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Woody ergosterol preparation method

An ergosterol and woody technology, applied in the field of preparation of woody ergosterol, can solve problems such as abandonment or burning, waste of biomass resources, environmental pollution, etc., achieves low production cost, realizes maximum utilization, and improves commercial value Effect

Active Publication Date: 2014-07-02
张家界仙踪林农业科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large number of shavings, sawdust, sanding powder, powder and other residues are produced in eucalyptus wood, and these residues are often abandoned or burned, causing environmental pollution and a great waste of biomass resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of woody ergosterol, comprising the following steps:

[0018] (1) Extraction: According to the volume ratio V 木本原料 :V 混合溶剂 =1:0.3, mix the woody raw material with the mixed solvent, extract at a temperature of 70°C and normal pressure for 6.5 hours, then filter with seven layers of fine gauze to obtain the filtrate I; wherein the woody raw material refers to eucalyptus wood powder or camellia oleifera Shell powder; the mixed solvent is composed of benzene and petroleum ether according to the volume ratio V 苯 :V 石油醚 = 1:1 uniformly mixed organic solvent, the boiling point of petroleum ether used is 40°C;

[0019] (2) Concentration: at a vacuum of 0.04 MPa and a temperature of 45° C., the mixed solvent in the filtrate I is recovered to obtain a woody extract;

[0020] (3) cracking: according to the mass ratio m 木本抽提物 :m 催化剂 =1000:0.2, using woody extracts and catalysts to mix evenly, then thermally cracking in helium at 500°C for 40 minutes, and...

Embodiment 2

[0025] A preparation method of woody ergosterol, comprising the following steps:

[0026] (1) Extraction: According to the volume ratio V 木本原料 :V 混合溶剂 =1:0.7, mix the woody raw material with the mixed solvent, extract at a temperature of 75°C and normal pressure for 6.0 hours, then filter with seven layers of fine gauze to obtain the filtrate I; wherein the woody raw material refers to eucalyptus wood powder or camellia oleifera Shell powder; the mixed solvent is composed of benzene and petroleum ether according to the volume ratio V 苯 :V 石油醚 = 1:2 uniformly mixed organic solvent, the boiling point of petroleum ether used is 50°C;

[0027] (2) Concentration: at a vacuum of 0.04 MPa and a temperature of 40° C., the mixed solvent in the filtrate I is recovered to obtain a woody extract;

[0028] (3) cracking: according to the mass ratio m 木本抽提物 :m 催化剂 =1000:0.3, using woody extracts and catalysts to mix evenly, then thermally cracking in helium at 550°C for 20 minutes, and...

Embodiment 3

[0033] A preparation method of woody ergosterol, comprising the following steps:

[0034] (1) Extraction: According to the volume ratio V 木本原料 :V 混合溶剂 =1:1.0, mix the woody raw material with the mixed solvent, extract at a temperature of 80°C and normal pressure for 5.5 hours, then filter with seven layers of fine gauze to obtain the filtrate I; wherein the woody raw material refers to eucalyptus wood powder or camellia oleifera fruit Shell powder; the mixed solvent is composed of benzene and petroleum ether according to the volume ratio V 苯 :V 石油醚 =1:4 organic solvent uniformly mixed, the boiling point of petroleum ether used is 60°C;

[0035] (2) Concentration: under a vacuum of 0.06MPa and a temperature of 50°C, the mixed solvent in the filtrate I is recovered to obtain the woody extract;

[0036] (3) cracking: according to the mass ratio m 木本抽提物 :m 催化剂 =1000:0.4, using woody extracts and catalysts to mix evenly, then thermally cracking in helium at 550°C for 30 minut...

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Abstract

The invention discloses a woody ergosterol preparation method, which comprises the following steps of: (1) extraction; (2) condensation; (3) cracking; (4) lipophilic extraction; (5) saponification; and (6) extraction and purification to obtain the woody ergosterol, purity of which reaches more than 80%. The preparation method provided by the invention is easy to realize and convenient to operate, requires low production cost and is suitable for large-scale production. By the adoption of the preparation method, commercial values of woody resources are raised, and simultaneously utilization of woody resource economy is maximized.

Description

technical field [0001] The invention relates to a method for preparing woody ergosterol, in particular to a method for extracting and preparing ergosterol from eucalyptus wood and camellia husk. Background technique [0002] Ergosterol, an important phytosterol, is a steroid compound that exists in yeast and ergot. It is a white flake or needle crystal, soluble in benzene and chloroform, and is an important pharmaceutical and chemical raw material. When ergosterol is irradiated by ultraviolet rays, a series of changes occur to produce vitamin D series drugs, which are important raw materials for the production of steroid hormone drugs. [0003] Since Tanret isolated ergosterol from Oat ergot in 1889, people have conducted a lot of research on ergosterol. Ergosterol (ergosterol), also known as ergosterol, exists in yeast in large quantities, not only can be used in the production of drugs such as progesterone, but also ergosterol is a safe natural medicine with physiological...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J9/00
Inventor 彭万喜李碧霞邓和平李军
Owner 张家界仙踪林农业科技开发有限公司