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Preparation method of corn starch

A corn and starch technology, applied in the preparation methods of peptides, chemical instruments and methods, organic chemistry, etc., can solve the problems of insufficient utilization of waste materials, high processing cost and energy consumption, and imperfect process matching, etc. The effect of increasing the output of end products, producing more, and avoiding the waste of resources

Inactive Publication Date: 2020-06-19
HEILONGJIANG HAOTIAN CORN DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing corn deep-processing technology has poor energy-saving effect, imperfect technological support, and insufficient utilization of "waste" in the process, thus causing excessive processing costs and energy consumption.

Method used

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  • Preparation method of corn starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 Shown, a kind of preparation method of corn starch, concrete operation method is as follows:

[0020] a. Impurity-removing soaking: After removing impurities from the raw corn kernels, soak them in a sulfurous acid solution with a concentration of 0.18% at 52°C for 42 hours to obtain a slurry and wet corn kernels after removing impurities. This is a liquid soaking reaction process; the slurry is passed through After concentration and drying, zein is made into zein, and the slurry is concentrated by using a waste heat evaporator so that the dry matter is not less than 45% by mass.

[0021] b. Crushing and degerming: The impurity-removed wet corn kernels obtained in step a are subjected to primary crushing, and process water is added during the crushing process. After crushing, 500 ml is 6-8 whole grains, and then the crushed material is extracted with a germ cyclone to extract the germ, and the bottom flow of the germ cyclone is crushed again, and the m...

Embodiment 2

[0028] Such as figure 1 Shown, a kind of preparation method of corn starch, concrete operation method is as follows:

[0029] a. Impurity-removing soaking: After removing impurities from the raw corn kernels, soak them in a sulfurous acid solution with a concentration of 0.22% for 44 hours at 55°C to obtain a slurry and wet corn kernels after removing impurities. This is a liquid soaking reaction process; the slurry is passed through After concentration and drying, zein is made into zein, and the slurry is concentrated by using a waste heat evaporator so that the dry matter is not less than 45% by mass.

[0030] b. Crushing and degerming: The impurity-removed wet corn kernels obtained in step a are subjected to primary crushing, and process water is added during the crushing process. After crushing, 500 ml is 6-8 whole grains, and then the crushed material is extracted with a germ cyclone to extract the germ, and the bottom flow of the germ cyclone is crushed again, and the m...

Embodiment 3

[0037] Such as figure 1 Shown, a kind of preparation method of corn starch, concrete operation method is as follows:

[0038] a. Impurity-removing soaking: After removing impurities from the raw corn kernels, soak them in a sulfurous acid solution with a concentration of 0.20% for 43 hours at 52°C to 55°C to obtain a slurry and impurity-removing wet corn kernels, which is a liquid soaking reaction process; After the thin slurry is concentrated and dried, it is made into zein, and the thin slurry is concentrated by using a waste heat evaporator to reach a dry matter percentage of not less than 45% by mass.

[0039] b. Crushing and degerming: The impurity-removed wet corn kernels obtained in step a are subjected to primary crushing, and process water is added during the crushing process. After crushing, 500 ml is 6-8 whole grains, and then the crushed material is extracted with a germ cyclone to extract the germ, and the bottom flow of the germ cyclone is crushed again, and the...

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Abstract

The invention discloses a preparation method for preparing starch from corn, and relates to the technical field of corn deep processing. The specific operation method comprises seven steps of impurityremoval and soaking, crushing and degerming, fine grinding and screening, gluten separation, nine-stage cyclone washing, dehydration and drying, and screening and packaging. According to the invention, the technological process is complete, and in the preparation process of corn starch, corn fibers and corn protein are well reserved and prepared into a feed to be reused, so that the yield of terminal products is greatly increased, the economic value of total products is increased, and resource waste is also avoided; and the technological process is compact, and through long-time actual operation, the screened technological conditions are low in energy consumption and high in yield, so that the method is suitable for actual production.

Description

Technical field: [0001] The invention relates to the technical field of corn deep processing, in particular to a method for preparing corn starch. Background technique: [0002] Northeast China is the main producing area of ​​corn. In the past two years, Heilongjiang has ranked first with an output of nearly 40 million tons. As a food crop, corn is used as a staple food due to its rich starch content. In addition to being edible, corn starch has also been widely used in the fields of biology and chemical industry. However, the existing corn deep-processing technology has poor energy-saving effect, imperfect technological support, and insufficient utilization of "waste" in the process, which has caused excessive processing costs and energy consumption. Invention content: [0003] The purpose of the present invention is to provide a method for preparing corn starch in order to overcome the above-mentioned shortcomings in the prior art. [0004] A kind of preparation metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/04C08B30/02C07K1/14
CPCC07K1/145C08B30/02C08B30/044
Inventor 郭庆玲娄英王树军
Owner HEILONGJIANG HAOTIAN CORN DEV
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