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Compound enzyme preparation, method for preparing feed from compound enzyme preparation and animal feed

A compound enzyme preparation and feed technology, which is applied in the field of compound enzyme preparation and animal feed, and the use of it to prepare feed can solve the problems of long production cycle and unqualified product nutritional indicators, so as to improve production efficiency, improve palatability and nutritional content The content and the effect of shortening the autolysis time

Inactive Publication Date: 2018-03-27
WUHAN SUNHY BIOLOGICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improper use of enzyme preparations during yeast autolysis will result in long production cycles and unqualified product nutritional indicators. Therefore, the process control points of adding enzyme preparations to the autolysis of waste beer yeast still need to be strictly explored and experimentally optimized.

Method used

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  • Compound enzyme preparation, method for preparing feed from compound enzyme preparation and animal feed

Examples

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Effect test

Embodiment 1

[0054] This example provides a compound enzyme preparation, which is prepared by compounding alkaline protease and flavor protease at a mass ratio of 2:1. Among them, alkaline protease is composed of keratinase, papain and cellulase with a mass ratio of 10:1:1; flavor protease is composed of neutral protease and aminopeptidase with a mass ratio of 1:3:6 and maltodextrin.

[0055] This embodiment also provides a method for preparing feed using a compound enzyme preparation, which includes: taking a certain quality of beer waste yeast, preparing it into a yeast liquid with a concentration of 15%, and adjusting the pH of the yeast liquid to 6.4 after dissolving evenly Afterwards, add 0.7% ethyl acetate as a solubilizing agent according to the dry weight of spent beer yeast. The solution is preheated to 53°C, the amount of the compound enzyme preparation added is 0.2% of the dry weight of the spent beer yeast, the pH is controlled to be about 5.8 during the reaction, and the enzy...

Embodiment 2

[0057] This example provides a compound enzyme preparation, which is prepared by compounding alkaline protease and flavor protease at a mass ratio of 7:4. Among them, alkaline protease is composed of keratinase, papain and cellulase with a mass ratio of 11:2:2; flavor protease is composed of neutral protease and aminopeptidase with a mass ratio of 2:4:7 and maltodextrin.

[0058] This embodiment also provides a method for preparing feed using a compound enzyme preparation, which includes: taking a certain quality of beer waste yeast, preparing it into a yeast liquid with a concentration of 11%, and adjusting the pH of the yeast liquid to 6.5 after dissolving evenly Afterwards, add 0.5% of ethyl acetate as a solubilizing agent according to the dry weight of spent beer yeast. The solution is preheated to 55°C, the amount of the compound enzyme preparation added is 0.35% of the dry weight of the spent beer yeast, the pH is controlled to be about 5.5 during the reaction, and the ...

Embodiment 3

[0060] This example provides a compound enzyme preparation, which is prepared by compounding alkaline protease and flavor protease at a mass ratio of 5:3. Among them, alkaline protease is composed of keratinase, papain and cellulase with a mass ratio of 12:1:2; flavor protease is composed of neutral protease and aminopeptidase with a mass ratio of 2:3:6 and maltodextrin.

[0061] This embodiment also provides a method for preparing feed using a compound enzyme preparation, which includes: taking a certain quality of beer waste yeast, preparing it into a yeast liquid with a concentration of 28%, and adjusting the pH of the yeast liquid to 6.2 after dissolving evenly Afterwards, add 1.0% of ethyl acetate as a solubilizing agent according to the dry weight of spent beer yeast. The solution is preheated to 50°C, the amount of the compound enzyme preparation added is 0.5% of the dry weight of the spent beer yeast, the pH is controlled to be about 6.5 during the reaction, and the e...

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Abstract

The invention provides a compound enzyme preparation, a method for preparing a feed from the compound enzyme preparation and an animal feed, and relates to the field of preparation of feeds. The compound enzyme preparation is compounded from alkali protease and flavored protease, wherein the mass ratio of the alkali protease to the flavored protease is (3 to 1) to (4 to 3), the alkali protease iscompounded from keratinase, papain and cellulase, and the flavored protease is compounded from neutral protease, aminopeptidase and maltodextrin. The method comprises the following steps of compounding beef waste yeast as a raw material into a yeast solution with a preset concentration, performing uniform dissolving, adding ethyl acetate, preheating the yeast solution, adding the compound enzyme preparation, performing an enzymolysis reaction to obtain enzymatic hydrolysate, and performing spray drying on the enzymatic hydrolysate. According to the compound enzyme preparation, the method for preparing the feed from the compound enzyme preparation and the animal feed disclosed by the invention, shortening of the self-dissolving time of yeast is facilitated, the enzymolysis degree is increased, the palatability of a yeast self-dissolving animal feed is improved, besides, the content of small-molecule nutrient components in the feed is increased, and the industrial production efficiency is improved.

Description

technical field [0001] The invention relates to the field of feed preparation, in particular to a compound enzyme preparation, a method for preparing feed using the compound enzyme preparation and animal feed. Background technique [0002] At present, animal feed in my country's domestic market mainly includes soybean meal, corn miscellaneous grains, fish meal, meat and bone meal, amino acids, and functional feed additives. Protein is the main nutritional component in animal feed, generally accounting for about 20% of animal feed. Beer waste yeast is rich in nutrients, and amino substances can reach about 40%, which is a good protein source for animal feed. my country is a big country of beer production, and the waste yeast discharge after brewing is huge, generally accounting for about 3% of beer production, which not only causes a serious waste of resources, but also destroys the ecological environment. Therefore, the synthesis of waste yeast in beer Utilization is a tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/189
CPCA23K20/189
Inventor 向宇熊晓燕王冠周樱谌颉
Owner WUHAN SUNHY BIOLOGICAL
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