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Method for applying one-step liquefaction process to starch sugar production

An application method and technology of starch sugar, applied in the application field of one-step liquefaction method in the production of starch sugar, can solve the problems of poor protein flocculation, poor liquefaction quality, uneven liquefaction, etc., and achieve complete liquefaction, good liquefaction quality, and method simple effect

Inactive Publication Date: 2013-07-17
HENAN XINGFA FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide an application method of a one-step liquefaction method in the production of starch sugar, which can effectively solve the problem of poor liquefaction quality, uneven liquefaction, and uneven protein flocculation in the production of starch sugar. Difficult to separate, incomplete liquefaction

Method used

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  • Method for applying one-step liquefaction process to starch sugar production
  • Method for applying one-step liquefaction process to starch sugar production

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Effect test

Embodiment 1

[0011] The technical scheme solved by the present invention is to prepare starch milk, first put the starch into the batching tank, add water under the condition of stirring, mix well, the weight percentage of starch and water is: starch 30%, water 70%, starch milk The Baume degree is Be17; then add a sodium carbonate solution with a mass concentration of 30%, adjust the pH value to 5.5, add 0.3% of the starch weight of α-amylase resistant to 105°C high temperature, and mix to form a mixed slurry. The pump is pumped into the liquefier, the liquefier is fed with water vapor, the mixed slurry is heated to 105°C, and the mixed slurry enters the diffusion tank under the outlet pressure of the liquefier of 0.5MPa, and is further uniformly refined for 8 seconds. After being uniformly refined, it enters the protein separation tank and passes After the filter plate in the protein separation tank is filtered, the protein is separated, and the protein outlet flows out of the protein sepa...

Embodiment 2

[0013] The technical scheme solved by the present invention is to prepare starch milk, first put the starch into the batching tank, add water under the condition of stirring, mix well, the weight percentage of starch and water is: starch 35%, water 65%, starch milk The Baume degree is Be17.5; then add a sodium carbonate solution with a mass concentration of 35%, adjust the pH value to 5.7, add 0.4% of the starch weight of α-amylase resistant to high temperatures at 108°C, and mix to form a mixed slurry , pumped into the liquefier, the liquefier was fed with water vapor, the mixed slurry was heated to 108°C, and at the outlet pressure of the liquefier 0.55MPa, it entered the diffusion tank, and was further uniformly refined for 10 seconds. After uniform refinement, it entered the protein separation tank , after being filtered through the filter plate in the protein separation tank, the protein is separated, and the protein is discharged from the protein outlet of the protein sep...

Embodiment 3

[0015] The technical scheme solved by the present invention is to prepare starch milk, first put the starch into the batching tank, add water under the condition of stirring, mix well, the weight percentage of starch and water is: starch 40%, water 60%, starch milk The Baume degree is Be18; then add a sodium carbonate solution with a mass concentration of 40%, adjust the pH value to 6, add 0.5% of the starch weight of α-amylase resistant to 110°C high temperature, and mix to form a mixed slurry. The pump is pumped into the liquefier, the liquefier is fed with water vapor, the mixed slurry is heated to 110°C, and the mixed slurry enters the diffusion tank under the outlet pressure of the liquefier of 0.6MPa, and is further uniformly refined for 12 seconds. After uniform refinement, it enters the protein separation tank and passes After the filter plate in the protein separation tank is filtered, the protein is separated, and the protein is discharged from the protein outlet of t...

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Abstract

The invention relates to a method for applying a one-step liquefaction process to starch sugar production, which can be used for effectively solving the problems of poor liquefaction quality, non-uniform liquefaction, poor flocculation and difficult separation of proteins and incomplete liquefaction existing in starch sugar production. The technical scheme for solving the problems comprises the following steps of: preparing starch milk from 30-40 percent by weight of starch and 60-70 percent by weight of water, wherein the Baume degree of the starch milk is 17-18; adding a sodium carbonate solution of which the mass concentration is 30-40 percent; adjusting the pH value to 5.5-6; adding alpha-amylase which is resistant to high temperature of 105-110 DEG C in an amount of 0.3-0.5 percent based on the weight of the starch; mixing uniformly to obtain a mixed serous fluid; introducing water vapor into the mixed serous fluid; heating to 105-110 DEG C; uniformly refining in a container under the pressure of more than or equal to 0.5MPa for 8-12 seconds; filtering to remove proteins; maintaining the filtrate in the container for 90-120 minutes; adding hydrochloric acid; adjusting the pH value to 4.2-4.5; and saccharifying. The method has the advantages of easiness for producing and using, good liquefaction quality, uniform liquefaction, good protein flocculation separating effect, avoidance of aging phenomenon, free from insoluble starch, transparent and clear liquefaction liquid and liquefaction DE of less than or equal to 12.

Description

technical field [0001] The invention relates to chemical industry, in particular to an application method of a one-step liquefaction method in the production of starch sugar. Background technique [0002] The glucoamylase used in saccharification, also known as glucoamylase, hydrolyzes from the non-reducing end of the substrate molecule. In order to increase the chance of glucoamylase action and speed up the reaction speed, α-starch liquefaction enzyme must be used to hydrolyze dextrin and oligosaccharides, and in order to ensure the quality of liquefaction, the liquefaction should be uniform, the effect of protein flocculation and separation should be good, and the liquefaction should be thorough. At 60°C, the liquefied liquid should be stable, without aging phenomenon, without insoluble starch, transparent and clear, and liquefied DE≤12. Though existing various solutions, due to various reasons, its application effect is not satisfactory, so how to realize its technical r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P19/14
Inventor 安庆堂资从云冯彬彬王建中张庭静
Owner HENAN XINGFA FINE CHEM