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Sectional corn dipping method

A segmented, corn technology, applied in the field of dipping corn, can solve the problems of high cost and long time, and achieve the effect of reducing heat loss and energy consumption.

Inactive Publication Date: 2014-12-17
东郡兴邦(北京)商贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a segmented corn steeping method after many experiments and researches, which solves the problems of long time consumption and high cost in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like figure 1 Shown, the present invention comprises the steps:

[0046] Purification: the corn is cleaned to remove impurities;

[0047] Preheating: In the preheating tank, the above-mentioned purified corn and water are mixed and preheated in the ratio of corn:water=1:1.5 in parts by weight. Preheat the flowing water at 50°C-60°C, and the hot water circulation preheating time is 15 minutes to 30 minutes;

[0048] Dipping I: Put the above-mentioned preheated corn into the pressure tank with a PW-type sludge pump, and seal all the valves, use a high-pressure pump to pressurize to 1.5MP, keep the temperature at 50°C, and use a high-pressure pump to supplement the pressure every half an hour , soaked for 2 hours; make the mass percentage of the water content of the corn reach 40% to 45%;

[0049] Release the pressure and release the liquid: Release the pressure of the above impregnated materials, and put the corn and soaking water into the buffer tank at the same time,...

Embodiment 2

[0060] In the preheating step, the ratio of corn to water in parts by weight is corn:water=1:1. The hot water circulation preheating method can complete the preheating process within 15 minutes.

[0061] In the impregnation II step, dry basis and H 2 The weight and number ratio of SO3 solution is, dry basis: H 2 SO 3 Solution=1:2. Other steps are the same as in Example 1.

Embodiment 3

[0063] In the preheating step, the weight and number ratio of corn to water is corn:water=1:3. Static preheating is adopted, and the preheating process is completed within 15 minutes. Other steps are with embodiment 1

[0064] The working principle of the present invention is as follows:

[0065] The technical key point that the present invention is mainly different from the wet-dipping corn is to divide the original "one-time soaking" into "two stages", that is, "soaking I" and "soaking II" mentioned below, and moving the second stage to Before the starch separation process, the process time of the "soaking II" stage can be paralleled with the other process time courses.

[0066] The soaking I step of the present invention, its purpose is different from the existing soaking method, is only to macerate the corn and is easy to break, not for the purpose of decomposing corn gluten protein. Therefore, the whole process is that the water moves to the inside of the corn kernels ...

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Abstract

The present invention relates to a sectional corn dipping method, which comprises steps of purifying, preheating, dipping I, pressure releasing and liquid discharging, crushing, cyclone separation, rough grinding, peeling, dipping II, jetting, and fine grinding to obtain a crude starch milk. Compared to the method in the prior art, the sectional corn dipping method of the present invention has the following characteristics that: equipment investment is saved by 89.5%; pressure tank dipping can be completed within 2 hours so as to save thermal insulation energy consumption; with the pressure tank dipping, complete corn germ can be extracted so as to solve a problem of protein denaturation caused by high temperature corn oil pressing and provide feasibility foundation for production of high quality vegetable proteins by corn starch factories; and waste water containing sulfurous acid and proteins is required to be evaporated to recover the proteins, such that the total use amount is reduced by 94.4%, and pressure reduction is provided for a sewage treatment system, wherein the waste water is produced in the corn dipping process.

Description

technical field [0001] The invention relates to a method for soaking corn in a corn starch production process, in particular to a segmented corn soaking method. Background technique [0002] The impregnation mechanism in the current mainstream wet corn starch production process was proposed by Cox, MacMasters and Hibert, using the effect of sulfurous acid on corn gluten protein, and its reaction formula is: [0003] RS-SR+ SO 3 2- ---RSSO 3 - +RS - [0004] Sulfurous acid is used as the impregnating liquid, the impregnating temperature is 50°C, and the time is more than 24 hours, the protein thiosulfate can be gradually diffused and transferred to the corn steeping liquid (corn steep liquor), the protein network structure of the corn kernels is partially dispersed, and the rest is soft Easy release of starch granules for milling and separation. [0005] As the first step in the wet corn starch production process, this soaking method uses "chemical energy" to create th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B30/02
Inventor 施韧
Owner 东郡兴邦(北京)商贸有限公司
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