Microorganism screening for ethanol production using gasification gas from agricultural residue

Ethanol is one of the most important alternative bio-fuels, which provides a net energy gain, has environmental benefits and is economically competitive. Ethanol production from syngas anaerobic fermentation appears to be a potential and promising technology compared to the existing chemical conversion techniques. Currently, syngas fermentation is being developed as one option towards the production of bio-ethanol from biomass. The gasification of the agricultural residue biomass is a mature and industrialized technology up to now. According to the fact that bio-ethanol production from syngas in anaerobic conditions still can not be industrialized, special emphasis has been given to obtain the efficient microorganism fermenting that transfers syngas to ethanol. In order to obtain strains for high efficient ethanol production by syngas generated from agricultural residue, ethanol fermentations taking syngas as the sole carbon source and energy source were carried out. The results showed that all of the culture