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A kind of method of soaking corn in cornstarch production process

A production process, corn soaking technology, applied in the field of corn deep processing, can solve the problems of SO2 gas health hazards, long soaking time, serious pollution, etc., and achieve the effects of shortening soaking time, reducing energy consumption, and increasing yield

Inactive Publication Date: 2016-05-18
洛阳福切尔生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of long soaking time, high cost, low efficiency, high energy consumption, serious pollution, and the release of SO2 gas that is harmful to people's health in the corn wet processing technology in the prior art, the present invention provides a corn soaking method , can greatly shorten the soaking time, the soaking time is shortened from more than 60 hours in the past to 6 hours, the energy consumption of corn soaking is reduced to 50%, the sewage is reduced to 20%, and the yield of corn starch is increased by 1% on average

Method used

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  • A kind of method of soaking corn in cornstarch production process

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Effect test

Embodiment 1

[0013] Accurately weigh 500g of hard-toothed corn, add water according to the ratio of corn:water=1:1, put it in a constant temperature water bath at 50°C, soak for 3 hours; filter out the soaking water, and use a grinder to crush it into roughly 4-8 pieces, then Add acid protease at 15000U / (100g corn), add cell penetrating agent dioctyl maleate sodium sulfonate at 0.1g / (100mL water), adjust the pH to 3.0 with hydrochloric acid, and place in a water bath shaker at 50°C Shake and soak for 4 hours, take the soaking solution 1 for later use; add appropriate amount of water to the second-soaked corn, use a glass rod continuously to separate the germ from the bottom, and gradually float to the upper layer under the action of buoyancy, separate it with a sieve, and Rinse the germ with water, wash away the attached starch, collect the lotion 1 and the filtrate 1 for later use; mix the corn separated from the germ with the previous reserve liquid, and refine it through a colloid mill, ...

Embodiment 2

[0015] Accurately weigh 500g of dent corn, add water according to the ratio of corn:water=4:5, put it in a constant temperature water bath at 50°C, soak for 3h; Add acid protease at 17800U / (100g corn), add cell penetrating agent dioctyl maleate sodium sulfonate at 0.1g / (100mL water), adjust the pH to 3.0 with hydrochloric acid, and place in a water bath shaker at 50°C Shake and soak for 4 hours, take the soaking solution 1 for later use; add appropriate amount of water to the second-soaked corn, use a glass rod continuously to separate the germ from the bottom, and gradually float to the upper layer under the action of buoyancy, separate it with a sieve, and Rinse the germ with water, wash away the attached starch, collect the lotion 1 and the filtrate 1 for later use; mix the corn separated from the germ with the previous reserve liquid, and refine it through a colloid mill, and absorb the residue in the mill; pass through a 100-mesh sieve, Separating the filter residue to ob...

Embodiment 3

[0017] Accurately weigh 500g of half-dent corn, add water according to the ratio of corn:water=1:2, place it in a constant temperature water bath at 60°C, soak for 3 hours; filter out the soaking water, and use a grinder to crush it into roughly 4-8 pieces, Then add acid protease at 15000U / (100g corn), add cell penetrating agent 2-2-octyl maleate sodium sulfonate at 0.5g / (100mL water), and adjust the pH to 3.0 with hydrochloric acid, and shake in a water bath at 60°C Soak in medium vibration for 4 hours, take the soaking solution 1 for later use; add appropriate amount of water to the second soaked corn, use a glass rod continuously to separate the germ from the bottom, and gradually float to the upper layer under the action of buoyancy, and separate it with a sieve. And rinse the germ with water, wash off the attached starch, collect the lotion 1 and filtrate 1 for later use; mix the corn after the germ separation and the previous standby liquid, and refine it through a colloi...

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Abstract

The invention provides a method for steeping corn in the production process of corn starch. The method comprises the following steps: (1) taking corn (flint corn, dent corn or half-dent corn) as a raw material, adding water at the water-to-corn ratio of (1-2):1, and performing primary steeping for water absorption at 40-60 DEG C; (2) after coarsely crushing, adding a proper amount of acid proteinase and a proper amount of cell penetrant (sodium di-sec-octyl maleate sulfonate) to accelerate immersion of enzyme; (3) performing separation through a screen mesh to remove germs; (4) performing mixing and fine milling through a colloid mill, and removing peel through a 100-mesh sieve to obtain paste to obtain a mixture of starch and protein; (5) performing centrifugal separation, collecting protein and starch respectively, and drying protein and starch at 50DEG C. According to the method, the cell penetrant is utilized to promote immersion of enzyme and accelerate separation of starch so as to shorten the steeping time to further simplify the production technology of corn starch; the technology is simple, the cost is low, after-treatment is convenient and the extraction ratio of starch is high.

Description

technical field [0001] The invention relates to the technical field of corn deep processing, in particular to a method for soaking corn in the production process of corn starch. Background technique [0002] Corn is one of the most important food crops in our country and even in the world. The production and consumption of corn is constantly promoting the rapid development of world agriculture. It not only supports the survival of many human beings as a food crop, but also serves as a kind of An important industrial raw material, it is widely used in the production of corn starch. [0003] At present, the processing methods for the separation and purification of cornstarch that have achieved industrialized large-scale production at home and abroad are generally used in two methods: wet method and dry method. Compared with the wet preparation process, in the dry corn starch production, the extraction rate of starch is relatively low, and there are certain difficulties in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B30/02C08B30/04
Inventor 杨铭乾苏雪锋冯军伟侯银臣游倩倩王文刁大鹏
Owner 洛阳福切尔生物科技有限公司
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