Wijaya, Candra and Sangadji, Ningsi Lick and Muharja, Maktum and Widjaja, Tri and Riadi, Lieke and Widjaja, Arief (2025) An integrated green fractionation of coconut husk: Hydrothermal and deep eutectic solvent pretreatment for enhanced sugar and lignin production. Bioresource Technology Reports, 29. 102078/1-15.
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Abstract
Coconut husk was explored for sugar and lignin production using an integrated approach combining hydro- thermal treatment (HT) and deep eutectic solvent (DES) pretreatments, followed by enzymatic saccharification, to enhance lignocellulose fraction recovery. Optimized HT conditions yielded 4.802 g/L of total reducing sugars, including 0.223 g/L glucose and 0.998 g/L xylose, with minimal degradation products. Subsequent DES pre- treatment with choline chloride and lactic acid effectively removed lignin, recovering high-purity lignin with a native-like structure. The combined pretreatment resulted in a cellulose-rich solid, enhancing saccharification yield by 3.24-fold compared to single pretreatments. This improvement stemmed from the extensive disruption and removal of non-cellulose components, confirmed by solid characterizations. The integrated process demonstrated a synergistic effect, achieving 31.3 % total sugar recovery and 48 % lignin recovery, highlighting the potential of coconut husk as a promising biorefinery feedstock.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Coconut husk; Hydrothermal pretreatment; Deep eutectic solvents; Enzymatic saccharification; Lignin recovery; Sugars; Lignin |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering > Department of Chemical Engineering |
| Depositing User: | Ester Sri W. 196039 |
| Date Deposited: | 19 Mar 2025 03:13 |
| Last Modified: | 19 Mar 2025 03:13 |
| URI: | http://repository.ubaya.ac.id/id/eprint/48241 |
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