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Production process of corn starch syrup

A corn starch and production process technology, applied in the directions of energy input, fermentation, etc., can solve the problems of reduced viscosity, many complex decomposition reactions, insufficient liquefaction, etc.

Inactive Publication Date: 2020-03-17
双桥(厦门)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above existing technical solutions have the following defects: liquefaction is a process of using liquefying enzymes to hydrolyze gelatinized starch into dextrin and oligosaccharides, etc., so that the viscosity of starch is reduced and the fluidity is increased.
Corn starch, as an economical thickener, increases its viscosity when heated, and its particle stability is poor under the action of high pressure and heating alone, which can cause starch gelatinization, the phenomenon of polarized cross disappearing, and starch molecules are destroyed, resulting in viscosity. Reduced, insufficient liquefaction, resulting in more complex decomposition reactions and increased by-products, affecting the quality of corn starch syrup

Method used

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  • Production process of corn starch syrup

Examples

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Effect test

Embodiment 1

[0040] A kind of production technology of cornstarch syrup, specifically comprises the steps:

[0041] Step 1, Slurry: Add the crushed and sieved cornstarch granules and water into the slurry tank at a mass ratio of 1:1, stir well, adjust the pH of the mixed slurry to 5.4 after stirring evenly, and add liquefaction enzyme Stir evenly, the amount of liquefaction enzyme added is 0.005% of the mass of corn starch, the liquefaction enzyme is α-high temperature amylase, raise the temperature of the system to 60°C to obtain corn starch milk, and then transport the corn starch milk to the spray buffer tank for standby ;

[0042] Step 2. Liquefaction: The cornstarch milk is sprayed into the flash tank through the steam liquefaction injector for flash evaporation. The spray temperature is controlled at 103°C, and the spray time is 10 minutes. The temperature of the flash tank is controlled at 95°C through the vacuum cooling system, and the flash The steaming time is 10 minutes, and the ...

Embodiment 2

[0049] A kind of production technology of cornstarch syrup, specifically comprises the steps:

[0050] Step 1. Slurry mixing: crushed and sieved cornstarch granules and water are added to the slurry mixing tank according to the mass ratio of 1:1.2, fully stirred, and after stirring evenly, adjust the pH of the mixed slurry to 5.8, and add liquefaction enzyme Stir evenly. The amount of liquefaction enzyme added is 0.01% of the mass of corn starch. The liquefaction enzyme is α-high temperature amylase. Raise the temperature of the system to 65°C to obtain corn starch milk, and then transport the corn starch milk to the spray buffer tank for standby ;

[0051] Step 2. Liquefaction: The cornstarch milk is sprayed into the flash tank through the steam liquefaction injector for flash evaporation. The injection temperature is controlled at 110°C, and the injection time is 7 minutes. The temperature of the flash tank is controlled at 100°C through the vacuum cooling system, and the fl...

Embodiment 3

[0058] A kind of production technology of cornstarch syrup, specifically comprises the steps:

[0059] Step 1. Slurry mixing: crushed and sieved cornstarch granules and water are added to the slurry mixing tank according to the mass ratio of 1:1.5, fully stirred, and after stirring evenly, adjust the pH of the mixed slurry to 6.1, and add liquefaction enzyme Stir evenly, the amount of liquefaction enzyme added is 0.015% of the mass of corn starch, the liquefaction enzyme is α-high temperature amylase, raise the system temperature to 65°C to obtain corn starch milk, and then transport the corn starch milk to the spray buffer tank for standby ;

[0060] Step 2. Liquefaction: spray the cornstarch milk into the flash tank through the steam liquefaction ejector for flash evaporation. The injection temperature is controlled at 115°C, and the injection time is 5 minutes. The temperature of the flash tank is controlled at 98°C through the vacuum cooling system, and the flash The stea...

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Abstract

The invention relates to a production process of corn starch syrup, and relates to the technical field of syrup production. The production process comprises size mixing, liquefaction, laminar flow maintenance, saccharification, preliminary filtration, organic membrane filtration and finished product concentration so that the corn starch syrup is prepared. In the size mixing step, the temperature is raised to 60-65 DEG C by utilizing production waste heat, the temperature of the corn starch reaches the critical heat-resisting temperature of the corn starch, at the temperature, the corn starch cannot be gelatinized, the temperature is increased from 60-65 DEG C to 103-115 DEG C required by the liquefaction stage, the medium temperature difference is small, the required heating time is short,and in the process, few composite decomposition reactions are generated, few byproducts are generated and the liquefaction effect is good.

Description

technical field [0001] The invention relates to the technical field of syrup production, in particular to a production process of cornstarch syrup. Background technique [0002] At present, my country's sugar is in short supply, and beet sugar and cane sugar are far from meeting people's needs. Corn is one of the main crops in my country. It has high yield and is easy to store and transport. The starch content of corn is as high as 73.2%, which is especially suitable as a raw material for sugar production. With the development of science and technology, corn enzymatic sugar production technology has been widely used in the sugar industry. The production of corn starch syrup can not only relieve the tension of sugar in our country, but also a good way for deep processing of corn. [0003] The Chinese patent with authorized notification number CN101353681B discloses a method for preparing nitrogen-containing starch syrup for fermentation by multi-enzyme method of dehulled and...

Claims

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Application Information

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IPC IPC(8): C12P19/22C12P19/14C12P19/12C12P19/02
CPCC12P19/02C12P19/12C12P19/14C12P19/22Y02P20/129
Inventor 冯炳洪伍伯良李惠安连泽彪王斌王莉莉罗江华陈怡君
Owner 双桥(厦门)有限公司
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