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Bacterial protein feed, and production process and applications thereof

A technology of cell protein and production process, which is applied in application, animal feed, animal feed, etc., can solve the problem of residual cell protein, etc., and achieve the effect of good balance, complete amino acid types, and high protein content

Inactive Publication Date: 2018-12-18
BEIJING SHOUGANG LANZATECH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a bacterial protein feed and its production process, which solves the problem of processing a large amount of bacterial protein remaining in the tower still liquid after distilling and extracting ethanol from the fermented mash after anaerobic fermentation by Clostridium ethanolus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Using CO as a raw material, the CO content is 100%, adding ammonia water, the concentration of ammonia water is 25%, using Clostridium ethanol for anaerobic fermentation, the content in the fermentation liquid is 10g / L, the fermentation process is controlled at a temperature of 35°C and a pH of 6, The pressure inside the tank is 50kpa.

[0027] The mature fermented mash is extracted ethanol through a single-stage distillation tower, and part of the heat is recovered from the tower bottom liquid through a heat exchanger, which is the ethanol Clostridium protein raw material liquid with a bacterial cell content of about 11g / L, which is stored in a raw material liquid tank.

[0028] Clostridium ethanol protein raw material liquid is separated from solid and liquid by butterfly centrifuge, the supernatant has a small cell content, and is directly discharged to the sewage treatment workshop for treatment, the cell content of the concentrated liquid is significantly increased,...

Embodiment 2

[0033] Using CO, H 2 and CO 2 As raw material, CO content is 60%, H 2 Content 10%, CO 2 Content 30%, add ammonia water, ammonia water concentration is 25%, adopt Clostridium ethanolum anaerobic fermentation, the content in the fermentation liquid is 10g / L, the fermentation process control fermentation temperature is 35 ℃, pH is 6, and the pressure in the tank is 80kpa.

[0034] Fermented mature mash, ethanol is extracted through the three-stage rectification tower, and the bacteria content of the first-stage tower liquid is about 11g / L. After recovering part of the heat through the heat exchanger, it is used as the raw material liquid of Clostridium ethanol protein and stored until the raw material liquid Tanks, the second and third-stage towers have a low concentration of bacteria, and they are directly discharged to the sewage treatment workshop.

[0035] Clostridium ethanol protein raw material liquid is separated from solid and liquid by butterfly centrifuge. The light ...

Embodiment 3

[0040] Using CO and H 2 As raw material, CO content is 80%, H 2 Content 20%, add ammonia water, the concentration of ammonia water is 25%, adopt Clostridium ethanolum anaerobic fermentation, the content in the fermentation liquid is 15g / L, the fermentation process control fermentation temperature is 35 ℃, pH is 5.5, and the pressure in the tank is 100kpa.

[0041] Fermented and mature mash, ethanol is extracted through a three-stage rectification tower, and the bacterial content of the first-stage tower liquid is about 16g / L. After recovering part of the heat through a heat exchanger, it is used as a raw material liquid of Clostridium ethanol protein and stored until the raw material liquid Tanks, the second and third-stage towers have a low concentration of bacteria, and they are directly discharged to the sewage treatment workshop.

[0042] Clostridium ethanol protein raw material liquid is separated from solid and liquid by butterfly centrifuge. The light phase bacteria co...

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Abstract

The invention relates to a bacterial protein feed, a production process and applications thereof. The bacterial protein feed contains clostridium autoethanogenum which can be used for animal feeds. The production process of the bacterial protein feed includes the following steps: preparation of raw material gas containing CO, clostridium autoethanogenum fermentation, distillation, solid-liquid separation, drying, inspection and packaging so as to obtain the clostridium autoethanogenum protein feed. The bacterial protein feed obtained by the process of the invention is a single strain, and is high in product purity and rich in 18 amino acids and all amino acids necessary for animals, and the clostridium autoethanogenum protein can be used as an animal feed raw material. The feed is green and environmentally friendly in production process, and is free from antibiotic and pesticide residue compared with traditional plant proteins or animal proteins.

Description

technical field [0001] The invention relates to a bacterial protein feed, a production process and its application, in particular to a clostridium ethanol protein feed, a production process and its application, and belongs to the field of animal feed. Background technique [0002] Basic oxygen steelmaking (LDG reformer) process produces 70% CO, 1-2% H 2 and 10-15% CO 2 Comprising significant volumes of off-gas that are also suitable for biofuel production using indirect fermentation methods. [0003] To contain CO, CO 2 、H 2 The gas is used as the raw material, and the fermentation mash after anaerobic fermentation of Clostridium autoethanogenum (Clostridium autoethanogenum) is used. After distilling and extracting ethanol, the bottom liquid of the distillation tower contains a large amount of bacterial protein. The chemical oxygen demand is obviously high, the treatment is difficult and the cost is high. [0004] After being separated and dried by the method of the pre...

Claims

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Application Information

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IPC IPC(8): A23K10/12A23K20/147
CPCA23K10/12A23K20/147
Inventor 夏楠李龙伟王晓东宋庆坤莫志朋佟淑环宋鑫艳李天琪
Owner BEIJING SHOUGANG LANZATECH TECH CO LTD
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