Method for preparing liquid soil conditioner from amino acid waste liquid

A soil conditioner and amino acid technology, applied in the field of lysine production, can solve the problems of increased production cost, large investment, complicated process, etc., and achieve the effects of increasing value, good effect and improving extraction rate

Pending Publication Date: 2021-12-07
HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of terminal treatment is used to remove peculiar smell, although it has a good effect, but the investment is large and the process is complicated, which greatly increases the production cost and has not been widely recognized.

Method used

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  • Method for preparing liquid soil conditioner from amino acid waste liquid
  • Method for preparing liquid soil conditioner from amino acid waste liquid
  • Method for preparing liquid soil conditioner from amino acid waste liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. High-speed disc separation of fermentation broth

[0026] To explore the feasibility of disc separation fermentation broth, take 1000L of fermentation broth, add chitosan 100g, stir at 500rpm for 30s, let it stand for 3min, then set the speed of high-speed disc separator at 5000r / min, by changing the feed flow rate, detect different Supernatant protein dry matter content under the feed flow rate, test the optimal feed flow rate under the rotating speed of 5000r / min. See Table 1 for details:

[0027] Table 1

[0028]

[0029] According to comprehensive experimental analysis, the optimal feed rate is 300-400L / h at the speed of 5000r / min of the high-speed disc separator. At this speed, there are more dry protein, less time-consuming and less energy consumption.

[0030] The removal rates of bacteria with and without chitosan were 98.5% and 87.1%, respectively. The invention does not need to add a large amount of chitosan to form a large floc, but only needs a smal...

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Abstract

The invention belongs to the technical field of lysine production, and discloses a method for preparing a liquid soil conditioner from amino acid waste liquid, which comprises the following steps: 1) taking glutamic acid fermentation liquor, adding chitosan, then arranging a high-speed disc separator for separation, and collecting clear liquid and mycoprotein precipitate; 2) taking clear liquid separated by the high-speed disc separator, conducting concentrating, then adding sulfuric acid to adjust the pH value, conducting cooling and standing, conducting centrifuging to obtain glutamic acid crystals, adding a sodium carbonate aqueous solution into the glutamic acid crystals for dissolving and neutralizing, conducting evaporating and crystallizing, and centrifugally separating monosodium glutamate; 3) evaporating the mycoprotein precipitate until the dry matter content is 25% by weight, and conducting granulating in a fluidized bed spray granulator to obtain protein particles; and 4) adding the waste liquid generated in the protein concentration process into the concentrated isoelectric residual waste liquid to prepare the liquid soil conditioner.

Description

technical field [0001] The invention relates to a method for recovering ammonium sulfate in lysine separation waste liquid, belonging to the technical field of lysine production. [0002] technical background [0003] Sodium glutamate is commonly known as monosodium glutamate. As a food condiment, it has the effect of increasing freshness and flavor. With the gradual improvement of people's living standards, it is widely welcomed by the market, especially the rise of emerging markets such as Europe and the United States, so that the demand for sodium glutamate is increasing. Skyrocketing, the market prospect is good. At present, the method of industrial production of glutamic acid in major enterprises is mainly biological fermentation, that is, cultivating strains through microbial fermentation, preparing fermentation broth containing glutamic acid, and then extracting glutamic acid from the fermentation broth by isoelectric cross-over method , and then generate sodium gluta...

Claims

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Application Information

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IPC IPC(8): C09K17/40
CPCC09K17/40C09K2109/00
Inventor 刘元涛赵兰坤王小平孙钦波侍述志封慧戎张婷婷张传松
Owner HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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