layer is washed with water for many times until neutral. The washed material is vacuumed to remove moisture. Add activated clay to the washed and dehydrated material, stir at 90°C for about 50 minutes under vacuum, and the stirring speed is 200r / min, transfer to a filter to filter out the clay, and distill at 50Pa and 210°C to obtain the finished product of sterol ester .

[0078] The col...

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Abstract

The invention discloses a preparation method and system of sterol ester. The preparation method comprises the following steps: mixing phytosterol and fatty acid methyl ester, heating until the mixtureis completely dissolved, then heating to 160 to 220 DEG C, vacuumizing, adding a sodium methoxide methanol solution, keeping a vacuum state, continuously reacting for 4 to 8 hours, after reaction, cooling in a gradient manner, and thus obtaining a reacted material; and washing the reacted material until an oil layer is neutral, adding activated clay, stirring, filtering the activated clay, distilling at the temperature of 190 to 210 and under the atmospheric pressure of 0 to 50 Pa, and thus obtaining a sterol ester finished product. The plant sterol ester prepared by the method provided by the invention is low in acidic value, high in purity, bright in color, mild and efficient in reaction, and capable of meeting the environment-friendly chemistry characteristics.

Description

technical field [0001] The invention belongs to the technical field of preparation of phytosterol esters, and in particular relates to a preparation method and system of phytosterol esters. Background technique [0002] Vegetable oil is one of the foods rich in phytosterol content, and the content of phytosterol in corn oil is relatively high. This product is white powder, and can also be dissolved in oil in the form of ester. Phytosterols are divided into three categories: 4-non-methyl sterol, 4-methyl sterol and 4,4'-dimethyl sterol. The non-methyl sterol mainly includes β-sitosterol, stigmasterol, campesterol and brassicasterol, etc. , which mainly exist in the seeds of plants. The structure of phytosterols is basically similar to that of animal sterols. The only difference is the number of methyl groups attached to the c-4 position and the difference in the side chains at the c-11 position. It is these side chains Slight differences in the body lead to different physio...

Claims

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Application Information

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IPC IPC(8): C07J9/00
CPCC07J9/00
Inventor 陈其林吴正章方华郭春荣张鹏
Owner JIANGSU CONAT BIOLOGICAL PROD
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