Method for producing distillers' grain powder and wheat enzyme paste by using wheat distillers' grains

A technology of distiller's grain powder and wheat wine, which is applied in the direction of application, additional food elements, animal feed, etc., to achieve the effect of increasing the crude protein content

Inactive Publication Date: 2019-01-11
梁耀培 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is recorded in the literature (Grain Processing, 2017, Vol. 42, No. 2, Page 31) that vomitoxin is easily soluble in polar solvents such as water, methanol, ethanol, etc., and is resistant to heat and pressure, adding alkali and acid, high pressure and hot steam Treatment can only destroy part of its virulence

Method used

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  • Method for producing distillers' grain powder and wheat enzyme paste by using wheat distillers' grains
  • Method for producing distillers' grain powder and wheat enzyme paste by using wheat distillers' grains
  • Method for producing distillers' grain powder and wheat enzyme paste by using wheat distillers' grains

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Experimental program
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Effect test

Embodiment 1

[0054] Embodiment one: Utilize wheat distiller's grains to produce distiller's grains powder and wheat ferment paste

[0055] like figure 1 Shown, the technological process of utilizing wheat distiller's grains to produce distiller's grains powder and wheat enzyme paste is as follows.

[0056] S1. Obtain wheat distiller's grains raw material: wheat distiller's grains is wheat flour slurry fermented ethanol, the concentrated wheat distiller's grains is viscous, the color is tan or dark brown, the solid content is 25-35%, and the crude protein content (dried) 20-25%, the total sugar content (dry basis) is 35-40%, the total acid content (dry basis) is 10-15%, and the vomitoxin content (dry basis)>3ppm;

[0057] S2, 100 tons of wheat distiller's grains raw material (solid content 30%), carry out solid-liquid separation through high-pressure secondary press, obtain 50 tons of distiller's grains (solid content 45%) and 50m of distiller's grain clear liquid after separation 3 (soli...

Embodiment 2

[0065] Example 2: Effects of hemicellulase, pectinase, and β-glucanase on the viscosity of wheat distiller's grains

[0066] Take 3000g of wheat distiller's grain raw material (30% of solid content), add 3000g of water to dilute and stir evenly, and prepare distiller's grain material with 15% of solid content. Hemicellulase, 50,000 U / g pectinase, and 50,000 U / g β-glucanase were added at 0.05% of the solid content. Stir well after adding the enzyme, and place it in a water bath at 50°C to carry out the enzymolysis reaction. When the enzymolysis reaction is 0 hour, 2 hours, 4 hours, 8 hours, 10 hours, and 20 hours, the enzymolysis materials are taken for viscosity detection. Viscosity detection adopts a digital display electronic viscometer, the detection rotor is the No. 2 rotor, and the detection speed is 6 rpm. The detection results of the viscosity of wheat distiller's grains changing with enzymatic hydrolysis time are as follows: figure 2 shown.

[0067] like figure ...

Embodiment 3

[0068] Embodiment three: the concentration comparison of vomitoxin of each component

[0069] Wheat distiller's grain raw material, distiller's grains, distiller's grain clear liquid, permeate 1, permeate 2, retentate 1, and retentate 2 were used to detect the concentration of vomitoxin. The detection method adopts the DON competitive inhibition colloidal gold rapid detection card, and the detection results are shown in Table 2.

[0070] Table 2 Test results of vomitoxin concentration

[0071]

[0072]

[0073] From the test results shown in Table 2, it can be seen that after wheat distiller's grains are subjected to high-pressure secondary pressing and secondary nanofiltration membrane filtration, most of the vomitoxin enters the retentate 2, and finally collects in the retentate 2 and enters the sewage treatment system Medium discharge, convenient for further processing.

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Abstract

The invention discloses a method for producing distillers' grain powder and wheat enzyme paste by using wheat distillers' grains. The method comprises the following steps: acquiring wheat distillers'grain raw materials; performing solid-liquid separation; performing expansion drying; performing primary filtration by a nanofiltration membrane; performing enzymatic hydrolysis; performing concentration; performing secondary filtration by a nanofiltration membrane; and acquiring the wheat enzyme paste. The method has the following beneficial effects: by using a high pressure secondary pressing technique, solid-liquid separation of the wheat distillers' grains is realized, and vomitoxin is transferred into liquid by secondary pressing deep dehydration; by an enzyme preparation technique, anti-nutritional factors in the wheat distillers' grains are eliminated, the anti-nutritional factors are transformed into prebiotics, and a wheat enzyme type product is prepared by concentration and blending; and by secondary filtration by the nanofiltration membrane, the problem of excessive vomitoxin in the wheat distillers' grains is solved. The method solves the problem of treatment of the wheat distillers' grains in starch enterprises, derives two kinds of wheat distillers' grain products for feed enterprises, realizes optimization utilization of the wheat distillers' grains, and has extensive popularization application potential and huge commercial value.

Description

technical field [0001] The invention relates to the technical field of feed production, in particular to a method for producing distiller's grain powder and wheat ferment paste by utilizing distiller's grains. Background technique [0002] Distiller's grains are a by-product of yeast fermentation to produce ethanol. After wheat has extracted starch and gluten, a by-product, wheat flour slurry, is produced. Wheat flour slurry is used for yeast fermentation, and the residue left after ethanol is distilled is concentrated wheat distiller's grains. The moisture content of wheat distiller's grains is 65-70%, and it is brownish yellow or dark brown viscous. The main components are polysaccharides, organic acids and proteins, and the hemicellulose polysaccharides are mainly pentosans. [0003] Wheat distiller's grains can be used as feed ingredients for animal feeding. Wheat distiller's grain protein feed (wheat DDGS) has a high crude protein content, as recorded in the literatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/30A23K10/38A23K10/14A23K10/18A23K20/105A23K10/12
CPCA23K10/12A23K10/14A23K10/18A23K10/38A23K20/105A23K50/30Y02P60/87
Inventor 梁耀培孔祥祯周俊超莫焕强
Owner 梁耀培
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