Interaction effects of pH and inhibitors in oil palm frond (OPF) hemicelullosic hydrolysate on xylitol production: A statistical study

Shareena Fairuz Abdul Manaf, Abdullah Amru Indera Luthfi, Jamaliah Md Jahim, Shuhaida Harun

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The degradation of sugars into less desirable compounds such as acetic acid and furfural are common during acid hydrolysis. The aim of this study was to evaluate the variables of pH, concentration of acetic acid and furfural on the production of xylitol utilising Kluyveromyces marxianus ATCC 36907 by employing full factorial design. The ANOVA results showed that at the 95% confidence level all three factors and interactions of initial pH of fermentation with acetic acid and furfural concentration were significantly affect the xylitol yield. The results of this experiment were fitted with the second order polynomial regression to relate the yield of xylitol and the independent variables. The fitted model showed a good agreement between the observed and predicted value of xylitol yield by Kluyveromyces marxianus ATCC 36907. The xylitol yield for bioconversion of detoxified dilute acid OPF hydrolysate was 0.29 g/g of xylose with the presence of 4 g/L of acetic acid and 0.5 g/L furfural. The fermentation process was carried out at initial pH 6.5. Results of these experiments indicated that the regression model equation was a valid method to evaluate the relationship of response and independent variables and to predict the xylitol yield based on the composition of major inhibitors present in the dilute acid oil palm fronds (OPF) hydrolysate.

Original languageEnglish
Pages (from-to)241-255
Number of pages15
JournalJournal of Physical Science
Volume28
DOIs
Publication statusPublished - 2017

Fingerprint

Xylitol
Furfural
Palm oil
Acetic acid
inhibitors
Furaldehyde
acetic acid
oils
Acetic Acid
fermentation
Fermentation
Acids
acids
interactions
regression analysis
bioconversion
Bioconversion
Xylose
xylose
factorial design

Keywords

  • Acetic acid
  • Full factorial design
  • Furfural
  • PH
  • Xylitol

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Interaction effects of pH and inhibitors in oil palm frond (OPF) hemicelullosic hydrolysate on xylitol production : A statistical study. / Manaf, Shareena Fairuz Abdul; Luthfi, Abdullah Amru Indera; Md Jahim, Jamaliah; Harun, Shuhaida.

In: Journal of Physical Science, Vol. 28, 2017, p. 241-255.

Research output: Contribution to journalArticle

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