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Method for extracting pectinos from gum arabic hydrolysate

A technology of arabinose and solution, applied in the field of simulated moving bed chromatographic separation, can solve the problems of inability to obtain separation, and achieve the effects of low production cost, small production site, and good adsorption and separation performance

Inactive Publication Date: 2009-02-18
WUXI GREEN SEPARATION TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present preparation method has the following problems: the gum arabic hydrolyzate obtained by acid hydrolysis contains a large amount of impurities such as galactose, rhamnose, glucuronic acid, and the usual method cannot be well separated

Method used

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  • Method for extracting pectinos from gum arabic hydrolysate
  • Method for extracting pectinos from gum arabic hydrolysate

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Example 1 Synthetic resin

[0026] Synthesize acidic calcium-type or lead-type chelating resins for special adsorption and separation of arabinose;

[0027] Among them, acidic calcium-type or lead-type chelating resins use acidic macroporous resins as carriers to chelate metal calcium ions or lead ions, and use the affinity between the acidic resin and metal calcium ions or lead ions to release metal calcium ions. Or lead ions are adsorbed on the surface of the acidic macroporous resin and fixed on the carrier resin with a crosslinking agent; the amount of the crosslinking agent is 4% to 20% of the weight of the acidic macroporous resin; the optimum is 10% to 14%.

[0028] metal Ca 2+ ion or Pb 2+ The ion is used in the form of metal Ca which can be dissolved under neutral or alkaline conditions 2+ ion or Pb 2+ Salts or oxides of ions, metal Ca 2+ ion or Pb 2+ The amount of ions to make the resin chelate reach 30% saturated amount to fully saturated amount;

Embodiment 2

[0029] Embodiment 2 separation and purification

[0030] A fixed bed equipped with the above-mentioned calcium-type or lead-type chelating resin is used to use simulated moving bed technology to separate and purify from the gum arabic hydrolyzate to obtain a pure arabinose product.

[0031] Simulated moving bed technology: In the simulated moving bed chromatographic separation device, the above-mentioned acidic calcium-type or lead-type chelating resin is used as the stationary phase adsorbent, and the affinity difference between the macromolecular metal adsorbent and various sugars is used to realize the separation of arabinose and semi-glucose. Complete separation of lactose, glucuronic acid and other miscellaneous sugars; using water as the eluent, the separation temperature is 35 ° C ~ 95 ° C, the optimal separation temperature is 70 ° C, continuous feeding and discharging operations, and at the same time Two types of output components, one is the component with arabinose ...

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Abstract

The present invention relates to a method for extracting arabinose from arabic gum hydrolyzate, which belongs to the technical field of simulated moving bed chromatogram separation. Acidic calcium or lead type chelate resin, which is specially used to absorb and separate out the arabinose, is first synthesized; and then, under the operation temperature between 20 DEG C and 75 DEG C and with water used as eluent, a fixed bed, on which the acidic calcium or lead type chelate resin is assembled, is adopted to use the simulated moving bed technology to thoroughly separate out heterosugars, such as the arabinose and galactose, in order to separate out and purify the arabinose product from arabic gum hydrolyzate. The method has the following advantages: since the continuous moving bed chromatogram separation is adopted, the utilization rate of the resin is high; the production process is fully automated, labor intensity is low, and the production site is small; the production cost is low, and only 2 cubic meter to 6 cubic meters of water and a small amount of electricity are needed in the separation of arabic gum hydrolyzate per cubic meter; and the production process does not use any chemical and generate any pollution.

Description

technical field [0001] The invention relates to a preparation method of high-purity arabinose, in detail, it relates to the separation and preparation of high-purity arabinose from gum arabic hydrolyzate by skillfully utilizing special resin and simulated moving bed. The invention belongs to the technical field of simulated moving bed chromatographic separation. Background technique [0002] Arabinose is a five-carbon aldose, which is a white crystalline powder with a sweetness equivalent to 50% of that of white sugar. It is a sweetener without calories. Arabinose can inhibit the enzymes that hydrolyze disaccharides and inhibit the increase in blood sugar caused by the intake of sucrose. Therefore, it can inhibit obesity, prevent and treat diseases related to hyperglycemia. Arabinose can also be used as a pharmaceutical intermediate, for the preparation of bacterial culture media in the biochemical field, and for the synthesis of spices, etc. The present preparation method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H3/02C07H1/00C13K13/00
Inventor 俞铮彭奇均
Owner WUXI GREEN SEPARATION TECH INST
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