Method for producing acetone-ethanol-butanol (ABE) by fermentation with straw hydrolysate as raw material

A technology of hydrolyzate and straw, applied in the field of biomass energy preparation, can solve the problems of lack of ability to synthesize glutathione, few research reports on anaerobic bacteria, etc., achieve good practical value and promotion and application significance, and improve fermentation yield The effect of rate and dosage optimization
CN110714033AActive Publication Date: 2020-01-21HENAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
HENAN UNIVERSITY
Publication Date
2020-01-21

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Abstract

The invention belongs to the technical field of biomass energy preparation, and particularly relates to a method for producing acetone-ethanol-butanol (ABE) by fermentation with a straw hydrolysate asa raw material. The method specifically includes the steps of straw pretreatment, biological enzymolysis, preparation of an ABE fermentation culture solution, a fermentation hydrolysate and the like.According to the method, when butanol is fermented with a straw acid hydrolysate as a raw material and in combination with the fermentation treatment of specific microbial strains, the expression level of related key enzymes in a solvent metabolism pathway can be significantly affected by adding glutathione, and thus chemical compositions of cell membranes of the strains are changed, and the butanol production capacity is improved. According to the method, straws are pretreated into hydrolysate and then directly fermented to produce ABE, the complex detoxification process is avoided, so thatthe production cost is reduced, and the industrialization of ABE fermentation is promoted; and furthermore, through the optimization of the fermentation process, especially the addition and utilization of the glutathione in the fermentation process, the fermentation yield of the ABE is further improved, and the ABE industrial production is promoted.
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Description

technical field

[0001] The application belongs to the technical field of biomass energy preparation, and specifically relates to a method for producing ABE by fermenting straw hydrolyzate as a raw material. Background technique

[0002] In the development and utilization of biomass energy technology, acetone-ethanol-butanol (ABE) fermentation is a relatively mature fermentation technology and the second largest fermentation process in the world after alcohol fermentation. With the rapid development of the global economy, energy issues have become an important constraint on economic development, and it is imminent to find potential energy sources that can replace fossil fuels.

[0003] Bio-fermentation to produce fuel is one of the most effective methods, and bio-butanol is one of the most promising researches on bio-fuel. Biobutanol is not only an important organic chemical raw material, but also a new type of biofuel with great potential. However, the use of food crops to...

Claims

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