Effects of aqueous ammonia treatment on fiber's surface morphology and enzymatic digestibility of empty fruit bunch fiber (EFBF)

Tang Pei Ling, Osman Hassan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This study was conducted to investigate the effects of aqueous ammonia reflux and soaked treatment on the fiber's surface morphology and enzymatic digestibility of empty fruit bunch fiber (EFBF). The surface morphological changes of the fiber after aqueous ammonia treatment was linked to the sugars yield by enzymatic hydrolysis. The effectiveness of 6.25% aqueous ammonia treatment in improving enzymatic digestibility of EFBF was initially studied in reflux system and by soaking. The results showed that soaked treatment was more effective than reflux system. Further study on soaked treatment of EFBF was carried out by increasing the ammonia concentration to 12.50%. Soaking in aqueous ammonia was conducted at 30°C and 50°C for 24 hours. The results of enzymatic hydrolysis showed that sugar yield from EFBF soaked in 12.50% aqueous ammonia at 50°C was the highest. Approximately 242.91±15.50 mg/g EFBF of xylose and 320.49±28.31 mg/g EFBF of glucose were produced by the action of enzyme Cellic Ctec 2. Results of scanning electron microscopic showed that aqueous ammonia treatment by soaking had caused a more severe structural distortion on the fiber's surface and higher removal of silica bodies that embedded on the fiber than those in reflux system. The changes on the fiber's surface morphology were believed is the contributing factor that improved the enzymatic digestibility of EFBF after aqueous ammonia treatment.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages877-881
Number of pages5
Volume1571
DOIs
Publication statusPublished - 2013
Event2013 UKM Faculty of Science and Technology Post-Graduate Colloquium - Selangor
Duration: 3 Jul 20134 Jul 2013

Other

Other2013 UKM Faculty of Science and Technology Post-Graduate Colloquium
CitySelangor
Period3/7/134/7/13

Fingerprint

fruits
ammonia
fibers
soaking
sugars
hydrolysis
xylose
glucose
enzymes

Keywords

  • Ammonia treatment
  • Empty fruit bunch fiber (EFBF)
  • Enzymatic hydrolysis
  • Scanning Electron Microscopy
  • Sugar yield

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Effects of aqueous ammonia treatment on fiber's surface morphology and enzymatic digestibility of empty fruit bunch fiber (EFBF). / Ling, Tang Pei; Hassan, Osman.

AIP Conference Proceedings. Vol. 1571 2013. p. 877-881.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ling, TP & Hassan, O 2013, Effects of aqueous ammonia treatment on fiber's surface morphology and enzymatic digestibility of empty fruit bunch fiber (EFBF). in AIP Conference Proceedings. vol. 1571, pp. 877-881, 2013 UKM Faculty of Science and Technology Post-Graduate Colloquium, Selangor, 3/7/13. https://doi.org/10.1063/1.4858765
Ling, Tang Pei ; Hassan, Osman. / Effects of aqueous ammonia treatment on fiber's surface morphology and enzymatic digestibility of empty fruit bunch fiber (EFBF). AIP Conference Proceedings. Vol. 1571 2013. pp. 877-881
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