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Preparation method of xanthan gum with instant solubility

A technology for xanthan gum and properties, which is applied in the field of preparation of xanthan gum, and achieves the effects of good industrial adaptability and application prospect, favorable dissolution speed, and fast dissolution speed.

Active Publication Date: 2020-09-25
河北沣川生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But above-mentioned prior art has only played certain dispersing effect in xanthan gum dissolving process, can not fundamentally solve the dissolution speed problem of xanthan gum, based on above-mentioned reason, it is very important to research and develop xanthan gum with instant function

Method used

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  • Preparation method of xanthan gum with instant solubility

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Experimental program
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Effect test

Embodiment 1

[0034] The preparation method of the xanthan gum with instant performance comprises inoculating the xanthan gum production strain into a sterilized culture solution containing a carbon source, a nitrogen source and necessary nutrients and culturing it into a fermentation solution containing xanthan gum, After purification, drying and crushing, xanthan gum is made; specifically:

[0035] A, adjust and make the fermented liquid pH that contains xanthan gum to high temperature treatment after acidity, adopt alcohol extraction to make xanthan gum wet material;

[0036] B, knead the xanthan gum wet material prepared in step A to make a paste material, add carbonate or bicarbonate to adjust the pH during the kneading process;

[0037] C. Homogenize, dry and pulverize the paste material prepared in step B to make xanthan gum with instant dissolving properties.

[0038] Xanthomonas campestris CGMCCNo.10122 was used as the strain for producing xanthan gum.

[0039] The step A is to p...

Embodiment 2

[0047] The difference between this embodiment and embodiment 1 is:

[0048] Xanthomonas campestris CGMCCNo.10122 was used as the strain for producing xanthan gum.

[0049] The step A is to prepare the fermented broth containing xanthan gum, adjust the pH of the fermented broth to 4.5 with acid, then raise the temperature to 95°C, keep the fermentation broth for 30 minutes, then cool the fermented broth to 70°C, add alcohol solution and stir until the fibers are precipitated, Centrifuge to make xanthan gum wet material.

[0050] In the step A, the amount of the alcoholic solution added is not less than twice the total volume of the fermentation broth, the volume percentage concentration of the alcoholic solution is 95%, and the alcoholic solution is selected from isopropanol.

[0051] The step B is to add the wet xanthan gum material prepared in the step A into a kneader, and adjust the pH of the wet xanthan gum material to 7.5 with a carbonate solution having a mass percent c...

Embodiment 3

[0057] The difference between this embodiment and embodiment 1 is:

[0058] Xanthomonas campestris ATCC33193 was used as the strain for producing xanthan gum.

[0059] The step A is to prepare the fermented broth containing xanthan gum, adjust the pH of the fermented broth to 4.0 with acid, then raise the temperature to 90°C, keep the temperature for 20 minutes, cool the fermented broth to 65°C, add alcohol solution and stir until the fibers are precipitated, Centrifuge to make xanthan gum wet material.

[0060] In the step A, the amount of the alcoholic solution is not less than twice the total volume of the fermentation broth, the volume percentage concentration of the alcoholic solution is 90%, and the alcoholic solution is selected from isopropanol.

[0061] The step B is to add the xanthan gum wet material prepared in the step A into the kneader, and adjust the pH of the xanthan gum wet material to 7.0 with a bicarbonate solution with a concentration of 15% by mass while...

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Abstract

The invention belongs to microbial fermentation, and particularly refers to a preparation method of xanthan gum with instant solubility. The preparation method comprises steps of inoculating xanthan gum production strains on sterilized culture solution containing carbon source, nitrogen source and essential nutrients to produce fermentation solution containing the xanthan gum, adjusting the pH ofthe fermentation solution containing the xanthan gum to be acidic, afterwards performing high-temperature treatment, preparing xanthan gum wet material by alcohol extraction; kneading the prepared xanthan gum wet material into pasty material while adjusting the pH by adding carbonate or bicarbonate; and homogenizing, drying and crushing the prepared pasty material to obtain the xanthan gum with instant solubility. According to the invention, the problem of low dissolution speed of xanthan gum in the prior art is solved. The prepared xanthan gum product has the advantages such as high dissolution speed, and viscosity and other main technical indicators not lower than that of the existing product.

Description

technical field [0001] The invention belongs to microbial fermentation, in particular to a preparation method of xanthan gum with instant properties. Background technique [0002] Xanthan gum is produced by Xanthomonas cabbage black rot, with starch as the main raw material. It is a kind of widely used water-soluble high-viscosity extracellular substance obtained by specific biological fermentation, purification, drying and crushing. polysaccharides. Due to its unique molecular structure, xanthan gum has excellent rheological properties, good viscosity-increasing properties, acid and alkali resistance, pseudoplasticity and high temperature resistance, can withstand high concentrations of salt, and has emulsifying and suspending properties. Agent, thickener, emulsifier, suspending agent, widely used in food, medicine, petroleum, textile, casting and other industries, it is currently the biological polysaccharide with the largest production scale and extremely wide use. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/06C08B37/02C12R1/64
CPCC12P19/06C08B37/0033C08B37/0003
Inventor 乞锋辉杨晓民刘学珍脱世华靳晓伟
Owner 河北沣川生物科技有限公司
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