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Method for adjusting pH value of saccharified liquid

A technology of saccharification liquid and pH value, applied in fermentation and other directions, can solve the problems affecting the quality of deep-processed products, tank corrosion, etc., and achieve the effect of increasing the added value of utilization, reducing the overall cost, and reducing the content of impurities

Inactive Publication Date: 2011-09-14
JIANGSU HUANYU KANGLI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, it is usually to add hydrochloric acid or sulfuric acid to the material to adjust, but too much Cl - and SO 4 2- It is easy to cause corrosion of the tank, and it will - and SO 4 2- Bringing it into the product will affect the quality of subsequent deep-processing products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The method for adjusting the pH value of the saccharification solution uses gluconic acid solution as the regulator, and the gluconic acid solution is the mother liquor after the production of gluconolactone.

[0011] The required amount of the above-mentioned gluconic acid solution is determined according to the pH value, and the pH value is 4.25.

Embodiment 2

[0013] The method for adjusting the pH value of the saccharification solution uses gluconic acid solution as the regulator, and the gluconic acid solution is the mother liquor after the production of gluconolactone.

[0014] The required amount of the above-mentioned gluconic acid solution is determined according to the pH value, and the pH value is 4.28.

Embodiment 3

[0016] The method for adjusting the pH value of the saccharification solution uses gluconic acid solution as the regulator, and the gluconic acid solution is the mother liquor after the production of gluconolactone.

[0017] The required amount of the above-mentioned gluconic acid solution is determined according to the pH value, and the pH value is 4.35.

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PUM

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Abstract

The invention discloses a method for adjusting the pH value of a saccharified liquid. In the method, a gluconic acid solution is used as a regulator, and the gluconic acid solution is mother liquor produced from gluconolactone. Therefore, the gluconic acid solution adopted in the invention can be used as a regulator for adjusting the pH value instead of hydrochloric acid and sulfuric acid, and thus, a discard solution is fully utilized to save process cost, increase the utilization added value of the lactone mother liquor and reduce the comprehensive cost of lactone production; meanwhile, the impurity contents of SO4<2-> and Cl<-> in a fermentation product are reduced to ensure that the SO4<2-> and the Cl<-> in the product are qualified without causing erosion to a tank body.

Description

technical field [0001] The invention relates to the field of deep processing of cornstarch, in particular to a method for adjusting the pH value of saccharification liquid involved in the process of preparing glucose from cornstarch. Background technique [0002] my country is rich in agricultural product resources, and the deep processing industry of agricultural products is developing rapidly. For the wide application of corn starch in deep processing and the specificity of high value-added renewable resources, the state has issued relevant policies and financial support for the deep and extensive development of corn starch. The fermentation industry uses starch as the main raw material and plays an important role in the deep processing of corn. Fermentation is used for deep processing of corn starch, and the starch is first made into glucose. Through fermentation, organic acids such as citric acid, monosodium glutamate, Vc, nucleic acids, amino acids, antibiotics and oth...

Claims

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Application Information

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IPC IPC(8): C12P19/20C12P19/02
Inventor 陈芳肖杰蒋伟忠
Owner JIANGSU HUANYU KANGLI TECH
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