Deep eutectic solvent and inorganic salt pretreatment of lignocellulosic biomass for improving xylose recovery

Yu Loong Loow; Ta Yeong Wu; Ge Hoa Yang; Lin Yang Ang; Eng Kein New; Lee Fong Siow; Jamaliah Md. Jahim; Abdul Wahab Mohammad; Wen Hui Teoh

doi:10.1016/j.biortech.2017.07.165

Deep eutectic solvent and inorganic salt pretreatment of lignocellulosic biomass for improving xylose recovery

Yu Loong Loow
, Ta Yeong Wu
, Ge Hoa Yang
, Lin Yang Ang
, Eng Kein New
, Lee Fong Siow
, Jamaliah Md. Jahim
, Abdul Wahab Mohammad
, Wen Hui Teoh

Research output: Contribution to journal › Article › Research › peer-review

213 Citations (Scopus)

Abstract

Deep eutectic solvents (DESs) have received considerable attention in recent years due to their low cost, low toxicity, and biodegradable properties. In this study, a sequential pretreatment comprising of a DES (choline chloride:urea in a ratio of 1:2) and divalent inorganic salt (CuCl₂) was evaluated, with the aim of recovering xylose from oil palm fronds (OPF). At a solid-to-liquid ratio of 1:10 (w/v), DES alone was ineffective in promoting xylose extraction from OPF. However, a combination of DES (120 °C, 4 h) and 0.4 mol/L of CuCl₂ (120 °C, 30 min) resulted in a pretreatment hydrolysate containing 14.76 g/L of xylose, remarkably yielding 25% more xylose than the CuCl₂-only pretreatment (11.87 g/L). Characterization studies such as FE-SEM, BET, XRD, and FTIR confirmed the delignification of OPF when DES was implemented. Thus, the use of this integrated pretreatment system enabled xylose recoveries which were comparable with other traditional pretreatments.

Original language	English
Pages (from-to)	818-825
Number of pages	8
Journal	Bioresource Technology
Volume	249
DOIs	https://doi.org/10.1016/j.biortech.2017.07.165
Publication status	Published - Feb 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Biomass valorization
Biorefinery
Green solvent
Hemicellulose
Lignin
Oil palm fronds

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10.1016/j.biortech.2017.07.165

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@article{c9efa247a623462292baa77f21d02deb,

title = "Deep eutectic solvent and inorganic salt pretreatment of lignocellulosic biomass for improving xylose recovery",

abstract = "Deep eutectic solvents (DESs) have received considerable attention in recent years due to their low cost, low toxicity, and biodegradable properties. In this study, a sequential pretreatment comprising of a DES (choline chloride:urea in a ratio of 1:2) and divalent inorganic salt (CuCl2) was evaluated, with the aim of recovering xylose from oil palm fronds (OPF). At a solid-to-liquid ratio of 1:10 (w/v), DES alone was ineffective in promoting xylose extraction from OPF. However, a combination of DES (120 °C, 4 h) and 0.4 mol/L of CuCl2 (120 °C, 30 min) resulted in a pretreatment hydrolysate containing 14.76 g/L of xylose, remarkably yielding 25\% more xylose than the CuCl2-only pretreatment (11.87 g/L). Characterization studies such as FE-SEM, BET, XRD, and FTIR confirmed the delignification of OPF when DES was implemented. Thus, the use of this integrated pretreatment system enabled xylose recoveries which were comparable with other traditional pretreatments.",

keywords = "Biomass valorization, Biorefinery, Green solvent, Hemicellulose, Lignin, Oil palm fronds",

author = "Loow, \{Yu Loong\} and Wu, \{Ta Yeong\} and Yang, \{Ge Hoa\} and Ang, \{Lin Yang\} and New, \{Eng Kein\} and Siow, \{Lee Fong\} and \{Md. Jahim\}, Jamaliah and Mohammad, \{Abdul Wahab\} and Teoh, \{Wen Hui\}",

note = "Funding Information: The funding of this research is supported by Department of Higher Education, Ministry of Education Malaysia under Long Term Research Grant Scheme ( LRGS/2013/UKM-UKM/PT/01 ) and Fundamental Research Grant Scheme (FRGS/1/2016/WAB01/MUSM/02/2). In addition, the authors would like to thank Monash University Malaysia for providing Y.-L. Loow with a Master scholarship. Also, the authors would like to thank School of Engineering for providing UROP to G.H. Yang and E.K. New an early opportunity to undergo a research experience at Monash University Malaysia. Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",

year = "2018",

month = feb,

doi = "10.1016/j.biortech.2017.07.165",

language = "English",

volume = "249",

pages = "818--825",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier",

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TY - JOUR

T1 - Deep eutectic solvent and inorganic salt pretreatment of lignocellulosic biomass for improving xylose recovery

AU - Loow, Yu Loong

AU - Wu, Ta Yeong

AU - Yang, Ge Hoa

AU - Ang, Lin Yang

AU - New, Eng Kein

AU - Siow, Lee Fong

AU - Md. Jahim, Jamaliah

AU - Mohammad, Abdul Wahab

AU - Teoh, Wen Hui

N1 - Funding Information: The funding of this research is supported by Department of Higher Education, Ministry of Education Malaysia under Long Term Research Grant Scheme ( LRGS/2013/UKM-UKM/PT/01 ) and Fundamental Research Grant Scheme (FRGS/1/2016/WAB01/MUSM/02/2). In addition, the authors would like to thank Monash University Malaysia for providing Y.-L. Loow with a Master scholarship. Also, the authors would like to thank School of Engineering for providing UROP to G.H. Yang and E.K. New an early opportunity to undergo a research experience at Monash University Malaysia. Publisher Copyright: © 2017 Elsevier Ltd Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2018/2

Y1 - 2018/2

N2 - Deep eutectic solvents (DESs) have received considerable attention in recent years due to their low cost, low toxicity, and biodegradable properties. In this study, a sequential pretreatment comprising of a DES (choline chloride:urea in a ratio of 1:2) and divalent inorganic salt (CuCl2) was evaluated, with the aim of recovering xylose from oil palm fronds (OPF). At a solid-to-liquid ratio of 1:10 (w/v), DES alone was ineffective in promoting xylose extraction from OPF. However, a combination of DES (120 °C, 4 h) and 0.4 mol/L of CuCl2 (120 °C, 30 min) resulted in a pretreatment hydrolysate containing 14.76 g/L of xylose, remarkably yielding 25% more xylose than the CuCl2-only pretreatment (11.87 g/L). Characterization studies such as FE-SEM, BET, XRD, and FTIR confirmed the delignification of OPF when DES was implemented. Thus, the use of this integrated pretreatment system enabled xylose recoveries which were comparable with other traditional pretreatments.

AB - Deep eutectic solvents (DESs) have received considerable attention in recent years due to their low cost, low toxicity, and biodegradable properties. In this study, a sequential pretreatment comprising of a DES (choline chloride:urea in a ratio of 1:2) and divalent inorganic salt (CuCl2) was evaluated, with the aim of recovering xylose from oil palm fronds (OPF). At a solid-to-liquid ratio of 1:10 (w/v), DES alone was ineffective in promoting xylose extraction from OPF. However, a combination of DES (120 °C, 4 h) and 0.4 mol/L of CuCl2 (120 °C, 30 min) resulted in a pretreatment hydrolysate containing 14.76 g/L of xylose, remarkably yielding 25% more xylose than the CuCl2-only pretreatment (11.87 g/L). Characterization studies such as FE-SEM, BET, XRD, and FTIR confirmed the delignification of OPF when DES was implemented. Thus, the use of this integrated pretreatment system enabled xylose recoveries which were comparable with other traditional pretreatments.

KW - Biomass valorization

KW - Biorefinery

KW - Green solvent

KW - Hemicellulose

KW - Lignin

KW - Oil palm fronds

UR - https://www.scopus.com/pages/publications/85032789769

U2 - 10.1016/j.biortech.2017.07.165

DO - 10.1016/j.biortech.2017.07.165

M3 - Article

C2 - 29136937

AN - SCOPUS:85032789769

SN - 0960-8524

VL - 249

SP - 818

EP - 825

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Deep eutectic solvent and inorganic salt pretreatment of lignocellulosic biomass for improving xylose recovery

Abstract

UN SDGs

Keywords

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