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Extraction method of seaweed extract

A seaweed extract, seaweed technology, applied in biochemical equipment and methods, food extraction, preservation of food ingredients as antimicrobials, etc., can solve the problems of long extraction cycle, insufficient degradation of polysaccharides, etc., and achieve stable emulsification system. , the effect of enhancing fluidity, reducing solvent consumption and equipment investment

Inactive Publication Date: 2020-02-21
高治伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for extracting seaweed extract, which solves the problems of long extraction period and insufficient degradation of polysaccharides in seaweed existing in the prior art

Method used

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Examples

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Effect test

preparation example Construction

[0022] A preparation method of seaweed extract, specifically implemented according to the following steps:

[0023] Step 1, remove the algae and foreign matter from the seaweed, and then clean it;

[0024] In step 2, the seaweed cleaned in step 1 is cleaned, minced, ground and homogenized in a dilute acid solution; wherein the dilute acid solution is one or more of sulfuric acid, nitric acid or acetic acid; the quality of the dilute acid solution is seaweed 1-3 times the mass, soaking time is 2-5 hours;

[0025] Step 3, cooking the seaweed slurry prepared in step 2 at an absolute pressure of 1-5 MPa and a temperature of 117-123°C for 0.5-2 hours to obtain a seaweed decomposition liquid;

[0026] Step 4, adding lye to the seaweed decomposition solution prepared in step 3 to adjust the pH value to 12.0-14.0, and degrading it for 1-2 hours at a temperature of 40-50°C and a pressure of 1.5MPa; the lye calcium hydroxide and potassium carbonate One or more of , sodium carbonate an...

Embodiment 1

[0030] A preparation method of seaweed extract, specifically implemented according to the following steps:

[0031] Step 1, remove the algae and foreign matter from the seaweed, and then clean it;

[0032] In step 2, the seaweed cleaned in step 1 is cleaned, minced, ground and homogenized in a dilute acid solution; wherein the dilute acid solution is one or more of sulfuric acid, nitric acid or acetic acid; the quality of the dilute acid solution is seaweed 1 times the mass, soaking time is 2 hours;

[0033] Step 3, cooking the seaweed slurry prepared in step 2 at an absolute pressure of 1 MPa and a temperature of 117° C. for 0.5 h to obtain a seaweed decomposition liquid;

[0034] Step 4, adding lye to the seaweed decomposition solution prepared in step 3 to adjust the pH value to 12.0, and degrading it at a temperature of 40°C and a pressure of 1.5MPa for 1 hour; wherein the lye calcium hydroxide, potassium carbonate, sodium carbonate and bicarbonate One or more of sodium;...

Embodiment 2

[0038] A preparation method of seaweed extract, specifically implemented according to the following steps:

[0039] Step 1, remove the algae and foreign matter from the seaweed, and then clean it;

[0040] In step 2, the seaweed cleaned in step 1 is cleaned, minced, ground and homogenized in a dilute acid solution; wherein the dilute acid solution is one or more of sulfuric acid, nitric acid or acetic acid; the quality of the dilute acid solution is seaweed 3 times the mass, the immersion time is 5 hours;

[0041] Step 3, cooking the seaweed slurry prepared in step 2 at an absolute pressure of 5 MPa and a temperature of 123° C. for 2 hours to obtain a seaweed decomposition liquid;

[0042] Step 4, adding lye to the seaweed decomposition solution prepared in step 3 to adjust the pH value to 14.0, and degrading it at a temperature of 50°C and a pressure of 1.5MPa for 2 hours; wherein the lye calcium hydroxide, potassium carbonate, sodium carbonate and bicarbonate One or more o...

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PUM

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Abstract

The invention discloses a preparation method of a seaweed extract, which specifically comprises the following steps: removing miscellaneous algae and foreign matters from seaweed, performing cleaning,then cleaning the material in a dilute acid solution, mincing, grinding, homogenizing, and cooking to obtain a seaweed decomposition solution; adding alkali liquor into the seaweed decomposition liquid to adjust the pH value; degrading, then adding a surfactant and an ethanol solution, reacting the mateirals to obtain a mixed solution a, adjusting the temperature, adding lysozyme, fully stirring,then adding one or a mixture of more of pectate lyase, polygalacturonase, pectate lyase and pectate esterase, fermenting the material, and filtering to obtain the seaweed extract. According to the extraction method of the seaweed extract, the problems that in the prior art, the extraction period is long, and polysaccharide in seaweed cannot be fully degraded are solved.

Description

technical field [0001] The invention belongs to the technical field of plant extraction methods, and relates to a method for extracting seaweed extracts. Background technique [0002] In recent years, the development and high-value application of seaweed active substances have set off a research boom. Seaweed polyphenols are the general term for polyphenolic compounds extracted from seaweed, which have biological activity. Seaweed polyphenols can be used as natural food additives, and can be used for anti-oxidation, fresh-keeping and anti-corrosion of food. In addition, seaweed polyphenols also have antibacterial, antitumor, chemical defense and deodorizing activities. [0003] However, the polyphenols in seaweed are not easy to be extracted directly. The traditional extraction process only uses organic solvent extraction. This method not only takes a long extraction period, but the antioxidant activity of the obtained seaweed polyphenols will be affected to some extent an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/02A61K38/47A61P31/04A61P35/00A61P43/00A23L3/3472
CPCA23L3/3472A23V2002/00A61K36/02A61K38/47A61K2236/13A61K2236/19A61K2236/30A61P31/04A61P35/00A61P43/00C12Y302/01017A61K2300/00A23V2200/10A23V2250/202A23V2300/14
Inventor 高治伟
Owner 高治伟
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