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A kind of decolorization process method of enteromorpha polysaccharide

A technology of enteromorpha polysaccharide and process method, which is applied in the field of decolorization process of enteromorpha polysaccharide, can solve the problems of unrealistic industrial production, low recovery rate, cumbersome operation, etc., achieve low polysaccharide loss rate, change the direction of deep processing, and improve the decolorization rate high effect

Active Publication Date: 2021-04-16
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional decolorization process includes oxidation method, adsorption method, enzymatic method, etc., the operation is cumbersome, the cost is high, the recovery rate is low, and industrial production cannot be realized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of decolorization process method of Enteromorpha polysaccharide, comprises the following steps:

[0021] (1) Sugar extraction: Take 60 g of washed and dried Enteromorpha powder, add 2.5 L of water and mix well, bathe in boiling water for 2.5 h, filter while hot and centrifuge at 4000 r / min for 10 minutes, and take the clear liquid;

[0022] (2) Alcohol precipitation: add 1.5 times the volume of absolute ethanol to the clear liquid obtained in step (1), let it stand for 2 hours, centrifuge at 4000 r / min for 10 minutes, discard the supernatant to obtain the precipitation of Enteromorpha polysaccharide;

[0023] (3) Reconstitution: Dissolve the Enteromorpha polysaccharide precipitate obtained in step (2) in distilled water 200 times its mass, stir magnetically at 40°C for 2 h until dissolved, and then centrifuge at 1000 r / min for 10 minutes to remove insoluble components to obtain Enteromorpha polysaccharide aqueous solution;

[0024] (4) Acid treatment: adjust the...

Embodiment 2

[0029] A kind of decolorization process method of Enteromorpha polysaccharide, comprises the following steps:

[0030] (1) Sugar extraction: Take 80 g of washed and dried Enteromorpha powder, add 3.0 L of water and mix well, bathe in boiling water for 2.5 h, filter while hot and centrifuge at 4000 r / min for 10 minutes, and take the clear liquid;

[0031] (2) Alcohol precipitation: add 1.5 times the volume of absolute ethanol to the clear liquid obtained in step (1), let it stand for 2 hours, centrifuge at 4000 r / min for 10 minutes, discard the supernatant to obtain the precipitation of Enteromorpha polysaccharide;

[0032] (3) Reconstitution: Dissolve the Enteromorpha polysaccharide precipitate obtained in step (2) in distilled water 200 times its mass, stir magnetically at 40°C for 2 h until dissolved, and then centrifuge at 1000 r / min for 10 minutes to remove insoluble components to obtain Enteromorpha polysaccharide aqueous solution;

[0033] (4) Acid-base treatment: adjus...

Embodiment 3

[0038] A kind of decolorization process method of enteromorpha polysaccharide, comprises the following steps:

[0039] (1) Sugar extraction: Take 80 g of washed and dried Enteromorpha powder, add 3.0 L of water and mix well, bathe in boiling water for 2.5 h, filter while hot and centrifuge at 4000 r / min for 10 minutes, and take the clear liquid;

[0040] (2) Alcohol precipitation: add 1.5 times the volume of absolute ethanol to the clear liquid obtained in step (1), let it stand for 2 hours, centrifuge at 4000 r / min for 10 minutes, discard the supernatant to obtain the precipitation of Enteromorpha polysaccharide;

[0041] (3) Reconstitution: Dissolve the Enteromorpha polysaccharide precipitate obtained in step (2) in distilled water 100 times its mass, stir magnetically at 40°C for 4 h until dissolved, and then centrifuge at 1000 r / min for 10 minutes to remove insoluble components to obtain Enteromorpha polysaccharide aqueous solution;

[0042] (4) Acid treatment: adjust the...

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Abstract

The invention provides a decolorization process of Enteromorpha polysaccharide, which comprises the following steps: adding water and mixing the washed and dried Enteromorpha powder, taking a boiling water bath, centrifuging while it is hot, and taking its clear liquid; Add absolute ethanol to it, let it stand, centrifuge to collect the polysaccharide precipitate of Enteromorpha polysaccharide, then add the precipitate into distilled water and stir to dissolve, and centrifuge after dissolving; use hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, perchloric acid, trifluoroacetic acid, acetic acid, etc. The pH of the moss polysaccharide is adjusted to 2.0-6.5, put in a water bath, centrifuge after the water bath, and freeze-dry to obtain the decolorized enteromorpha polysaccharide. Through the technical scheme of the present invention, the whiteness of the sample through the acid treatment process has been significantly improved, and the whiteness continues to increase with the decrease of the pH value, which overcomes the disadvantages of difficult decolorization of traditional polysaccharides, low purity of polysaccharides, and high loss rate , changing the deep processing direction of Enteromorpha polysaccharides, greatly improving the application field of Enteromorpha polysaccharides, and the Enteromorpha polysaccharides produced by the invention have high decolorization rate and low polysaccharide loss rate.

Description

technical field [0001] The invention relates to the field of biology, in particular to a decolorization process of Enteromorpha polysaccharide. Background technique [0002] Enteromorpha is a Ulva-like plant that grows on tidal flats and gravels in the mid-tidal zone, with its base attached to rocks with a fixator. Since 2008, green tides of large-scale algae Enteromorpha have broken out in the East my country Sea and the Yellow Sea, seriously threatening the development of coastal fisheries and tourism. How to effectively utilize Enteromorpha resources and turn waste into wealth has become an important issue for improving the ecological environment and comprehensive utilization of seaweed. A large number of studies have found that Enteromorpha polysaccharide has good water absorption, oil absorption and foaming function and other chemical functional activities, and has certain medical biological activities in terms of anti-oxidation, blood lipid lowering and pancreatic lip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 李银平王锡爽王欣欣闫鸣艳
Owner QINGDAO UNIV OF SCI & TECH
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