Microwave-assisted deep eutectic solvents/dimethyl sulfoxide system for efficient valorization of sugar bagasse waste into platform chemicals: A biorefinery approach for circular bioeconomy

  • Bioresour Technol. 2022 Nov:363:127969. doi: 10.1016/j.biortech.2022.127969.
Kassian T T Amesho  1 ,  Pei-Cheng Cheng  1 ,  Ken-Lin Chang  1 ,  Yen-Ping Peng  1 ,  Syu-Ruei Jhang  2 ,  Yuan-Chung Lin  3
Affiliations
  • 1. Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
  • 2. Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Research Center for Environmental Changes, Academia Sinica, 23 Taipei 11529, Taiwan.
  • 3. Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Center for Emerging Contaminants Research, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; Department of Public Health, College of Health Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Doctoral Degree Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan. Electronic address: [email protected].
PMID: 36122844 DOI: 10.1016/j.biortech.2022.127969
Abstract

The exploitation of lignocellulosic biomass (LB) such as sugar bagasse waste in biorefineries is the most cost-effective and favourable sustainable approach to producing essential platform chemicals, Materials, and energy environmentally benignly. Herein, a microwave-mediated deep eutectic Solvents (DESs)/dimethyl sulfoxide (DMSO) system for efficiently processing LB waste into platform chemicals was proposed thereof. Under optimized appropriate diverse parameters such as solvent varieties, catalyst dosage, DMSO addition, reaction time and temperature, the proposed catalytic system (i.e., microwave mediated DESs/DMSO system) has demonstrated significant yields of 5-hydroxymethylfurfural (5-HMF), furfural (FF) and levulinic acid (LevA) of 31.29 %, 28.38 % and 35.65 %, respectively. These favourable results were obtained at the reaction temperature of 140 °C for 40 min. The anticipated catalytic system's activation energy (Ea) was found to be 29.11 kJ/mol. Hence, a practical, inexpensive and sustainable process with the potential of high-value platform chemicals, explicitly for a sustainable strategy in a circular bioeconomy was proposed.

Keywords
Biofinery concept; Biofuels; Biomass; Deep eutectic solvents (DESs); Dimethyl sulfoxide (DMSO); Microwave irradiation; Platform chemicals.