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Fermentation method for optimizing hydrolyzed feather meal

A technology of hydrolyzing feather powder and fermentation method, applied in the direction of microorganism-based methods, biochemical equipment and methods, fermentation, etc., can solve the problems of keratin optimization and cumbersome fermentation process, and achieve improved absorption, simple fermentation process, and energy consumption low effect

Active Publication Date: 2022-06-03
山东泰山生力源集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problems that it is impossible to optimize the overall protein resources while degrading keratin, improve the quality of protein resources and the fermentation process is too cumbersome, the present invention provides a fermentation method for optimizing hydrolyzed feather meal

Method used

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  • Fermentation method for optimizing hydrolyzed feather meal
  • Fermentation method for optimizing hydrolyzed feather meal

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A fermentation method for optimizing hydrolyzed feather fraction, the fermentation process comprises:

[0024] (1) Mix the completely dried bran with water to prepare a bran medium with a water content of 48%, cook the bran medium at 121°C for 30 minutes for curing and sterilization, then rapidly cool to 30°C, adjust PH is 6.5, such condition is beneficial to the growth of Aspergillus oryzae to be inoculated;

[0025] (2) Inoculate the Aspergillus oryzae species preserved in the China Industrial Microorganism Culture Collection and Management Center with the preservation number of CICC 2013 on the processed bran medium, and the inoculation amount is 0.5% of the dry mass of the bran medium. Control Appropriate inoculum size contributes to better growth in Aspergillus oryzae;

[0026] (3) Carry out aerobic fermentation of the inoculated Aspergillus oryzae and maintain good ventilation. The fermentation conditions are to control the ambient temperature to 30°C and the fer...

Embodiment 2

[0031] A fermentation method for optimizing hydrolyzed feather fraction, the fermentation process comprises:

[0032] (1) Mix the completely dried bran with water to prepare a bran culture medium with a water content of 48%, cook the bran culture medium at 121°C for 30 minutes for curing and sterilization, then rapidly cool it to 30°C, adjust PH is 6.5, such condition is beneficial to the growth of Aspergillus oryzae to be inoculated;

[0033] (2) Inoculate the Aspergillus oryzae species preserved in the China Industrial Microorganism Culture Collection and Management Center with the preservation number of CICC 2013 on the processed bran medium, and the inoculation amount is 0.5% of the dry mass of the bran medium. Control Appropriate inoculum size contributes to better growth in Aspergillus oryzae;

[0034] (3) Carry out aerobic fermentation of the inoculated Aspergillus oryzae and maintain good ventilation. The fermentation conditions are to control the ambient temperature ...

Embodiment 3

[0039] A fermentation method for optimizing hydrolyzed feather fraction, the fermentation process comprises:

[0040] (1) Mix the completely dried bran with water to prepare a bran culture medium with a water content of 48%, cook the bran culture medium at 121°C for 30 minutes for curing and sterilization, then rapidly cool it to 30°C, adjust PH is 6.5, such condition is beneficial to the growth of Aspergillus oryzae to be inoculated;

[0041] (2) Inoculate the Aspergillus oryzae species preserved in the China Industrial Microorganism Culture Collection and Management Center with the preservation number of CICC 2013 on the processed bran medium, and the inoculation amount is 0.5% of the dry mass of the bran medium. Control Appropriate inoculum size contributes to better growth in Aspergillus oryzae;

[0042] (3) Carry out aerobic fermentation of the inoculated Aspergillus oryzae and maintain good ventilation. The fermentation conditions are to control the ambient temperature ...

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Abstract

The invention discloses a fermentation method for optimizing hydrolyzed feather meal, and belongs to the field of animal feed production, and the method comprises the following steps: inoculating an aspergillus oryzae strain on a culture medium, and carrying out ventilated aerobic culture on the aspergillus oryzae strain to prepare an aerobic fermentation product containing rich enzyme systems; mixing the obtained aerobic fermentation product with hydrolyzed feather meal and digestive juice in proportion to prepare an anaerobic fermentation culture medium; standing and fermenting the anaerobic fermentation culture medium; and performing finished product treatment on the final anaerobic fermentation product to obtain a high-quality protein feed finished product. According to the technical scheme disclosed by the invention, the problem that a large number of protein resources in the hydrolyzed feather meal cannot be absorbed and utilized is well solved, the treatment process is simple and easy to operate, and the hydrolyzed feather meal is applied to the livestock breeding industry as a higher-quality protein feed.

Description

technical field [0001] The invention belongs to the field of animal feed production, in particular to a fermentation method for optimizing hydrolyzed feather meal. Background technique [0002] The main source of protein feed in traditional animal husbandry is imported fish meal, but imported fish meal is expensive and of uneven quality. Therefore, my country has developed a new type of protein feed resource to make up for the drawbacks of imported fish meal. This new type of protein feed is hydrolyzed feather meal, which is made by hydrolyzing and processing poultry feathers. The content of crude protein in hydrolyzed feather meal is high, and the main component is keratin, which has a dense structure and is not easy to be degraded. Not only the in vitro digestibility of the product is not high, but the quality of the protein resources in it will also be compromised. [0003] In Chinese patent CN201910399311.2, a method for fermenting and hydrolyzing feather meal using Pic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P1/02C12P21/06C12R1/69
CPCC12P1/02C12P21/06Y02P60/87
Inventor 孙传飞李军训徐启民刘松松左志琼
Owner 山东泰山生力源集团股份有限公司
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