A kind of method that corn flour prepares solid fructose

A technology of solid fructose and corn flour, which is applied in the direction of fructose production, sugar production, glucose production, etc., and can solve problems affecting transportation, storage and use, difficulty in reaching fructose standards, and difficulty in drying fructose. Achieve the effect of reducing the pressure of membrane cleaning, not easy to agglomerate, and good quality of sugar solution

Active Publication Date: 2021-07-13
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The cost of raw material starch for the existing production of fructose is high, and the production of corn flour can reduce the cost, but it is difficult to refine the sugar solution and it is difficult to meet the standard of fructose
The existing 42% fructose syrup has high water content and is easy to crystallize, which affects transportation, storage and use
However, fructose is difficult to dry and powder, and it is easy to absorb moisture and agglomerate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1), corn flour liquefaction

[0023] In the mixing tank, use 30°C tap water and dehulled and degermed corn flour to prepare 20% corn flour milk, adjust the pH value to 5.2 with dilute hydrochloric acid (chemically pure) and sodium carbonate (chemically pure), according to 32U / g (with dry matter) by adding high-temperature-resistant α-amylase, and then pump the corn flour milk from the mixing tank into the jet liquefier for jet liquefaction. The temperature is controlled at 105°C, and then the flash temperature drops to 85°C. The liquefied liquid is After heat preservation and stirring in the liquefaction laminar flow tank for 60 minutes, the reducing sugar value reaches 15%, the iodine test reaction does not show blue color, and the corn flour milk with a concentration of 20% is completely liquefied;

[0024] (2), saccharification

[0025] Cool the liquefied liquid to 55°C through a serpentine cooling tube, adjust the pH value to 4.0 with hydrochloric acid, add glucoa...

Embodiment 2

[0034] (1), corn flour liquefaction

[0035] In the mixing tank, use 37°C tap water and dehulled and degermed corn flour to prepare 22% corn flour milk, adjust the pH value to 5.4 with dilute hydrochloric acid (chemically pure) and sodium carbonate (chemically pure), according to 37U / g (with dry matter) by adding high-temperature-resistant α-amylase, and then pump the corn flour milk from the mixing tank into the jet liquefier for jet liquefaction. The temperature is controlled at 107°C, and then the flash temperature drops to 88°C. The liquefied liquid is After heat preservation and stirring in the liquefaction laminar flow tank for 70 minutes, the reducing sugar value reached 16.9%, the iodine test reaction did not show blue color, and the 22% concentration of corn flour milk was completely liquefied;

[0036] (2), saccharification

[0037] Cool the liquefied liquid to 58°C through a serpentine cooling tube, adjust the pH value to 4.2 with hydrochloric acid, add glucoamylas...

Embodiment 3

[0046] (1), corn flour liquefaction

[0047] In the mixing tank, use 44°C tap water and dehulled and degerminated corn flour to prepare 23.5% concentration of corn flour milk, adjust the pH value to 5.6 with dilute hydrochloric acid (chemically pure) and sodium carbonate (chemically pure), according to 43U / g (with dry matter) by adding high-temperature-resistant α-amylase, and then pump the corn flour milk from the mixing tank into the jet liquefier for jet liquefaction. The temperature is controlled at 108.5°C, and then the flash temperature is reduced to 91°C. The liquefied liquid is After heat preservation and stirring in the liquefaction laminar flow tank for 80 minutes, the reducing sugar value reached 18.7%, the iodine test reaction did not show blue, and the corn flour with a concentration of 23.5% was completely emulsified;

[0048] (2), saccharification

[0049] Cool the liquefied liquid to 61°C through a serpentine cooling tube, adjust the pH value to 4.4 with hydro...

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Abstract

The invention relates to a method for preparing solid fructose from corn flour, which belongs to the technical field of corn deep processing. Including corn flour liquefaction, saccharification, refining, isomerization and drying granulation steps, the present invention uses activated carbon to decolorize and directly carry out stainless steel microfiltration membrane filtration, not only can remove soluble protein and insoluble fat substances, colloids and pigments can also be thoroughly removed, sugar The liquid quality is good, the pressure of membrane cleaning is reduced, the equipment capacity can be significantly improved, the equipment investment can be significantly reduced, and the output can be expanded; The fructose granules made by granule technology have uniform particle size, smooth surface, hemispherical transparent granules, obviously not easy to agglomerate, long shelf life, easy to use, and the sugar granules have no agglomeration for 120 days.

Description

technical field [0001] The invention relates to the technical field of corn deep processing, in particular to a production method for producing solid fructose using corn flour as a raw material. Background technique [0002] Fructose itself has good flavor, high sweetness, good moisture retention, rich nutrition, liver protection and health care, and has many advantages over sucrose, but it is only used in the food and beverage industry at present, and has not entered thousands of households like sucrose. The main reason is that the production cost of the product is high and the product form is not suitable for mass consumption. [0003] At present, the domestic production of fructose syrup uses starch as the raw material, which has high production costs and causes environmental pollution. Compared with wet corn starch production technology, dry corn flour production can reduce environmental pollution, save equipment investment, save energy and water, and reduce production ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P19/24C12P19/20C12P19/14C12P19/02C13K1/06C13K1/08C13K11/00
CPCC12P19/02C12P19/14C12P19/20C12P19/24C13K1/06C13K1/08C13K11/00Y02P20/10Y02P20/59
Inventor 杨志强孟悦康立宁南喜平刘香英田志刚孙洪蕊曽宪鹏
Owner JILIN ACAD OF AGRI SCI
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