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Polysaccharide decoloring composite material

A technology of composite materials and polysaccharides, applied in alkali metal compounds, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve problems such as resin pollution, difficult regeneration, long production cycle, etc.

Inactive Publication Date: 2012-10-17
BIOCHEM ENG COLLEGE OF BEIJING UNION UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for natural polysaccharides extracted from animals, plants, etc., in general, avoid decolorization with activated carbon, because activated carbon will adsorb polysaccharides, resulting in loss of polysaccharides
(2) Resin decolorization: This is a newly developed decolorization method. It has good decolorization effect and is suitable for systems with small processing capacity, low viscosity and low pigment content. Otherwise, it will easily cause resin pollution, difficult regeneration, and resin cost. Higher, the eluent must be screened by thin-layer chromatography before the experiment, and then put on the column and eluted, and the production cycle is longer
However, this method is only suitable for decolorization of systems that are relatively stable and not easily oxidized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Mix the washed, dried, crushed and sieved peanut shell powder with phosphoric acid solution with a mass fraction of 32%, according to the mass ratio of peanut shell powder and phosphoric acid solution at a ratio of 0.9:1, and stir and knead at 60°C After 1 hour, add an appropriate amount of aluminum nitrate aqueous solution, and continue stirring and kneading for 2 hours;

[0013] (2) Extrude the above-mentioned mixture into spherical particles with a particle diameter of about 2 mm on the molding equipment, and place it in a drying oven for 2.5 hours at 85° C., and then place it in a 400° C. resistance furnace for heat treatment in isolation from air for 2 hours to obtain granular material;

[0014] (3) Dissolve an appropriate amount of silver nitrate and glucose in water, add the above-mentioned granular materials into it under constant stirring, continue to stir and mix for 1 hour, discard the filtrate and place it in a drying oven for drying, and heat and reduce...

Embodiment 2

[0018] (1) Mix the washed, dried, crushed and sieved peanut shell powder with phosphoric acid solution with a mass fraction of 45%, according to the mass ratio of peanut shell powder and phosphoric acid solution at a ratio of 1:1, and stir and knead at 55°C After 1 hour, add an appropriate amount of aluminum chloride aqueous solution, and continue stirring and kneading for 2 hours;

[0019] (2) Extrude the above-mentioned mixture into spherical particles with a particle diameter of about 1.8 mm on the molding equipment, and place it in a drying oven for 1.5 hours at 85° C., and then place it in a 380° C. resistance furnace for heat treatment in an isolated air for 3 hours to obtain granular material;

[0020] (3) Dissolve an appropriate amount of silver nitrate and glucose in water, add the above-mentioned granular materials into it under constant stirring, continue to stir and mix for 1 hour, discard the filtrate and place it in a drying oven for drying, and heat and reduce a...

Embodiment 3

[0024] (1) Mix the washed, dried, crushed and sieved peanut shell powder with phosphoric acid solution with a mass fraction of 82%, according to the mass ratio of peanut shell powder and phosphoric acid solution at a ratio of 2.6:1, and stir and knead at 65°C After 1.5 hours, add an appropriate amount of aluminum sulfate aqueous solution, and continue stirring and kneading for 1 hour;

[0025] (2) Extrude the above mixture on the molding equipment into cylindrical particles with a radius of about 1 mm and a length of about 2.8 mm, and place it in a drying oven at 115 ° C for 1.5 hours, and then place it in a resistance furnace at 480 ° C for heat treatment in isolation from air 2 hours, obtain granular material;

[0026] (3) Dissolve an appropriate amount of silver nitrate and glucose in water, add the above-mentioned granular materials into it under constant stirring, continue stirring and mixing for 1.5 hours, discard the filtrate and put it directly in a drying oven for dry...

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Abstract

The invention relates to a composite material for decoloring treatment during the polysaccharide refining process. A preparation method of the composite material comprises the following steps of: washing, drying, crushing, mixing a sieved peanut shell powder with a phosphoric acid solution, adding an aqueous solution of an aluminium-containing compound, stirring and kneading, carrying out extrusion moulding on moulding equipment, putting into a drying box for drying, putting into an electric resistance furnace to carry out heat treatment without air so as to obtain a granular material, dissolving silver nitrate and glucose in water, continuously stirring, adding the above granular material therein, continuously stirring and mixing, removing a filtrate, putting into the drying box for drying, and carrying out heating reduction to prepare the polysaccharide decolouring composite material. By the utilization of the material for decoloring a colored polysaccharide aqueous solution of plants such as ginseng, matrimony vine, pumpkin, mushroom, Mythic Fungus and the like, the decoloring efficiency is high, the loss of polysaccharide is little, and the decoloring material is easy to regenerate.

Description

technical field [0001] The invention relates to a composite material used for decolorization treatment in the polysaccharide refining process, and belongs to the technical field of biochemical industry. Background technique [0002] Polysaccharides are widely distributed in nature and are also very important. Some are components that make up the skeleton structure of animals and plants, such as cellulose; some are nutrients stored in animals and plants, such as glycogen and starch; The polysaccharides in it have antigenic effect. The structural units of polysaccharides are monosaccharides, and the relative molecular mass of polysaccharides ranges from tens of thousands to tens of millions. The structural units are connected by glycosidic bonds, which can form straight chains or branched chains. [0003] At present, polysaccharides with physiological functions are mainly extracted and separated from animals and plants, among which water-soluble polysaccharides extracted fro...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28B01J20/30C08B37/00
Inventor 周考文韩菲曲浏佳李鹏鹏兰茜
Owner BIOCHEM ENG COLLEGE OF BEIJING UNION UNIV
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