Investigation of the effects of ionic liquids pretreatments and enzymatic hydrolysis of kempas, Koompassia malaccensis

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Abstract

The aim of this study is to investigate ionic liquids (ILs) pretreatment on kempas composition, structure and enzymatic digestibility. Ground kempas (Koompassia malaccensis) was pretreated with 1-butyl-3-methylimidazolium acetate ([Bmim][OAc]), 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) and 1-butyl-3-methylimidazolium trifluoromethansulfonate ([Bmim][OTf]), at 120°C for 6 and 12 h. The cell wall composition and structure of the kempas before and after the ILs pretreatment were observed and characterized using FESEM, ATR FT-IR and XRD. After the pretreatment, enzymatic hydrolysis was carried out to identify the reducing sugars yields using DNS method. Overall, DNS assay showed that the reducing sugars yields of [Bmim][OAc]-pretreated kempas with 6 h and 12 h pretreatment were highest among the ILs regenerated cellulose which are in agreement with the findings of FESEM, ATR FT-IR and XRD. Therefore, shorter-time IL pretreatment is more applicable in this study and kempas is potential be used for biofuel production.

Original languageEnglish
Pages (from-to)1535-1543
Number of pages9
JournalOriental Journal of Chemistry
Volume30
Issue number4
DOIs
Publication statusPublished - 2014

Fingerprint

Ionic Liquids
Enzymatic hydrolysis
hydrolysis
Hydrolysis
Sugars
sugar
acetate
X-ray diffraction
Biofuels
digestibility
Chemical analysis
biofuel
Cellulose
Cell Wall
cellulose
Assays
Cells
chloride
assay
ionic liquid

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry
  • Environmental Chemistry
  • Drug Discovery

Cite this

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title = "Investigation of the effects of ionic liquids pretreatments and enzymatic hydrolysis of kempas, Koompassia malaccensis",
abstract = "The aim of this study is to investigate ionic liquids (ILs) pretreatment on kempas composition, structure and enzymatic digestibility. Ground kempas (Koompassia malaccensis) was pretreated with 1-butyl-3-methylimidazolium acetate ([Bmim][OAc]), 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) and 1-butyl-3-methylimidazolium trifluoromethansulfonate ([Bmim][OTf]), at 120°C for 6 and 12 h. The cell wall composition and structure of the kempas before and after the ILs pretreatment were observed and characterized using FESEM, ATR FT-IR and XRD. After the pretreatment, enzymatic hydrolysis was carried out to identify the reducing sugars yields using DNS method. Overall, DNS assay showed that the reducing sugars yields of [Bmim][OAc]-pretreated kempas with 6 h and 12 h pretreatment were highest among the ILs regenerated cellulose which are in agreement with the findings of FESEM, ATR FT-IR and XRD. Therefore, shorter-time IL pretreatment is more applicable in this study and kempas is potential be used for biofuel production.",
author = "Loh, {Poh Lee} and Hassan, {Nur Hasyareeda} and Usop, {Muhammad Rahimi}",
year = "2014",
doi = "10.13005/ojc/300411",
language = "English",
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TY - JOUR

T1 - Investigation of the effects of ionic liquids pretreatments and enzymatic hydrolysis of kempas, Koompassia malaccensis

AU - Loh, Poh Lee

AU - Hassan, Nur Hasyareeda

AU - Usop, Muhammad Rahimi

PY - 2014

Y1 - 2014

N2 - The aim of this study is to investigate ionic liquids (ILs) pretreatment on kempas composition, structure and enzymatic digestibility. Ground kempas (Koompassia malaccensis) was pretreated with 1-butyl-3-methylimidazolium acetate ([Bmim][OAc]), 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) and 1-butyl-3-methylimidazolium trifluoromethansulfonate ([Bmim][OTf]), at 120°C for 6 and 12 h. The cell wall composition and structure of the kempas before and after the ILs pretreatment were observed and characterized using FESEM, ATR FT-IR and XRD. After the pretreatment, enzymatic hydrolysis was carried out to identify the reducing sugars yields using DNS method. Overall, DNS assay showed that the reducing sugars yields of [Bmim][OAc]-pretreated kempas with 6 h and 12 h pretreatment were highest among the ILs regenerated cellulose which are in agreement with the findings of FESEM, ATR FT-IR and XRD. Therefore, shorter-time IL pretreatment is more applicable in this study and kempas is potential be used for biofuel production.

AB - The aim of this study is to investigate ionic liquids (ILs) pretreatment on kempas composition, structure and enzymatic digestibility. Ground kempas (Koompassia malaccensis) was pretreated with 1-butyl-3-methylimidazolium acetate ([Bmim][OAc]), 1-butyl-3-methylimidazolium chloride ([Bmim]Cl) and 1-butyl-3-methylimidazolium trifluoromethansulfonate ([Bmim][OTf]), at 120°C for 6 and 12 h. The cell wall composition and structure of the kempas before and after the ILs pretreatment were observed and characterized using FESEM, ATR FT-IR and XRD. After the pretreatment, enzymatic hydrolysis was carried out to identify the reducing sugars yields using DNS method. Overall, DNS assay showed that the reducing sugars yields of [Bmim][OAc]-pretreated kempas with 6 h and 12 h pretreatment were highest among the ILs regenerated cellulose which are in agreement with the findings of FESEM, ATR FT-IR and XRD. Therefore, shorter-time IL pretreatment is more applicable in this study and kempas is potential be used for biofuel production.

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