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Method of using ionic liquid solvent system to dissolve fermented mushroom dregs to prepare polymers

An ionic liquid solvent and ionic liquid technology, applied in the preparation method of peptides, chemical instruments and methods, organic chemistry, etc., can solve the problems of low realization value and low utilization rate of organic matter in fermentation slag, and achieve the effect of improving utilization rate

Active Publication Date: 2018-01-12
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of low utilization rate of organic matter in fermentation residues and low realization value of traditional treatment methods, the present invention provides a method for preparing high polymers by dissolving fermentation residues in an ionic liquid solvent system. The residues can be prepared after being treated with ionic liquids The natural high polymer is obtained, and the high polymer can be prepared as a degradable material or used as other raw materials, which is beneficial to the further processing and resource utilization of the fungus residue; the method improves the utilization rate of organic matter in the fungus residue, and is a great tool for fermenting bacteria High value utilization of slag provides a new way

Method used

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  • Method of using ionic liquid solvent system to dissolve fermented mushroom dregs to prepare polymers
  • Method of using ionic liquid solvent system to dissolve fermented mushroom dregs to prepare polymers
  • Method of using ionic liquid solvent system to dissolve fermented mushroom dregs to prepare polymers

Examples

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Effect test

Embodiment 1

[0070] A method for preparing high polymers by dissolving fermentation scum in an ionic liquid solvent system, comprising the steps of:

[0071] (1) Take 20 g of wet penicillin fermented bacteria residue, mix it with a single ionic liquid system (1-butyl-3-methylimidazolium chloride salt) at a mass ratio of 1:0.01, and dissolve it at 10°C for 600 minutes to obtain a solution of bacteria residue and undissolved components;

[0072] (2) The anhydrous salt solution and the bacterial residue solution are mixed evenly at a volume ratio of 0.1:1, so that the solute is precipitated to obtain a regenerated polymer; the undissolved components are washed in the order of n-butanol-water-n-butanol to remove residual ions Liquid, after drying at 10°C, a uniform white polymer powder is obtained.

[0073] The extraction rate of the high polymer was 47.9%.

Embodiment 2

[0075] A method for preparing high polymers by dissolving fermentation scum in an ionic liquid solvent system, comprising the steps of:

[0076] (1) Get wet penicillin fermentation slag (such as figure 2 Shown in a) 20g, after washing with 20mL municipal tap water, suction filtration, the bacterial residue that suction filtration obtains (such as figure 2 Shown in b) dried at 80°C to constant weight; the dried bacteria residue was mixed with a single ionic liquid system (1-butyl-3-methylimidazole acetate) at a mass ratio of 1:10, and dissolved at 90°C 720min to get the bacterium residue solution (such as image 3 shown);

[0077] (2) Methanol, water mixed solution and bacterial residue solution are mixed evenly at a volume ratio of 1:1 to precipitate the solute and obtain a regenerated polymer (such as Figure 4 shown).

[0078] The extraction rate of the high polymer was 48.0%.

Embodiment 3

[0080] A method for preparing high polymers by dissolving fermentation scum in an ionic liquid solvent system, comprising the steps of:

[0081] (1) Take 20 g of wet penicillin fermented bacteria residue, wash with 20 mL of anhydrous salt water and then suction filter, and dry the bacteria residue obtained by suction filtration to constant weight at 160 ° C; dry bacteria residue and single ionic liquid system (choline acetate) Mix at a mass ratio of 1:0.5, and dissolve at 90°C for 600 minutes to obtain a solution of fungus residue;

[0082] (2) Methanol and bacterial residue solution are mixed evenly at a volume ratio of 2:1 to precipitate the solute to obtain a regenerated polymer; the undissolved components are washed in the order of n-butanol-water-n-butanol to remove residual ionic liquid , and dried at 30°C to obtain a white polymer powder (such as Figure 6 shown).

[0083] The extraction rate of the polymer was 48.1%.

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Abstract

The invention provides a method of using an ionic liquid solvent system to dissolve fermented mushroom dregs to prepare polymers. The method comprises the following steps: (1) using an ionic liquid solvent system to dissolve fermented mushroom dregs under a heating condition or at a room temperature so as to obtain a solution of dissolved mushroom dregs and an optional undissolved component; and (2) mixing the solution of dissolved mushroom dregs with a regenerating reagent so as to separate polymers from the solution of dissolved mushroom dregs through precipitation and / or solidification to obtain a first polymer; and optionally, washing and drying the undissolved component to obtain a second polymer. The fermented mushroom dregs are processed by an ionic liquid to obtain natural polymers; the polymers can be used to prepare degradable materials or raw materials for other purpose; the mushroom dregs are further processed and converted into valuable resources, a novel method is provided for converting mushroom dregs into valuable resources, and the additional value of mushroom dregs is increased.

Description

technical field [0001] The invention belongs to the technical field of industrial biology, and relates to a method for preparing high polymers by fermenting bacteria residues, in particular to a method for preparing high polymers by dissolving fermentation bacteria residues in an ionic liquid solvent system. Background technique [0002] Fermentation residue is solid waste produced during the fermentation process. The annual output of this solid waste is very large. Only the production process of antibiotics in the pharmaceutical industry produces about 2 million tons of residue per year. Fermented scum contains rich organic matter, mainly including protein, polysaccharide, chitin, lipid, etc. %, the crude fat content is about 0.5%-7%. As a natural and renewable biomass resource, fermentation residue has the value of resource utilization such as preparation of biodegradable materials. [0003] The traditional treatment method of fermented bacteria residue is to use it dire...

Claims

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Application Information

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IPC IPC(8): C07K1/30C07K1/14C08B37/00
CPCY02P20/54
Inventor 刘庆芬杨杰荣
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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