Energy-saving, emission-reducing and high-efficiency corn starch processing method

The technology of a corn starch and a processing method, which is applied in the field of food processing, can solve the problems of high energy consumption, low production efficiency of corn starch, and large sewage, and achieve the effects of reducing waste water discharge, saving soaking time, and saving water resources and electric energy.

Inactive Publication Date: 2018-09-21
黑龙江省农业科学院食品加工研究所
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] Aiming at the current problems of low production efficiency of cornstarch extraction, large sewage discharge and high energy consumption, the present invention provides an energy-saving, emission-reducing and high-efficiency cornstarch processing method, comprising the following steps:

Method used

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  • Energy-saving, emission-reducing and high-efficiency corn starch processing method

Examples

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Effect test

Embodiment 1

[0028] The processing method of embodiment 1. cornstarch.

[0029] 1) Crushing and grinding of corn kernels: take 10kg of corn kernels, clean up the impurities, use corn dregs processing equipment to crush and grind corn kernels, remove the germ and cortex, and collect the mixture of germ and cortex for feed processing .

[0030] 2) Grinding: Grinding the corn kernels with germ and cortex removed into 20-mesh fine powder.

[0031] 3) Soaking: Preparation of sulfurous acid: burn sulfur to generate sulfur dioxide, then absorb sulfur dioxide with water to generate sulfurous acid solution; soak corn flour with 30L sulfurous acid solution with a mass fraction of 0.2%, soak at 48°C for 8 hours.

[0032] 4) Fine grinding: refining the sulfurous acid soaking solution containing corn flour in step 3), the mesh size is 100 mesh, and separating the starch to obtain starch slurry.

[0033] 5) Centrifugal dehydration: The starch slurry is subjected to centrifugal dehydration at a rotatio...

Embodiment 2

[0035] The processing method of embodiment 2. cornstarch.

[0036] 1) Crushing and grinding of corn kernels: take 10kg of corn kernels, clean up the impurities, use corn dregs processing equipment to crush and grind corn kernels, remove the germ and cortex, and collect the mixture of germ and cortex for feed processing .

[0037] 2) Grinding: Grinding the corn kernels with germ and cortex removed into 20-mesh fine powder.

[0038] 3) Soaking: Preparation of sulfurous acid: burn sulfur to generate sulfur dioxide, then absorb sulfur dioxide with water to generate sulfurous acid solution; soak corn flour with 30L sulfurous acid solution with a mass fraction of 0.25%, soak at 50°C for 6h.

[0039] 4) Fine grinding: refining the sulfurous acid soaking solution containing corn flour to a mesh size of 110 mesh, separating the starch to obtain starch slurry.

[0040] 5) Centrifugal dehydration: The starch slurry is subjected to centrifugal dehydration at a speed of 7500r / min for 15 ...

Embodiment 3

[0042] The processing method of embodiment 3. cornstarch.

[0043] 1) Crushing and grinding of corn kernels: take 10kg of corn kernels, clean up the impurities, use corn dregs processing equipment to crush and grind corn kernels, remove the germ and cortex, and collect the mixture of germ and cortex for feed processing .

[0044] 2) Grinding: Grinding the corn kernels with germ and cortex removed into 20-mesh fine powder.

[0045] 3) Soaking: Preparation of sulfurous acid: burn sulfur to generate sulfur dioxide, then absorb sulfur dioxide with water to generate sulfurous acid solution; soak corn flour with 30L sulfurous acid solution with a mass fraction of 0.3%, soak at 52°C for 4h.

[0046] 4) Fine grinding: refining the sulfurous acid soaking solution containing corn flour to a mesh size of 120, separating the starch to obtain starch slurry.

[0047] 5) Centrifugal dehydration: the starch slurry is subjected to centrifugal dehydration at a speed of 10000 r / min for 20 minu...

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Abstract

The invention relates to an energy-saving, emission-reducing and high-efficiency corn starch processing method, and belongs to the technical field of food processing. The invention provides an energy-saving, emission-reducing and high-efficiency corn starch processing method at the aim of solving the problems of low production efficiency, high energy consumption and serious pollution discharge ofcorn starch extraction at present. The method comprises the following steps: removing germs and cortices from corn kernels by a dry method, carrying out crushing to obtain corn flour, soaking the cornflour in a sulfurous acid solution with a mass fraction of 0.2-0.3%, and carrying out defibrination, centrifugal dehydrating and drying to obtain corn starch. The method provided by the invention issuitable for processing corn starch.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to an energy-saving, emission-reducing and high-efficiency corn starch processing method. Background technique [0002] Corn is one of the main food crops in our country, and the starch content in corn is as high as about 70%, so it is widely used to produce corn starch. Corn starch can produce glucose, high maltose syrup, high fructose syrup, cyclodextrin, maltose modified starch, widely used in medicine, food, chemical industry, textile and other industries, and can also be used as raw material for enzyme production, monosodium glutamate, amino acid and Raw materials for antibiotic fermentation, etc. my country's traditional wet corn starch production process, such as figure 1 As shown, 0.2%-0.3% sulfurous acid is usually used as the soaking solution, and the corn kernels are soaked at (50±2)°C for 48-60h, the kernels become soft, the starch is separated, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/04C08B30/02C08B30/06
Inventor 任传英卢淑雯洪滨王丽群王凯谢学军周野崔怡娟姚鑫淼管立军
Owner 黑龙江省农业科学院食品加工研究所
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