Journal
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
Volume 86, Issue 12, Pages 1527-1534Publisher
WILEY
DOI: 10.1002/jctb.2668
Keywords
oil palm empty fruit bunches (OPEFB); response surface methodology (RSM); Changhae Ethanol Multi Explosion (CHEMEX); enzymatic hydrolysis; fermentation
Categories
Funding
- Ministry for Agriculture, Forestry and Fisheries, Republic of Korea [309016-5]
Ask authors/readers for more resources
BACKGROUND: Current ethanol production processes using crops such as corn and sugar cane are well established. However, the utilization of cheaper biomasses such as lignocellulose could make bioethanol more competitive with fossil fuels while avoiding the ethical concerns associated with using potential food resources. RESULTS: Oil palm empty fruit bunches (OPEFB), a lignocellulosic biomass, was pretreated using NaOH to produce bioethanol. The pretreatment and enzymatic hydrolysis conditions were evaluated by response surface methodology (RSM). The optimal conditions were found to be 127.64 degrees C, 22.08 min, and 2.89 mol L-1 for temperature, reaction time, and NaOH concentration, respectively. Regarding enzymatic digestibility, 50 FPU g(-1) cellulose of cellulase was selected as the test concentration, resulting in a total glucose conversion rate (TGCR) of 86.37% using the Changhae Ethanol Multi Explosion (CHEMEX) facility. Fermentation of pretreated OPEFB using Saccharomyces cerevisiae resulted in an ethanol concentration of 48.54 g L-1 at 20% (w/v) pretreated biomass loading, along with simultaneous saccharification and fermentation (SSF) processes. Overall, 410.48 g of ethanol were produced from 3 kg of raw OPEFB in a single run, using the CHEMEX_50 L reactor. CONCLUSION: The results presented here constitute a significant contribution to the production of bioethanol from OPEFB. (C) 2011 Society of Chemical Industry
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available