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Phytosterol preparation method and system

A preparation system, wood sterol technology, applied in the field of phytosterol preparation, can solve the problems of low yield of phytosterol products, deep color of sterol products, difficulty in solvent recovery, etc., and achieve the effect of bright color, high separation efficiency and high purity

Inactive 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] The industrial production of domestic phytosterols has the disadvantages of low product yield, difficult solvent recovery, large solvent consumption, and too dark color of sterol products

Method used

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  • Phytosterol preparation method and system
  • Phytosterol preparation method and system
  • Phytosterol preparation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment provides one of the embodiments of the preparation method of wood sterol, which includes:

[0031] The tall oil pitch and caustic soda water with a mass concentration of 15% are respectively injected into the stirring reaction unit 700 from the feed port 701, and the stirring reaction unit 700 is fully stirred and mixed evenly, wherein the quality of the tall oil pitch and the aqueous caustic soda solution is controlled The volume ratio is 1g:5ml. The temperature inside the jacket of the stirring reaction unit 700 was adjusted so that the tall oil pitch and the caustic soda aqueous solution were reacted at 130° C. for 4 hours. After the reaction is completed, 25% citric acid aqueous solution is added to the stirring reaction unit 700 again and stirred until the pH of the mixed solution is neutral to obtain a mixed reaction solution. The reaction mixture solution is discharged from the discharge port 702, and is input into the static unit 800 through the...

Embodiment 2

[0074] Mix tall oil pitch and caustic soda water with a mass concentration of 15%, the mass volume ratio of tall oil pitch and caustic soda aqueous solution is 1g:10ml, react at 140°C for 6h, add 20% citric acid aqueous solution and stir until the mixture pH to neutral, stand still, take the upper oil layer for distillation, the feed rate is 6ml / min, the distillation temperature is 90°C, the preheating temperature is 65°C, the condensation temperature is 6°C, the vacuum degree is 30Pa, and the speed of the scraping film is 350r / min, get the concentrate.

[0075] The concentrate was dissolved in a mixture of methanol and methyl ethyl ketone, crystallized, filtered, and crude wood sterol was collected, which was melted and granulated at 180°C to obtain a wood sterol product.

[0076] The color of wood sterol products is measured using some methods in GB / 22460-2008 "Determination of Lovibond Color of Animal and Vegetable Fats and Fats". According to the depth of the wood sterol ...

Embodiment 3

[0080]Mix tall oil pitch and caustic soda water with a mass concentration of 14%, the mass volume ratio of tall oil pitch and caustic soda aqueous solution is 1g:6ml, react at 150°C for 3h, add 22% citric acid aqueous solution and stir until the mixture pH to neutral, stand still, take the upper oil layer for distillation, the feed rate is 4ml / min, the distillation temperature is 90°C, the preheating temperature is 70°C, the condensation temperature is 8°C, the vacuum degree is 30Pa, and the speed of the scraping film is 350r / min, get the concentrate.

[0081] The concentrate was dissolved in a mixture of methanol and methyl ethyl ketone, crystallized, filtered, and crude wood sterol was collected to obtain a crude wood sterol product, which was melted and granulated at 170°C to obtain a wood sterol product.

[0082] The color of wood sterol products is measured using some methods in GB / 22460-2008 "Determination of Lovibond Color of Animal and Vegetable Fats and Fats". Accord...

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Abstract

The invention discloses a phytosterol preparation method and system. The preparation method comprises the steps of mixing tall oil pitch with caustic soda water, reacting at 110 to 160 DEG C for 3 to6 hours, adding a citric acid aqueous solution and stirring until the pH of the mixed liquor reaches neutral, allowing the mixed liquor to stand, and taking the upper layer to be subjected to distillation to obtain a sterol concentrate; dissolving the sterol concentrate in an organic solvent, performing crystallization, filtering, and collection to obtain a crude phytosterol product, and then obtaining a phytosterol product by melt granulation. The phytosterol preparation method and system provided by the invention have the advantages that the phytosterol is high in yield, high in purity, andbright in color, the reaction is mild and efficient, the operation temperature is low and the separation efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of phytosterol preparation, and in particular relates to a preparation method and system of wood sterol. 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 physiological functions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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