Jung, Y.H.; Kim, I.J.; Kim, J.J.; Oh, K.K.; Han, J.I.; Choi, I.G.; Kim, K.H.
초록
Oil palm trunks are a possible lignocellulosic source for ethanol production. Low enzymatic digestibility of this type of material (11.9% of the theoretical glucose yield) makes pretreatment necessary. An enzymatic digestibility of 95.4% with insoluble solids recovery of 49.8% was achieved after soaking shredded oil palm trunks in ammonia under optimum conditions (80<SUP>o</SUP>C, 1:12 solid-to-liquid ratio, 8h and 7% (w/w) ammonia solution). Treatment with 60 FPU of commercial cellulase (Accellerase 1000) per gram of glucan and fermentation with Saccharomyces cerevisiae D<SUB>5</SUB>A resulted in an ethanol concentration of 13.3g/L and an ethanol yield of 78.3% (based on the theoretical maximum) after 96h. These results indicate that oil palm trunks are a biomass feedstock that can be used for bioethanol production.