Effects of Dilute Acid Pretreatment on Chemical and Physical Properties of Kenaf Biomass

M. N. Nur Aimi, H. Anuar, S. M. Nurhafizah, Sarani Zakaria

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In the current research, kenaf represents an agricultural biomass that possesses enormous potential for industrial applications. Because of its complex structure, which is composed of cellulose, hemicellulose, and lignin, pretreatment process was conducted. Here, dilute acid pretreatment process was conducted, statistically using the response surface method, which included three parameters: mass of biomass (g), temperature (°C), and time (min). About 2 g of kenaf biomass was treated with 2% dilute sulphuric acid, and it was found to have higher glucose conversion (25.3%) when the process was conducted for 60 min at the temperature of 180°C. The main aim of the current research is to investigate the chemical and physical changes of kenaf biomass before and after the pretreatment. The changes could be clearly seen in the cellulose, hemicellulose, and lignin composition before and after the pretreatment, which were evaluated via TAPPI standard test methods. Morphological observation under scanning electron microscope confirmed the changes that took place on the kenaf biomass from complex to simple surface structure. Fourier transform infrared analysis confirmed the presence of cellulose, hemicellulose, and lignin contents of the kenaf biomass before and after pretreatment. Crystallinity of the treated kenaf biomass also increased from 46.6% to 70.0%, as evidenced from X-ray diffractometer analysis.

Original languageEnglish
Pages (from-to)256-264
Number of pages9
JournalJournal of Natural Fibers
Volume12
Issue number3
DOIs
Publication statusPublished - 4 May 2015

Fingerprint

Chemical properties
Biomass
Physical properties
Acids
Lignin
Cellulose
Diffractometers
Surface structure
Industrial applications
Glucose
Fourier transforms
Electron microscopes
Infrared radiation
Scanning
X rays
Temperature
Chemical analysis
hemicellulose

Keywords

  • chemical composition
  • crystallinity
  • kenaf biomass
  • morphology
  • physical features
  • pretreatment

ASJC Scopus subject areas

  • Materials Science (miscellaneous)

Cite this

Effects of Dilute Acid Pretreatment on Chemical and Physical Properties of Kenaf Biomass. / Nur Aimi, M. N.; Anuar, H.; Nurhafizah, S. M.; Zakaria, Sarani.

In: Journal of Natural Fibers, Vol. 12, No. 3, 04.05.2015, p. 256-264.

Research output: Contribution to journalArticle

Nur Aimi, M. N. ; Anuar, H. ; Nurhafizah, S. M. ; Zakaria, Sarani. / Effects of Dilute Acid Pretreatment on Chemical and Physical Properties of Kenaf Biomass. In: Journal of Natural Fibers. 2015 ; Vol. 12, No. 3. pp. 256-264.
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