Fine purification method for sterol

A purification method and sterol technology, applied in the field of sterol purification, can solve the problems of narrow processing range of crude sterol, narrow range of crude sterol, long operation process, etc., and achieve the effects of reducing pollution and environmental hidden dangers, being easy to purchase, and improving yield

Inactive Publication Date: 2008-08-20
NINGBO DAHONGYING BIO ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product obtained by this method has high precision, and the sterol content can reach 97.5%, but the operation process is too long, the yield is low, and the range of the raw material crude sterol to be processed is narrow, and the crude sterol with a sterol content of 50-55% can only be processed; The acetone solvent used is a state-monitored drug, and the relevant unit needs to issue a precursor drug purchase certificate before it can be purchased and used. It is important that ace

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] Example 1

[0012] According to 100Kg mass content is the crude product sterol of 70% (this crude product sterol is produced by Ningbo Dahongying Company, the crude product sterol of different content in the following examples is purchased by the same company), joins in the 150Kg sherwood oil solvent, fully stirs, Make it homogenized, then filter with plate and frame, take the solid phase I; carry out distillation and recovery of the liquid phase, and pour the residue liquid into the raw material of soybean oil deodorization distillate.

[0013] For the second washing, add 100Kg of solid phase I to 150Kg of petroleum ether solvent, stir well, then filter with plate and frame, and take solid phase II; the liquid phase can be washed once with petroleum ether.

[0014] According to the solid phase II 100Kg, pour into the dissolution kettle, add 500Kg 95% ethanol, heat and stir, when the temperature reaches 75°C, add activated carbon, the amount of activated carbon added is...

Example Embodiment

[0019] Example 2:

[0020] A method for refining natural phytosterols, characterized in that the steps are as follows:

[0021] Add 100Kg of 36.3% crude sterols into 300Kg of petroleum ether solvent, fully stir to make it homogenized, and then plate and frame filter to obtain solid phase I and liquid phase; the liquid phase is recovered by distillation, and the residue is poured into soybean oil deodorization distillation In raw materials.

[0022] For the second washing, add 100Kg of solid phase I to 300Kg of petroleum ether solvent, stir well, and then filter with plate and frame to obtain solid phase II and liquid phase; the liquid phase can be washed once with petroleum ether.

[0023] According to the solid phase II 100Kg, pour it into the dissolution kettle, add 500Kg of 95% ethanol, heat and stir, when the temperature reaches 75°C, add 0.5% activated carbon of the quality of the solid phase II, stir at constant temperature for 0.5 hours, and use a sealed stainless stee...

Example Embodiment

[0029] Example 3:

[0030] A method for refining natural phytosterols, characterized in that the steps are as follows:

[0031] (1) join 150Kg sherwood oil solvent by the crude product sterol of 52% by 100Kg mass content, fully stir, filter and obtain solid phase I and liquid phase; Liquid phase carries out distillation recovery, and slag liquid is poured into soybean oil deodorization distillate raw material.

[0032] (2) Add 100Kg of solid phase I into 150Kg of petroleum ether solvent, stir well, and plate and frame filter to obtain solid phase II and liquid phase; the liquid phase can be recycled for one-time washing.

[0033] (3) According to the solid phase II 100Kg, pour it into the dissolving kettle, add 500Kg 95% ethanol, heat and stir, when the temperature reaches 75°C, add 0.5% activated carbon of the quality of the solid phase II, stir at constant temperature for 0.5 hours, use a sealed Type stainless steel cloth bag filter for hot filtration, and take the filtrat...

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PUM

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Abstract

The invention relates to a refining method of high content natural plant sterol, the natural plant crude sterol with the weight percentage of 35 percent to 80 percent weight content is selected and added in petroleum ether or other mixed solvents for stirring and filtration, a solid phase I is selected, the solid phase I is added in the petroleum ether or other mixed solvents for evenly stirring and filtration, a solid phase II is taken and added in ethanol solution for heating and stirring, activated carbon is added, the heating temperature is 60 to 80 DEG C, the holding time is 0.5 to 2 hours, heat filtration is carried out, then slow stirring and slow cold separation crystallization are carried out, the solution is subject to constant temperature filtration after cold separation, and the filtrate is dried by constant temperature air blow to obtain refined plant sterol. The technique has short route, simple operation, wide processing range of the crude sterol, small energy consumption and low cost, yield and purity both achieve higher standards, thus providing a certain degree of protection for increasing the economic benefit of enterprises.

Description

technical field [0001] The invention relates to the field of sterol refining methods, in particular to a method for refining crude sterols. Background technique [0002] Natural phytosterols are natural active substances that exist in plants, widely distributed in nature, and are substances with physiological value. They are used in medicine, cosmetics, animal growth agents and their paper processing, printing, textile, food and other fields Has a wide range of uses. [0003] There are different methods for extracting phytosterols, but the principle is to use the differences in the chemical properties, physical properties and biochemical reactions of the raw materials. The first type of method uses saponification and extraction to obtain unsaponifiable matter to obtain sterols. This process is simple to operate, but the amount of solvent used is large, the recovery pressure is high, and the yield of sterols is not high; the second type of method uses the complexing properti...

Claims

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Application Information

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IPC IPC(8): C07J75/00
Inventor 冯震董斌钢包方杰盛一尚
Owner NINGBO DAHONGYING BIO ENG
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