Putranto, Angky Wahyu and Dutta, Saurabh and Priananda, Ciptian Weried and Illias, Hazlee Azil and Syafiqoh, Qothrunnada and Masruchin, Nanang and Wibisono, Yusuf and Suhartini, Sri and Chua, Adeline Seak May and Ngoh, Gek Cheng (2025) Enhancement of cellulose nanocrystal yield from oil palm empty fruit bunches: A comparative study of binary and ternary deep eutectic solvents with pulsed electric field pretreatment. Biomass & Bioenergy, 196. p. 107672. ISSN 0961-9534, DOI https://doi.org/10.1016/j.biombioe.2025.107672.
Full text not available from this repository.Abstract
Effective pretreatment of lignocellulosic biomass is essential in ensuring sustainable cellulose nanocrystal (CNC) production. Binary and ternary deep eutectic solvent (DES)-based pretreatment coupled with assistive techniques has yielded high cellulose extract and lignin removal efficiency. In addition, pulsed electric field (PEF)-assisted pretreatment showed good performance to accelerate the lignocellulose fractionation process under mild conditions. However, the production of CNC from oil palm empty fruit bunches (OPEFBs) by utilizing binary and ternary DES incorporated with a PEF requires in-depth exploration to provide insights into its electroporation effect based on different DES properties. This study investigates CNC production from OPEFB pretreated with binary and ternary DES integrated with PEF. The extracted cellulose (EC) and CNC were evaluated for their characteristics and energy consumption. Simulations of binary and ternary DES properties assessed current and voltage distribution in the PEF chamber. Under 6 kV/cm for 3 min, the pretreatment achieved high solid recovery, alpha-cellulose, lignin removal, and EC crystallinity. CNC has yield ranged from 78.44 to 83.62 %, with dimensions of 120.5-126.9 nm of length and 10.2-10.4 nm of width, and a crystallinity index of 81.3-83.7 %. The DES-PEF method demonstrated faster processing (3 min) and lower energy consumption (0.4-2.1 kWh/kg) compared to DES-conventional heating, with total of CNC production energy at 36-38 kWh/kg. Overall, the binary DES demonstrates better OPEFB pretreatment efficiency than the ternary DES when incorporated with the PEF-assistive technique. This novel and innovative method devises a time- and energy-saving biomass pretreatment for sustainable CNC production.
| Item Type: | Article |
|---|---|
| Funders: | Fundamental Research Grant Scheme (FRGS) by the Ministry of Education Malaysia (FRGS/1/2019/TK10/UM/02/6), National Research and Innovation Agency-Indonesia Endowment for Education under the Research and Innovation for Onward Indonesia (RIIM) scheme Batch 3 (25/IV/KS/05/2023) |
| Uncontrolled Keywords: | Biomass pretreatment; Cellulose nanocrystal; Deep eutectic solvent; Energy requirement; Lignin removal; Pulsed electric field |
| Subjects: | S Agriculture > S Agriculture (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering > Department of Chemical Engineering Faculty of Engineering > Department of Electrical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 05 May 2025 07:36 |
| Last Modified: | 05 May 2025 07:36 |
| URI: | http://eprints.um.edu.my/id/eprint/47858 |
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