Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/27295
ชื่อเรื่อง: Optimization of deep eutectic solvent pretreatment for bioethanol production from Napier grass
ผู้แต่ง: Panakkal E.J.
Cheenkachorn K.
Chuetor S.
Tantayotai P.
Raina N.
Cheng Y.-S.
Sriariyanun M.
Keywords: Biorefinery
Deep eutectic solvent
Enzymatic hydrolysis
Fermentation
Lignocellulose biomass
Pretreatment
วันที่เผยแพร่: 2022
สำนักพิมพ์: Elsevier Ltd
บทคัดย่อ: The growing demands of fossil fuel consumption led to the depletion of fossil fuels, and other environmental impacts. As a step toward sustainable development, fossil fuels should be replaced by lignocellulosic biofuels to reduce greenhouse gas emissions. Among the lignocellulosic biomass, Napier grass is an important energy crop due to its high growth rate, less water and nutrient requirement for their growth, and high carbohydrate content. This study focused on the improvement of ethanol production from Napier grass by pretreatment with acidic deep eutectic solvent (DES), choline chloride: lactic acid (ChCl/LA) at a mole ratio of 1:4. The parameters for DES pretreatment included biomass loading (1:5 to 1:20, w/w), temperature (80 to 130 ℃), and time (0.5 to 5 h), which were optimized based on maximized sugar release from enzymatic hydrolysis. Under optimized pretreatment conditions (biomass loading of 1:6.5 (w/w), temperature of 80 ℃ for 5 h), 71 % cellulose recovery and 68 % lignin removal were obtained, which led to a glucose yield of 87.09 % from Ctec2 saccharification. The inhibitor analysis revealed that ChCl/LA pretreatment produced only a negligible amount of inhibitor, acetic acid (0.001 % v/v). Furthermore, fermentation studies were also conducted to evaluate the bioethanol production from the biomass, of which 86.6 % of the theoretical ethanol yield was achieved. Overall, this study demonstrated the significance of ChCl/LA pretreatment for ethanol production from Napier grass and the potential of this lignocellulosic ethanol to achieve reach the goals of the green economy. © 2022 Elsevier Ltd
URI: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85142423114&doi=10.1016%2fj.seta.2022.102856&partnerID=40&md5=35a3882aa604fb6844c771c842d3b968
https://ir.swu.ac.th/jspui/handle/123456789/27295
ISSN: 22131388
Appears in Collections:Scopus 2022

Files in This Item:
There are no files associated with this item.


Items in SWU repository are protected by copyright, with all rights reserved, unless otherwise indicated.