An application of low concentration alkaline hydrogen peroxide at non-severe pretreatment conditions together with deep eutectic solvent to improve delignification of oil palm fronds

Mun Chun Ho, Ta Yeong Wu, Samuel Wei Qiang Chee, Chia Yee Ngang, Irene Mei Leng Chew, Wen Hui Teoh, Jamaliah Md Jahim, Abdul Wahab Mohammad

Research output: Contribution to journalArticle

Abstract

Cost-effective pretreatments are essential to overcome the recalcitrant properties of lignocellulosic biomass in order to reutilize cellulosic components within the biomass for value-added products. In this study, a sequential pretreatment of low concentration (< 1.00 vol%) alkaline hydrogen peroxide (AHP) at ambient temperature (~ 25 °C) and pressure (1 atm.) with Type III deep eutectic solvent (DES) was used to fractionate oil palm fronds (OPF). A combination of AHP (0.25 vol%, 90 min) and DES (120 °C, 4 h) at the later stage resulted in a pretreated OPF with a delignification of 18.99%, remarkably improved DES-alone delignification extent by 1.6 folds. The characterizations of pretreated OPF confirmed that mild conditions AHP + DES pretreatment could synergically improve the delignification efficiency. Thus, the use of this sequential pretreatment enabled the lignin extraction and effectively disrupted the recalcitrant structure of OPF, yielding a potential feedstock for a biorefinery process at the later stage.

Original languageEnglish
JournalCellulose
DOIs
Publication statusAccepted/In press - 1 Jan 2019

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Delignification
Palm oil
Hydrogen peroxide
Eutectics
Hydrogen Peroxide
Biomass
Lignin
Feedstocks
Costs
Temperature

Keywords

  • Biomass valorization
  • Biorefinery
  • Green solvent
  • Lignocellulosic biomass
  • Waste management

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

An application of low concentration alkaline hydrogen peroxide at non-severe pretreatment conditions together with deep eutectic solvent to improve delignification of oil palm fronds. / Ho, Mun Chun; Wu, Ta Yeong; Chee, Samuel Wei Qiang; Ngang, Chia Yee; Chew, Irene Mei Leng; Teoh, Wen Hui; Md Jahim, Jamaliah; Mohammad, Abdul Wahab.

In: Cellulose, 01.01.2019.

Research output: Contribution to journalArticle

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AU - Chew, Irene Mei Leng

AU - Teoh, Wen Hui

AU - Md Jahim, Jamaliah

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