원문정보
초록
영어
Recently, biomass is regarded as one of important resources because that can be converted biofuels which is most interested issue in the field of biotechnology. M any biochemical processes have adapted saccharificated land plants and microorganism such as Clostridium tyrobutyricumto produce biofuels. In the process, most of the microorganism convert the lignocellulose hydrolysate to bioenergy (butyric acid) under strict anaerobic condition. The land plants contains about 26% lignin (phenolics) in general. However, lignin (phenolics) often inhibit the cell growth and consequently the productivity in the process. In this study, we isolated mutanted Clostridium tyrobutyricum that have tolerance to lignin by gamma-ray irradiation. These mutants exhibited the remarkably improved cell growth and the production of butyric acid to the level of the control.