Liquor cleaning process for refining sugar from corns

A technology for producing corn sugar clear liquid and sugar clear liquid, which is applied in fermentation and other directions, can solve the problems of low industrialization level, low sugar yield, and easy contamination of bacteria, and achieve complete liquefaction, increase sugar yield, and improve economic benefits Effect

Active Publication Date: 2010-04-14
河南金丹乳酸科技股份有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, due to the backwardness of production equipment, sugar making process and technical level, the industrialization level of converting starch into glucose in my country is still low, mainly manifested in the low sugar yield, easy contamination of bacteria in the sugar making process, and unstable process indicators, etc.

Method used

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Embodiment Construction

[0021] The corn sugar clear liquid process of the present invention may include process steps such as corn impurity removal, crushing, slurry preparation, pre-liquefaction, liquefaction, filtration, saccharification, sterilization, and proportioning. You can follow the specific steps below:

[0022] 1. After the corn is removed from impurities and sieves, it is crushed to remove germs, and then pulped. The mixing temperature is 90-100°C, the cornstarch milk is adjusted to 19.8-20 Baume, and 0.072-0.075KNU / g dry base starch is added with amylase with heat resistance not lower than 100°C to start pre-liquefaction;

[0023] 2. The pre-liquefaction control temperature is 90-100°C, the pH value is about 6.0, the stirring is controlled at 35-70rpm, and kept for 20-50min.

[0024] 3. Perform spray liquefaction, control the spray temperature at 105-108°C, and maintain the high temperature for 4-5 minutes;

[0025] 4. Keep warm at 94-100°C, add 1% dilute sulfuric acid after the iodin...

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PUM

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Abstract

The invention provides a liquor cleaning process for refining sugar from corns, which sequentially comprises steps as follows: (1) mixing: preparing corn powder and then mixing the corn powder to 19-21 baume degrees, (2) pre-liquefying: adding starch containing 0.07-0.08KNU / g amylase in dry basis and having thermal resistance not lower than 100 DEG C, and controlling temperate within 90-100 DEG C, pH value within 5-7, stirring velocity within 35-70rpm for 20-50min, (3), jet liquefying: controlling jetting temperature within 105-108 DEG C and keeping jetting for 4-5min, (4) saccharifying: keeping temperature within 94-100 DEG C, regulating pH to 3.5-5.5 after liquor becomes brownish red through iodine test, cooling the liquor to a temperature within 59-61 DEG C and then adding starch containing 0.5-0.6AGU / g complex diastatic enzyme in dry basis, and retaining the liquor for 22-25h. By utilizing the liquor cleaning process for refining sugar from corns, liquor cleaning can be thorough, thereby greatly increasing sugar yield and being favorable for filtering sugar liquor after being liquefied.

Description

technical field [0001] The invention relates to a corn sugar clear liquid process. Background technique [0002] In the starch sugar industry and many food fermentation industries, starch is used as raw material, and glucose is hydrolyzed into glucose as a factory product or semi-finished product. Due to factors such as price and effect, corn starch is the most used raw material. At present, due to the backwardness of production equipment, sugar making process and technical level, the industrialization level of converting starch into glucose in my country is still low, mainly manifested in the low sugar yield, easy contamination of sugar during the sugar making process, and unstable process indicators. Compared with the United States, where the starch industry is developed, there is still a big gap. From the perspective of the whole process of corn direct method to produce starch sugar clear liquid, whether the liquefaction is complete or not is directly related to whether ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/14
Inventor 刘喆尚艳秋郭廷杨清翔侯玉仲张海良邢万明董兰时伟葛大森
Owner 河南金丹乳酸科技股份有限公司
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