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Method for extracting chondroitin sulfate from fish cartilage

A technology for chondroitin sulfate and cartilage, applied in the field of bioengineering, can solve the problems of restricting the development of small molecule chondroitin sulfate, low yield of chondroitin sulfate, high price, etc., and achieves the advantages of reducing the amount of alcohol, short cycle and convenient operation. Effect

Inactive Publication Date: 2015-03-25
QINGDAO LANNONGGU AGRI PROD RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, due to the low yield and high price of chondroitin sulfate enzyme, the development of small molecule chondroitin sulfate industry is seriously restricted. How to invent a method with high efficiency, convenient operation, short production cycle and suitable for large-scale process production, so as to produce small Molecule of chondroitin sulfate, of great importance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Primary screening of microorganisms: Suspend the soil sample with sterile water to make a 10% soil solution, filter through two layers of filter paper to obtain a clear liquid, and dilute the liquid gradient to 10% -5 , take 0.3ml of the diluted solution to spread and culture on the separation medium plate, and purify the single bacterial colony on the separation medium plate by the method of streaking the plate for 2 times. (NH 4 ) 2 SO 4 0.5%, K 3 PO 4 0.05%, NaCl 0.6% primary screening medium plate, control pH = 7.0, incubate in a 32°C incubator for 6-7 days, pour 6ml of 3mol / L glacial acetic acid into the plate, soak for 3min, will produce transparent The circled strains were stored on solid slant medium in test tubes by streaking method and stored at 4°C for later use;

[0022] (2) Microbial re-screening: Inoculate the bacteria that produced the transparent circle into the re-screening medium, culture at 32°C for 2 days with shaking and aeration at 135r / ...

Embodiment 2

[0029] (1) Primary screening of microorganisms: Suspend the soil sample with sterile water to make a 10% soil solution, filter through two layers of filter paper to obtain a clear liquid, and dilute the liquid gradient to 10% -5 , take 0.3ml of the diluted solution to spread and culture on the separation medium plate, and purify the single bacterial colony on the separation medium plate by the method of streaking the plate for 2 times. (NH 4 ) 2 SO 4 0.5%, K 3 PO 4 0.05%, NaCl 0.6% primary screening medium plate, control pH = 7.0, incubate in a 32°C incubator for 6-7 days, pour 6ml of 3mol / L glacial acetic acid into the plate, soak for 3min, will produce transparent The circled strains were stored on solid slant medium in test tubes by streaking method and stored at 4°C for later use;

[0030] (2) Microbial re-screening: Inoculate the bacteria that produced the transparent circle into the re-screening medium, culture at 32°C for 2 days with shaking and aeration at 135r / ...

Embodiment 3

[0037] (1) Primary screening of microorganisms: Suspend the soil sample with sterile water to make a 10% soil solution, filter through two layers of filter paper to obtain a clear liquid, and dilute the liquid gradient to 10% -5 , take 0.3ml of the diluted solution to spread and culture on the separation medium plate, and purify the single bacterial colony on the separation medium plate by the method of streaking the plate for 2 times. (NH 4 ) 2 SO 4 0.5%, K 3 PO 4 0.05%, NaCl 0.6% primary screening medium plate, control pH = 7.0, incubate in a 32°C incubator for 6-7 days, pour 6ml of 3mol / L glacial acetic acid into the plate, soak for 3min, will produce transparent The circled strains were stored on solid slant medium in test tubes by streaking method and stored at 4°C for later use;

[0038] (2) Microbial re-screening: Inoculate the bacteria that produced the transparent circle into the re-screening medium, culture at 32°C for 2 days with shaking and aeration at 135r / ...

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PUM

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Abstract

The present invention discloses a method for extracting chondroitin sulfate from fish cartilage. The method is characterized by comprising: (1) primary microorganism screening, (2) secondary microorganism screening, (3) fermentation culture, (4) chondroitin sulfate enzyme extraction, (5) cartilage pre-treatment, (6) enzymolysis ultra-filtration, and (7) chondroitin sulfate preparation. According to the present invention, the fish cartilage is adopted to extract the shark chondroitin sulfate, the chondroitin sulfate enzyme produced through fermentation has the high activity, the small molecule chondroitin sulfate obtained through enzymolysis of the chondroitin sulfate enzyme has characteristics of small viscosity, good solubility, easy absorption, high bioavailability and the like, the hydrolysate adopts the ultra-filtration membrane concentration process so as to improve the product yield and the purity, and the extraction method of the present invention has characteristics of convenient operation, short period, easy operation, and large-scale industrial production achieving.

Description

technical field [0001] The invention belongs to the field of bioengineering, and in particular relates to a method for extracting chondroitin sulfate from fish cartilage. Background technique [0002] Chondroitin sulfate is an acidic mucopolysaccharide extracted from cartilage such as mammalian trachea. White powder, odorless, tasteless, easy to absorb moisture, soluble in water, insoluble in organic solvents such as ethanol and acetone, it swells or becomes viscous when it meets water, and is relatively unstable to heat. It needs to be stored away from light and sealed. Chondroitin is a mucopolysaccharide composed of D-glucuronic acid and N-acetyl-D-galactosamine. Chondroitin sulfate is the sulfate ester of chondroitin, a major component of connective tissue. It has the functions of clarifying lipids, improving the detoxification function of the body, diuresis and analgesia. It is very effective for collagen diseases and also effective for hearing impairment caused by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/26
Inventor 李妮
Owner QINGDAO LANNONGGU AGRI PROD RES & DEV