Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4997111 | Bioresource Technology | 2017 | 33 Pages |
Abstract
Nowadays, coffee residue (CR) after roasting is recognized as one of the most useful resources in the world for producing the biofuel and bio-materials. In this study, we evaluated the potential of bio-sugar and bioethanol production from acid-chlorite treated CR. Notably, CR treated three times with acid-chlorite after organic solvent extraction (OSE-3), showed the high monosaccharide content, and the efficient sugar conversion yield compared to the other pretreatment conditions. The OSE-3 (6% substrate loading, w/v) can produce bio-sugar (0.568Â g/g OSE-3). Also, simultaneous saccharification and fermentation (SSF) produced ethanol (0.266Â g/g OSE-3), and showed an ethanol conversion yield of 73.8% after a 72-h reaction period. These results suggest that acid-chlorite pretreatment can improve the bio-sugar and bioethanol production of CR by removing the phenolic and brown compounds.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Ho Myeong Kim, Yong-Soo Choi, Dae-Seok Lee, Yong-Hwan Kim, Hyeun-Jong Bae,