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Preparation method of high fructose corn syrup

A fructose syrup and saccharification technology, which is applied in the production of sugar, sugar production, invert sugar production, etc., can solve the problems of lowering the monosaccharide content of saccharification liquid and affecting product quality, etc.

Inactive Publication Date: 2016-08-31
KUNSHAN PINQING BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the utilization rate of raw materials, the return material is usually mixed into the saccharified saccharification liquid, and this practice will reduce the monosaccharide content in the saccharification liquid and affect the product quality

Method used

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  • Preparation method of high fructose corn syrup
  • Preparation method of high fructose corn syrup
  • Preparation method of high fructose corn syrup

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: Take F90 as an example, including the following steps:

[0021] (1) Mix starch and water in a ratio of 40:60 to make a starch emulsion with a Baume degree of 18, then add high-temperature-resistant amylase, and spray steam from a cooking machine to convert the starch emulsion into a liquefied liquid. hours, and then lower the temperature of the liquefied solution to 65°C. Put the liquefied liquid into the saccharification tank, use 15% dilute hydrochloric acid to adjust the pH to 4.4, then add glucoamylase at a ratio of 0.5g / Kg dry matter for saccharification, and use liquid chromatography to continuously detect the glucose content during saccharification. When the glucose content reaches more than 95%, stop. It has been verified that the saccharification can be completed after 48 hours; the solution is heated to 70°C to inactivate the enzyme, and then coarsely filtered with diatomaceous earth to remove impurities; successively pass through the cation exch...

Embodiment 2

[0025] Example 2: The steps of Example 2 are the same as in Example 1, except that when the recycled material is returned to the saccharification section, the mass ratio of the recycled material to the liquefied liquid is 1:10, and the dry matter content of the obtained mixed solution 2 is 32%. Use 15% dilute hydrochloric acid to adjust the pH of the mixed solution 2 to 4.5, and then add glucoamylase at a ratio of 0.5 g / Kg dry matter for saccharification. After 45 hours, a saccharification solution with a monosaccharide content of more than 95% can be obtained .

Embodiment 3

[0026] Example 3: The steps of Example 3 are the same as in Example 1, except that when the recycled material is returned to the saccharification section, the mass ratio of the recycled material to the liquefied liquid is 1:100, and the dry matter content of the obtained mixed solution 3 is 32%. Use 15% dilute hydrochloric acid to adjust the pH of the mixed solution 3 to 4.8, and then add glucoamylase at a ratio of 0.6 g / Kg dry matter for saccharification. After 48 hours, a saccharification solution with a monosaccharide content of more than 95% can be obtained .

[0027] For specific data, please refer to figure 2 and Figure 3.

[0028] Depend on figure 2 It can be seen from Figure 3 that if the recycled material is saccharified separately, even after 69 hours of saccharification, the monosaccharide content cannot reach 95%; while the liquefied solution can reach 95% after 45 hours. However, the monosaccharide content of the mixed solution 1, the mixed solution 2 and the...

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Abstract

The invention relates to a preparation method of high fructose corn syrup. The preparation method comprises 1, taking starch as a raw material and orderly carrying out slurry mixing, liquefaction, saccharification, enzyme deactivation, coarse filtration, first ion exchange, first decolorizing filtration, first condensation, isomerization, second ion exchange, second decolorizing filtration and second condensation to obtain a high fructose corn syrup semi-finished product, 2, orderly carrying out chromatographic separation, third ionic exchange, third decolorizing filtration and third condensation on the high fructose corn syrup semi-finished product to obtain a high fructose corn syrup finished product, blending the returned material produced through chromatographic separation and a liquefied liquid to obtain a mixed liquefied liquid, putting the mixed liquefied liquid into a saccharification section, carrying out saccharification and orderly carrying out later processes to obtain a high fructose corn syrup finished product. The preparation method can effectively treat a returned material of a chromatographic separation section, improve returned material tank use efficiency, effectively utilize the returned material in production without influence on product quality, saves raw materials and reduces an enterprise cost.

Description

technical field [0001] The invention relates to the field of fructose syrup production, in particular to a preparation method of fructose syrup. Background technique [0002] Glucoamylase (Glucoamylase), also known as glucoamylase, is an exocarbase that hydrolyzes starch. Glucoamylase can hydrolyze starch from the non-reducing end of α-1.4 glucosidic bonds to produce glucose, and can also slowly hydrolyze α-1.6 glucosidic bonds to convert them into glucose. When starch is hydrolyzed under the action of glucoamylase, the macromolecular starch is first converted into a small molecular intermediate substance. At this time, the intermediate small molecular substance is called dextrin, and dextrin is under the action of glucoamylase. Further hydrolysis can also occur, releasing β-D-glucose from the non-reducing end of glycogen, producing glucose. However, there is a hydrolysis equilibrium in the hydrolysis of dextrin, and there are still a small amount of polysaccharides such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/24C12P19/20C12P19/14C12P19/02C13K3/00
CPCC12P19/24C12P19/02C12P19/14C12P19/20C13K3/00
Inventor 陈清煌郝万福
Owner KUNSHAN PINQING BIOTECH CO LTD
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