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Crystal fructose production process by corn starch

A technology for crystallizing fructose and corn starch, which is applied in the field of producing crystalline fructose, can solve problems such as crystallization difficulties, and achieve the effects of overcoming crystallization difficulties and reducing energy consumption

Active Publication Date: 2006-12-13
SHANDONG XIWANG SUGAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects existing in the prior art, the present invention solves the crystallization difficulty in converting glucose into crystalline fructose by controlling the process parameters in the process of chromatographic separation, evaporation concentration, crystallization, etc., and provides a method for producing fructose with cornstarch as raw material. crystallization process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Technical scheme of the present invention comprises the steps of following order:

[0028] a. Corn is used as raw material, soaked, degermed, finely ground, sieved to remove fiber and protein, and then washed multiple times to obtain refined starch milk;

[0029] b. Continuous jet liquefaction, saccharification and other processes are used to obtain saccharified liquid from refined starch milk, and the obtained saccharified liquid is evaporated and concentrated into glucose concentrate by multi-effect falling film evaporator;

[0030] c Partially convert the glucose in the glucose concentrate into fructose through the isomerization reaction:

[0031] Pass the concentrated glucose solution through an immobilized isomerase column to obtain F42 fructose syrup, and the parameters controlled in the isomerization process are: feed sugar solution dry matter at 45%, purity 95%, pH 7.8, isomerization temperature 60°C, the isomerization time is 3 hours, and the calcium ion is co...

Embodiment 2

[0043] Technical scheme of the present invention comprises the steps of following order:

[0044] a. Corn is used as raw material, soaked, degermed, finely ground, sieved to remove fiber and protein, and then washed multiple times to obtain refined starch milk;

[0045] b. Continuous jet liquefaction, saccharification and other processes are used to obtain saccharified liquid from refined starch milk, and the obtained saccharified liquid is evaporated and concentrated into glucose concentrate by multi-effect falling film evaporator;

[0046] c Partially convert the glucose in the glucose concentrate into fructose through the isomerization reaction:

[0047] Pass the concentrated glucose solution through an immobilized isomerase column to obtain F42 fructose syrup. The parameters controlled in the isomerization process are: feed sugar solution dry matter at 40%, purity 94%, pH7.5, isomerization temperature 55°C, the isomerization time is 0.6h, the calcium ion is controlled to ...

Embodiment 3

[0059] Technical scheme of the present invention comprises the steps of following order:

[0060] a. Corn is used as raw material, soaked, degermed, finely ground, sieved to remove fiber and protein, and then washed multiple times to obtain refined starch milk;

[0061] b. Continuous jet liquefaction, saccharification and other processes are used to obtain saccharified liquid from refined starch milk, and the obtained saccharified liquid is evaporated and concentrated into glucose concentrate by multi-effect falling film evaporator;

[0062] c Partially convert the glucose in the glucose concentrate into fructose through the isomerization reaction:

[0063] Pass the concentrated glucose solution through the immobilized isomerase column to obtain F42 fructose syrup. The parameters controlled in the isomerization process are: feed sugar solution dry matter at 50%, purity 95%, pH78.2, isomerization temperature 62°C, isomerization time 4h, control calcium ion less than 1ppm, add ...

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Abstract

The invention for the technology of using cornstarch to product crystallization diabetin relates to the field of carbohydrate manufacturing technique. This technique, using corn as material, through the procedures of compression, isomerization chromatographic fractionation, evaporation and crystallization and so on, by controlling the parameters in the steps of crystallization and so on, does not only resolve the defect of the high difficulty of diabetin crystallization, but also reduce the energy consumption of specific product.

Description

Technical field: [0001] The invention relates to the field of sugar production technology, in particular to a technology for producing crystalline fructose with cornstarch as raw material. Background technique: [0002] In the prior art, the production of crystalline fructose mainly includes the following methods in terms of raw materials: using sucrose as raw material, hydrolysis to obtain a mixture of fructose and glucose, and separation by adsorption to obtain high-purity fructose and glucose, and crystallization and separation of high-purity fructose , crystalline fructose can be obtained, but the yield of this method is low. Under the action of mannitol isomerase, mannitol is produced into a fructose solution, which can be recrystallized to obtain fructose, but the source of mannitol is problematic, so it is not advisable. The hydrolysis of inulin can be 100% converted into fructose, but the industrial production of inulin sources is difficult and not advisable. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K3/00
Inventor 王勇王亮李伟阿纳斯
Owner SHANDONG XIWANG SUGAR
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