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Method for replacing soybean meal and DDGS with cured corn steep liquor

A technology of corn steep liquor and soybean meal, which is applied in the field of waste resource utilization to achieve the effects of enriching the market, simple technological process and easy implementation

Inactive Publication Date: 2018-12-28
赵琪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention: to provide a method for solidifying corn steep liquor to replace soybean meal and DDGS, and to solve the technical problem of corn steep liquor replacing soybean meal and DDGS

Method used

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  • Method for replacing soybean meal and DDGS with cured corn steep liquor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment one: replace soybean meal

[0037] (1) Remove excess potassium from corn steep liquor. At room temperature, take 1000 g of corn steep liquor and add 30 g of tartaric acid to obtain a suspension; separate the suspension from solid and liquid to obtain 80 g of filter cake and 950 g of potassium-removing mother liquor; wash and dry the filter cake to obtain 50 g of potassium hydrogen tartrate.

[0038] (2) Remove phytic acid from corn steep liquor. Add 45g of magnesium hydroxide solids to the 950g potassium-removing mother liquor obtained in step (1) to obtain a suspension whose pH was measured to be 5.0; separate the suspension from solid-liquid to obtain 120g of filter cake and 875g of phytic acid-removing mother liquor; the filter cake was washed and dried to obtain 92 g of magnesium phytate.

[0039] (3) Removal of sulfite and aspergillus in corn steep liquor. Add 3 ml of industrial hydrogen peroxide to the 875 g of phytic acid removal mother liquor obtaine...

Embodiment 2

[0042] Example 2: Substitute for DDGS

[0043] (1) Removal of excess potassium in corn steep liquor. At room temperature, take 1000 g of corn steep liquor and add 30 g of tartaric acid to obtain a suspension; separate the suspension from solid and liquid to obtain 80 g of filter cake and 950 g of potassium-removing mother liquor; wash and dry the filter cake to obtain 50 g of potassium hydrogen tartrate.

[0044] (2) Removal of phytic acid in corn steep liquor. Add 45g of magnesium hydroxide solids to the 950g potassium-removing mother liquor obtained in step (1) to obtain a suspension whose pH was measured to be 5.0; separate the suspension from solid-liquid to obtain 120g of filter cake and 875g of phytic acid-removing mother liquor; the filter cake was washed and dried to obtain 92 g of magnesium phytate.

[0045] (3) Removal of sulfite and aspergillus in corn steep liquor. Add 3 ml of industrial hydrogen peroxide to the 875 g of phytic acid removal mother liquor obtaine...

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Abstract

The invention provides a method for replacing soybean meal and DDGS with cured corn steep liquor. Firstly, excessive toxic and anti-nutritional factors such as potassium, phytic acid, sulfite and aspertoxin in corn steep liquor are removed with a chemical method; potassium hydrogen tartrate or inorganic potassium fertilizer are obtained while excessive potassium is removed; magnesium phytate is obtained while phytic acid is removed; sulfite is removed with an oxidant, so that the sulfite is converted into sulfate, and the aspertoxin is removed simultaneously. Then, a certain mass of lysine isadded to balance nutrients of the corn steep liquor or a certain mass of a carrier is added to match the corn steep liquor. Finally, the corn steep liquor is dehydrated and cured to replace soybean meal and DDGS.

Description

technical field [0001] The invention belongs to the field of resource utilization of waste, in particular to a method for solidifying corn steep liquor to replace soybean meal and DDGS. Background technique [0002] Corn steep liquor is the concentrate of corn soaking water. Corn soaking water is the waste water produced during the wet processing of corn starch. It is a kind of acidic and high-concentration organic wastewater. The annual corn starch production in my country reaches 26 million tons, and the corn soaking water produced is 20.8 million tons. Ton. The treatment method generally adopted in China is to concentrate corn steeping water into corn steep liquor. [0003] The composition of corn steep liquor is: water 50-60%; dry matter 40-50%: crude protein 45%, reducing sugar 10%, vitamin 2%, lactic acid 18%, potassium 4%, phytic acid 2%, sulfite 0.6 %. [0004] Soybean meal and DDGS are the main high-protein feed raw materials that need to be imported in large quan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/30A23K20/142A23L5/20
CPCA23K10/30A23K20/142A23L5/27A23L5/276Y02P60/87
Inventor 赵琪
Owner 赵琪
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