Korea Institute of Science and Technology

Korea University Research and Business Foundation

Sk Innovation Co., Ltd.

Young Soon Um

Kyung Min Lee

Kyoung Heon Kim

Seong Ho Lee

Byoung Sung Ahn

Sang Deuk Lee

Dong Jin Suh

Hong Gon Kim

Chang Soo Kim

In Ho Cho

Sun Mi Lee

Young Seek Yoon

Sam Ryong Park

Jung Yeon Kim

Sin Young Kang

Young Woong Suh

Cher Hee Park

Joongsuk Kim

Hyung Woong Ahn

Jong Hee Song

Byoung In Sang

The present invention relates to a metabolome sampling and analysis method for analyzing metabolome during synthetic gas fermentation of a synthetic gas fermentation microorganisms, the method establishing an optimal condition for metabolome sampling and enabling a glucose culture and a synthetic gas culture of the synthetic gas fermentation microorganisms to be distinguished by using a selected metabolomic biomarker.

Metabolome sampling and analysis method for analyzing metabolome during synthetic gas fermentation of synthetic gas fermentation microorganisms

The apparatus includes: a pretreatment tank where biomass and a first acid solution are stirred to extract sugar components from the biomass; a hydrolysis tank where water is added to the pretreated mixture transferred from the pretreatment tank such that the concentration of the acid is reduced and the sugar components are hydrolyzed to produce an acid hydrolyzate; a first sugar-acid separation tank where the acid hydrolyzate is separated into a second acid solution and a first hydrolyzate; a second sugar-acid separation tank where the first hydrolyzate is separated into a third acid solution and a second hydrolyzate; a fermentation tank where the second hydrolyzate is fermented to produce bioenergy; and an acid solution concentration tank where a mixture of the second acid solution transferred from the first sugar-acid separation tank and the third acid solution transferred from the second sugar-acid separation tank is concentrated to a higher level for reuse.

Apparatus and method for bioenergy production using regenerated acid solution

Disclosed is a method of converting butyric acid contained in a fermentation broth into biofuel. This chemical conversion method includes separating biohydrogen from gases generated in the course of production of butyric acid through fermentation of carbohydrate, extracting butyric acid from the broth using an insoluble solvent, esterifying butyric acid thus producing butylbutyrate, and hydrogenolyzing all or part of butylbutyrate, thus obtaining butanol. Thereby, biobutanol can be efficiently and economically produced, and butylbutyrate, which has oxidation stability superior to that of conventional biodiesel (fatty acid methyl ester) and is thus regarded as novel biofuel, can be produced together.

Method of extracting butyric acid from a fermented liquid and chemically converting butyric acid into biofuel

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Seoul, South Korea

Young Soon Um