| 초록 |
As a result of increasing oil prices, biofuel production such as ethanol/butanol fermentation using biomass has been paid more attention and has been studied widely. Among biomass, lignocellulosic materials containing cellulose, hemicellulose and lignin are most abundant and renewable resources with great potential as fermentation substrates for biofuel production. Upon hydrolysis, cellulose and hemicellulose present in lignocellulosic materials liberate fermentable sugars such as glucose, xylose and mannose. Meanwhile, hydrolysis of lignocellulosic materials also produce furan, weak acids, and phenolic compounds that inhibit fermentation of hydrolyzates of lignocellulosic materials for biofuel production.However, preparation of hydrolyzates from lignocellulosic material still remains a challenge. In this study, the modified supercritical water treatment (SCW) method is employed to hydrolyze a lignocellulosic material, wood powder of Populus alba x glandulosa at 375 oC, 217.6 atm, for 1 min. The hydrolyzate was filtered, concentrated andadded withP2 solution for further ABE fermentation using a solventogenic clostiridum, Clostridium beijerinckii NCIMB 8052. |
