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Process for extracting mycoprotein from glutamic acid-fermented waste fluid

A technology for fermenting waste liquid and bacterial protein, which is applied in microorganism-based methods, biochemical equipment and methods, bacteria, etc., can solve the problems of long time consumption, small processing capacity, large energy consumption, etc., and achieves simple and easy operation, The effect of reducing production energy consumption and saving energy consumption

Inactive Publication Date: 2013-11-06
BAOJI FUFENG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional extraction methods mainly include: 1. Mechanical centrifugation, which consumes a lot of energy and requires high equipment; 2. Separation by flocculation, which consumes a large amount of flocculant, and the process takes a long time, and the product must contain flocculant, which is not conducive to Further development and application; 3. Heating method, which takes a long time and is not conducive to continuous and large-scale treatment of waste liquid; 4. Membrane method, which has high requirements for membranes, large continuous investment, and relatively small processing capacity

Method used

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Examples

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Effect test

Embodiment 1

[0016] A method for extracting bacterial protein from glutamic acid fermentation waste liquid, comprising the following steps:

[0017] 1) Use the steam of the thermal power plant to heat the glutamic acid fermentation waste liquid, make the temperature reach 80 ℃, keep it warm for 30 minutes, and obtain the denatured bacterial cell solution;

[0018] 2) Pump the denatured bacteria solution into the disc centrifuge with a feeding volume of 15m 3 / L, after centrifuging at a speed of 3000r / min for 13min, the precipitate was taken to obtain bacterial protein.

Embodiment 2

[0020] A method for extracting bacterial protein from glutamic acid fermentation waste liquid, comprising the following steps:

[0021] 1) Use the steam of the thermal power plant to heat the glutamic acid fermentation waste liquid, make the temperature reach 85°C, keep it warm for 25 minutes, and obtain the denatured bacterial cell solution;

[0022] 2) Pump the denatured bacteria solution into the disc centrifuge with a feeding volume of 15m 3 / L, after centrifuging at a speed of 2500r / min for 15min, the precipitate was taken to obtain bacterial protein.

Embodiment 3

[0024] A method for extracting bacterial protein from glutamic acid fermentation waste liquid, comprising the following steps:

[0025] 1) Use the steam of the thermal power plant to heat the glutamic acid fermentation waste liquid, make the temperature reach 90 ℃, keep it warm for 20 minutes, and obtain the denatured bacterial cell solution;

[0026] 2) Pump the denatured bacteria solution into the disc centrifuge with a feeding volume of 20m 3 / L, after centrifuging at a speed of 2500r / min for 15min, the precipitate was taken to obtain bacterial protein.

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PUM

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Abstract

The invention discloses a process for extracting mycoprotein from a glutamic acid-fermented waste fluid and belongs to the technical field of processing of glutamic acid-fermented waste fluids. The process comprises the steps of 1) using production waste heat to heat the glutamic acid-fermented waste fluid to 80-120 DEG C, keeping the temperature for 20-40 min, and obtaining a modified bacteria solution; 2) pumping the modified bacteria solution into a centrifugal machine, obtaining deposits after centrifugation, and obtaining the mycoprotein. The process is simple and easy to operate, capable of saving energy consumption, environmentally friendly and applicable to large-scale industrial production, the extraction ratio of mycoprotein products extracted according to the process reaches 90-95%, and the water content is low.

Description

technical field [0001] The invention belongs to the technical field of glutamic acid fermentation waste liquid treatment, and in particular relates to a method for extracting bacterial protein from glutamic acid fermentation waste liquid. Background technique [0002] my country is a big producer of monosodium glutamate, and its annual output ranks first in the world. The concentration of COD (chemical oxygen demand) and BOD (biological oxygen demand) in the glutamic acid waste liquid produced in the production of monosodium glutamate is 40g / L-80g / L and 20g / L-30g / L respectively, and the pH value is 3.2, it also contains about 0.5% reducing sugar and about 1% glutamic acid bacteria and other substances. If the waste liquid produced by the monosodium glutamate industry is discharged directly, it will seriously pollute the environment. It is industrial and environmental protection to produce single-cell protein with waste liquid from monosodium glutamate factory A powerful mea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12R1/15
Inventor 来凤堂赵兰坤刘化丹张传松王永辉
Owner BAOJI FUFENG BIOTECH
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