Method for removing heavy metal arsenic from pleurotus ostreatus extract

An extract and heavy metal technology, applied in pharmaceutical formulations, food science, plant raw materials, etc., can solve the problems of inability to remove arsenic to the required removal process, high cost, and complexity, achieving low cost, reducing the amount of auxiliary materials, and simple operation. Effect

Pending Publication Date: 2020-06-02
陕西嘉禾药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problem that the existing method for removing heavy metal arsenic in Pleurotus ostreatus extract cannot be removed to meet the requirements or the removal process is too complicated and the cost is too high, and to provide a method for removing heavy metal arsenic in Pleurotus ostreatus extract Methods

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Obtain Pleurotus ostreatus extract

[0031] Get the flat mushroom raw material, add purified water of 10 times the quality of the flat mushroom raw material to it and extract under boiling, extract 3 times in total, each time is 2h, combine the 3 extractions and filter, collect the first filtrate and Concentrating to a specific gravity of 1.05 times to obtain the concentrated Pleurotus ostreatus extract;

[0032] 2) preparation of chitosan clarifying agent

[0033] Add glacial acetic acid of 3% volume of purified water to the purified water to prepare an aqueous acetic acid solution, add chitosan to the aqueous acetic acid solution, and prepare a chitosan clarifying agent with a mass concentration of 1%;

[0034] 3) Clarify and remove impurities from Pleurotus ostreatus extract

[0035] Under the condition of 70 DEG C, add the chitosan clarifying agent that step 2) gained mass concentration is 1% to step 1) in the obtained Pleurotus ostreatus extract, stir and carr...

Embodiment 2

[0041] 1) Obtain Pleurotus ostreatus extract

[0042] Get the raw material of Pleurotus ostreatus, add purified water of 12 times the amount of the raw material of Pleurotus ostreatus to it and extract under boiling, extract altogether 4 times, each time is 3h, combine 4 extractions and filter, collect the first filtrate and make it Concentrating to a specific gravity of 1.1 times to obtain the concentrated Pleurotus ostreatus extract;

[0043] 2) preparation of chitosan clarifying agent

[0044] Add glacial acetic acid of 4% volume of purified water to the purified water to prepare an aqueous acetic acid solution, add chitosan to the aqueous acetic acid solution, and prepare a chitosan clarifying agent with a mass concentration of 1.2%;

[0045] 3) Clarify and remove impurities from Pleurotus ostreatus extract

[0046] Under the condition of 75 DEG C, add the chitosan clarifier that step 2) gained mass concentration is 1.2% in the obtained Pleurotus ostreatus extract soluti...

Embodiment 3

[0052] 1) Obtain Pleurotus ostreatus extract

[0053] Get the flat mushroom raw material, add purified water of 11 times the amount of the flat mushroom raw material quality to it and extract under boiling, extract altogether 3 times, each time is 2.5h, merge 3 extractions and filter, collect the first filtrate and It is concentrated to a specific gravity of 1.08 times to obtain a concentrated Pleurotus ostreatus extract;

[0054] 2) preparation of chitosan clarifying agent

[0055] Add glacial acetic acid of 3% volume of purified water to the purified water to prepare an aqueous acetic acid solution, add chitosan to the aqueous acetic acid solution, and prepare a chitosan clarifying agent with a mass concentration of 1%;

[0056] 3) Clarify and remove impurities from Pleurotus ostreatus extract

[0057] Under the condition of 70 DEG C, add the chitosan clarifying agent that step 2) gained mass concentration is 1% to step 1) in the obtained Pleurotus ostreatus extract, stir ...

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PUM

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Abstract

The invention relates to a heavy metal removing method, in particular to a method for removing harmful heavy metal arsenic from a pleurotus ostreatus extract. In order to solve the technical problem that according to an existing method for removing heavy metal arsenic from a pleurotus ostreatus extract, the arsenic cannot be removed to the point where the requirements are met or a removing processis too complex and overhigh in cost, the method for removing the heavy metal arsenic from the pleurotus ostreatus extract is provided. The method comprises the following steps: (1) taking a pleurotusostreatus extract solution; (2) producing a chitosan clarifying agent; (3) conducting clarifying and purifying on the pleurotus ostreatus extract solution; (4) removing the arsenic by means of slakedlime; and (5) removing the arsenic by means of neutral activated aluminium oxide. By means of the method, the content of the heavy metal arsenic in the pleurotus ostreatus extract can be reduced to be in an allowed range, and the method has the advantages of simple operation, a low cost, an excellent removing effect and the like, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for removing heavy metals, in particular to a method for removing harmful heavy metal arsenic in extracts of oyster mushrooms. Background technique [0002] Pleurotus otreatus, also known as Pleurotus otreatus, Pleurotus pectinosa, Oyster Mushroom, Black Peony Mushroom, is also known as Pleurotus ostreatus in Taiwan, China, and is a species of Pleurotaceae under the order Basidiomycetes. Pleurotus ostreatus is a wood saprophytic fungus. Mycelium secretes a variety of enzymes, which can decompose cellulose, hemicellulose, lignin, starch, pectin and other components into nutrients such as monosaccharides or disaccharides, which can be absorbed as carbon sources. Utilization can also directly absorb organic acids and alcohols, etc., but cannot directly utilize inorganic carbon. Pleurotus ostreatus uses inorganic nitrogen (ammonium salt, nitrate, etc.) and organic nitrogen compounds (urea, amino acid, protein, etc.) as ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L5/20A23L31/00A61K36/07
CPCA23L5/27A23L5/276A23L31/00A61K36/07A23V2002/00A61K2236/331A61K2236/39A61K2236/53A23V2250/208
Inventor 李宁胡洪来邓尚勇刘玉水雨航
Owner 陕西嘉禾药业有限公司
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