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Method for removing zearalenone in corn germ meal

A technology for zearalenone and corn germ meal, applied in the field of removing zearalenone in corn germ meal, can solve the problems of chemical detoxification, unclear detoxification effect, poor repeatability, etc. good reproducibility

Pending Publication Date: 2020-10-30
SHANDONG SANXING CORN IND SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical method mainly has the following disadvantages in the use process: one is the concentration of the reagent, and the chemical reagent has the disadvantage of reagent residue, so the amount of the reagent is the key; the other is that it is difficult to achieve a balance between the reagent and the detoxification effect , that is to say, how to achieve a high degree of detoxification without residue is a technical difficulty; third, the existing chemical detoxification method has poor stability and poor repeatability of the detoxification effect, and cannot stabilize detoxification. Toxic effect is unclear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The preparation method of corn germ meal:

[0024] In Examples 1-3 of the present invention, the preparation method of the corn germ meal used is as follows: use corn germ as raw material, obtain corn germ cake by pressing at a temperature of 120° C., and soak the corn germ cake in an 80% n-hexane solution. After extracting for 4.5 hours, corn germ meal was obtained.

[0025] In Examples 4-6 of the present invention, the preparation method of the corn germ meal used is as follows: using corn germ as raw material, the corn germ cake is obtained by pressing at a temperature of 110° C., and the corn germ cake is immersed in an 80% n-hexane solution After extracting for 6 hours, corn germ meal was obtained.

[0026] In Examples 7-9 of the present invention, the preparation method of the corn germ meal used is as follows: use corn germ as raw material, obtain corn germ cake by pressing at a temperature of 130° C., and soak the corn germ cake in an 80% n-hexane solution. Af...

Embodiment 1

[0040] The corn germ meal obtained by pressing and leaching the germ of Hengren factory, the content of zearalenone in the corn germ meal is 1217μg / kg, the pH is 6.2, and the initial moisture is 5.2%. It is transported from the feeding port to the At the hoist, lift it up to the measuring scale for weighing. The quality of corn germ meal is 1.01 tons; the concentration of sodium hydroxide is 28%, and the addition amount is added according to the mass ratio of sodium hydroxide solution to corn germ meal is 15:100 , spray evenly on the corn germ meal under the condition of rotating speed of 22r / min, so that the lye can evenly adhere to the surface of the corn germ meal, after spraying, place it in a sealed place at 38°C for 18 minutes, and transfer it to a steamer. Control the pressure at 2.5Mpa, heat to 110°C, and detoxify for 15min at a speed of 35r / min;

[0041] After detoxification, adjust the moisture in the corn germ meal to be 17%, under the rotating speed of 70r / min, acc...

Embodiment 2

[0044] The corn germ meal obtained by pressing and leaching the germ of Hengren factory is tested. The content of zearalenone in the corn germ meal is 1029μg / kg, the pH is 6.1, and the initial moisture is 8.7%. It is transported from the feeding port through the auger to At the hoist, lift it up to the measuring scale for weighing. The quality of corn germ meal is 1.02 tons; the concentration of sodium hydroxide is 33%, and the addition amount is added according to the mass ratio of sodium hydroxide solution to corn germ meal is 10:100 , spray evenly on the corn germ meal under the condition of rotating speed of 20r / min, so that the lye can evenly adhere to the surface of the corn germ meal, after spraying, place it in a sealed place at a temperature of 30°C for 12 minutes, and transfer it to a steamer. Heat to 100°C, detoxify for 20 minutes under the conditions of rotation speed 20r / min and pressure 2.5Mpa.

[0045] After detoxification, adjust the moisture in the corn germ m...

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PUM

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Abstract

The invention provides a method for removing zearalenone in corn germ meal. The method comprises the following steps: prepariation of a solution, namely preparing a sodium hydroxide solution; detoxification pretreatment: mixing a sodium hydroxide solution and corn germ meal according to the mass ratio of (10-20): 100; adopting a treatment mode of spraying and stirring at the same time, and hermetically placing for 10-25 minutes under the temperature condition of 30-45 DEG C; detoxification treatment: controlling the temperature and the pressure, and detoxifying the treated maize germ meal for10-20 minutes; treatment after detoxifying: adjusting the moisture content in the detoxified corn germ meal, and adding succinic acid, and the mass ratio of the moisture-adjusted corn germ meal to thesuccinic acid is 100: (6-8). The method has the advantages of being high in zearalenone removal rate, free of reagent residues, high in repeatability and high in stability.

Description

technical field [0001] The invention relates to the technical field of corn germ meal treatment, in particular to a method for removing zearalenone in corn germ meal. Background technique [0002] Zearalenone can pollute corn, and its detection rate in corn is over 40%. It cannot be completely removed during the processing from corn to corn germ meal. Therefore, corn germ meal also contains certain amount of zearalenone. The existence of zearalenone will have adverse effects on livestock and poultry, for example, it may cause abortion and deformity in pregnant animals. Therefore, the removal of zearalenone is a problem that must be solved. [0003] In the prior art, methods for removing zearalenone include physical methods, chemical methods and biological methods, wherein the physical method has the disadvantage of low toxin removal rate, the chemical method has the disadvantage of reagent residue, and the biological method has the disadvantage of detoxification. The enzym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L5/20
CPCA23L5/276A23L5/21A23L5/20A23L5/27A23V2002/00A23V2250/1614A23V2250/02A23V2300/24
Inventor 王月华刘玉兰成良玉毕小兰程芳园
Owner SHANDONG SANXING CORN IND SCI CO LTD