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Method for preparing high fructose corn syrup from crystallized sugar mother solution as raw material

A fructose syrup and crystallized sugar technology, which is applied in the direction of sugar derivatives, sugar derivatives, sugar derivatives preparation, etc., can solve the complex pigment components of the crystallized sugar mother liquor, which affects the application range of the crystallized sugar mother liquor, and the added value of the crystallized sugar mother liquor. High-level problems, to achieve significant economic benefits, reduce equipment investment, increase the effect of added value

Inactive Publication Date: 2014-08-13
SHANDONG LUZHOU FOOD GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Crystallized sugar mother liquor is a by-product in the production process of crystallized sugar. At present, the added value of crystallized sugar mother liquor is not high, mainly because the crystallized sugar mother liquor contains various components, mainly glucose and a certain amount of oligosaccharides, which affects the crystallized sugar. The scope of application of the mother liquor. In addition, the pigment components in the crystallized sugar mother liquor are complex, which also greatly limits the application of the crystallized sugar mother liquor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of method utilizing crystalline sugar mother liquor as raw material to produce fructose syrup, the steps are as follows:

[0041] (1) Separating and purifying the crystalline sugar mother liquor containing glucose with a mass concentration of 45% through a simulated moving bed to obtain a glucose solution with a dry basis glucose content ≥ 90wt%;

[0042] The conditions for the separation and purification of the simulated moving bed are: chromatographic separation feed temperature 70°C, feed flow rate 3.8m 3 / h, eluent flow rate 8m 3 / h, switching time 2700s;

[0043] Detected by HPLC high-performance liquid chromatography using a normalization method, the mass content of glucose in the glucose solution in terms of dry weight is 95.1%.

[0044] (2) adding water to adjust the glucose mass concentration in the glucose solution to 30%, Na 2 CO 3 Adjust the pH to 8.5 to prepare a reaction solution, add magnesium sulfate and sodium metabisulfite to the reaction so...

Embodiment 2

[0052]A kind of method utilizing crystalline sugar mother liquor as raw material to produce fructose syrup, the steps are as follows:

[0053] (1) Separating and purifying the crystalline sugar mother liquor containing glucose with a mass concentration of 45% through a simulated moving bed to obtain a glucose solution with a dry basis glucose content ≥ 90wt%;

[0054] The conditions for the separation and purification of the simulated moving bed are: chromatographic separation feed temperature 70°C, feed flow rate 3.5m 3 / h, eluent flow rate 7.6m 3 / h, switching time 2750s;

[0055] Detected by HPLC high-performance liquid chromatography using a normalization method, the mass content of glucose in the glucose solution in terms of dry weight is 95.4%.

[0056] (2) adding water to adjust the glucose mass concentration in the glucose solution to 35%, Na 2 CO 3 Adjust the pH to 8.0 to prepare a reaction solution, add magnesium sulfate and sodium metabisulfite to the reaction s...

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Abstract

The invention relates to a method for preparing high fructose corn syrup from a crystallized sugar mother solution as a raw material. The method comprises the steps of separating by simulated moving bed chromatography, carrying out isomerism by liquid isomerase, absorbing by activated carbon, carrying out ion exchange and concentrating to obtain the high fructose corn syrup, wherein the glucose mother solution is taken as a raw material. According to the method disclosed by the invention, the crystallized sugar mother solution with complex components is separated and purified by a simulated moving bed chromatographic separation device, then the glucose is converted to fructose by liquid isomerase, and then pigment components contained in the crude crystallized sugar mother solution are removed by activated carbon and ion exchange, so that the existing ion exchange and decolorizing steps for many times are greatly simplified, the investment on equipment is reduced and the yield of the product is increased.

Description

technical field [0001] The invention relates to a method for producing fructose syrup by using crystallized sugar mother liquor as a raw material, belonging to the technical field of sugar industry. Background technique [0002] The production of fructose syrup is mainly enzymatically liquefied corn starch, then converted into glucose with glucoamylase, and then converted part of the glucose into fructose with glucose isomerase. The production process is complex, requiring four decolorization filtrations and two separations. The conversion rate of the immobilized isomerase used is 10-20 tons / kg, and the feed solution of the isomerase is required to be refined so that the glucose content is greater than 95%, otherwise the sugar content is not enough after the isomerization. When immobilized isomerase is used, the flow rate of feed liquid is required to be stable. When the product is unsalable, the output cannot be adjusted in time, so the operation flexibility in production ...

Claims

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Application Information

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IPC IPC(8): C12P19/24C12P19/02C07H3/02C07H1/06
Inventor 刘玉春赵玉斌牛纪超
Owner SHANDONG LUZHOU FOOD GROUP
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