Process for preparing maltose by high-temperature liquification method

A technology of maltose and high temperature, which is applied in the field of high temperature liquefaction to prepare maltose, can solve the problems of amylase, such as great influence of temperature and humidity, poor filtering performance of sugar solution, and increased production cost, to achieve good effect, save high temperature amylase, increase cost effect

Inactive Publication Date: 2017-06-13
河南飞天生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The liquefaction of conventional starch uses high-temperature amylase, one injection or two injections, and one or two enzyme additions to achieve liquefaction, but amylase is greatly affected by temperature and humidity, and its properties are unstable, which easily affects product quality; and adding Amylase increases the production cost, resulting in poor filtration performance of the produced sugar solution

Method used

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  • Process for preparing maltose by high-temperature liquification method
  • Process for preparing maltose by high-temperature liquification method
  • Process for preparing maltose by high-temperature liquification method

Examples

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Embodiment 1

[0020] The process for preparing maltose by high-temperature liquefaction method in this embodiment comprises the following steps:

[0021] 1) Sizing: Sizing starch and water to 18 degrees Baume, the mass ratio of starch and water is 9:16, to obtain a mixed starch slurry;

[0022] 2) Liquefaction: Adjustment step 1) Use sulfuric acid to adjust the pH of the mixed starch slurry to 3.0, the temperature of one injection is 150°C, the pressure is 0.3MPa, the maintenance time is 12 minutes, and the DE value of the liquefaction solution is 16%;

[0023] 3) Saccharification: Add fungal enzymes to the liquefaction solution in step 2) at a dry basis of 0.2kg / ton to obtain a saccharification solution with a disaccharide content of more than 40%;

[0024] 4) Filtration and decolorization: add diatomaceous earth to the saccharification solution in step 3), the amount of diatomite added is 1.5kg / ton dry basis, filter with a plate and frame, the temperature of the filtrate is 65°C, and the ...

Embodiment 2

[0035] The process for preparing maltose by high-temperature liquefaction method in this embodiment comprises the following steps:

[0036] 1) Sizing: starch and water are slurried to 19 degrees Baume, the mass ratio of starch and water is 1:2, and a mixed starch slurry is obtained;

[0037] 2) Liquefaction: Adjustment step 1) Use sulfuric acid to adjust the pH of the mixed starch slurry to 3.5, the temperature of one injection is 155°C, the pressure is 0.35MPa, the maintenance time is 15 minutes, and the DE value of the liquefaction solution is 18%;

[0038] 3) Saccharification: Add fungal enzymes to the liquefaction solution in step 2) at a rate of 0.2-0.3 kg / ton dry basis to obtain a saccharification solution with a disaccharide content of more than 40%;

[0039] 4) Filtration and decolorization: add diatomaceous earth to the saccharification solution in step 3), the amount of diatomite added is 1.5kg / ton dry basis, filter with a plate and frame, the temperature of the filt...

Embodiment 3

[0043] The process for preparing maltose by high-temperature liquefaction method in this embodiment comprises the following steps:

[0044] 1) Sizing: starch and water are slurried to 20 degrees Baume, the mass ratio of starch and water is 3:7, and a mixed starch slurry is obtained;

[0045] 2) Liquefaction: Adjustment step 1) Use sulfuric acid to adjust the pH of the mixed starch slurry to 3.5, the temperature of one injection is 160°C, the pressure is 0.4MPa, the maintenance time is 20 minutes, and the DE value of the liquefaction solution is 20%;

[0046] 3) Saccharification: add fungal enzymes to the liquefaction solution in step 2) at a dry basis of 0.3kg / ton to obtain a saccharification solution with a disaccharide content of more than 40%;

[0047] 4) Filtration and decolorization: add diatomaceous earth to the saccharification solution in step 3), the amount of diatomite added is 1.5kg / ton dry basis, filter with a plate and frame, the temperature of the filtrate is 70°...

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Abstract

The invention provides a process for preparing maltose by a high-temperature liquification method. The process comprises the following steps: performing pulp conditioning on starch and water until 18 to 20 baume degrees to obtain mixed starch pulp; adjusting the pH value of the mixed starch pulp to be 3.0 to 3.5 by using sulfuric acid, performing primary jetting at the temperature of 150 to 160 DEG C, and adding fungal enzyme into liquefied liquid to obtain saccharified liquid; adding diatomite into the saccharified liquid, filtering by using a sheet frame, adding activated carbon into the filtrate, and performing decoloring treatment by an Amar filtering machine to obtain decolored saccharified liquid; passing through ion exchange resin, wherein the discharging conductivity of the saccharified liquid after ion exchange is less than or equal to 20 us/cm; pumping the saccharified liquid after ion exchange into a quintuple-effect evaporator and performing evaporation and concentration, wherein the concentration after concentration is 75 percent. The aim of the process is as follows: the enzyme preparation is saved by the high-temperature liquification method under the condition of not adopting amylase.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a process for preparing maltose by a high-temperature liquefaction method. Background technique [0002] The liquefaction process of starch generally involves first gelatinization and then liquefaction, that is, after mixing starch with water, stirring above the gelatinization temperature, starch molecules are released from the solid crystal lattice to form a gelatinous starch paste. After the gelatinization of starch molecules, starch molecules continue to be decomposed into short-chain dextrins by amylase or high temperature (>130°C). Liquefaction reaction". [0003] The liquefaction of conventional starch uses high-temperature amylase, one injection or two injections, and one or two enzyme additions to achieve liquefaction, but amylase is greatly affected by temperature and humidity, and its properties are unstable, which easily affects product quality; and adding Amylase i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/12
CPCC12P19/12
Inventor 李林海董得平黄如俊
Owner 河南飞天生物科技股份有限公司
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