Hydrothermal Pretreatment of Date Palm (Phoenix dactyliferaL.) Leaflets and Rachis to Enhance Enzymatic Digestibility and Bioethanol Potential

Fang, Chuanji;Schmidt, Jens Ejbye;Cybulska, Iwona;Brudecki, Grzegorz P.;Thomsen, Mette Hedegaard;et.al.
(2015) BioMed Research International — Vol. 2015, p. 1-13 (2015)

Files

HydrothermalPretreatmentofDatePalmPhoenixdactyliferaL.pdf
  • Open Access
  • Adobe PDF
  • 2.99 MB
Download

Details

Authors
  • Fang, ChuanjiInstitute Center for Energy (iEnergy), Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
    Author
  • Schmidt, Jens Ejbyeorcid-logoInstitute Center for Energy (iEnergy), Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
    Author
  • Cybulska, IwonaInstitute Center for Energy (iEnergy), Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
    Author
  • Brudecki, Grzegorz P.Institute Center for Energy (iEnergy), Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
    Author
  • Thomsen, Mette HedegaardInstitute Center for Energy (iEnergy), Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
    Author
Show more
Abstract
Date palm residues are one of the most promising lignocellulosic biomass for bioethanol production in the Middle East. In this study, leaflets and rachis were subjected to hydrothermal pretreatment to overcome the recalcitrance of the biomass for enzymatic conversion. Evident morphological, structural, and chemical changes were observed by scanning electron microscopy, X-ray diffraction, and infrared spectroscopy after pretreatment. High glucan (>90% for both leaflets and rachis) and xylan (>75% for leaflets and >79% for rachis) recovery were achieved. Under the optimal condition of hydrothermal pretreatment (210°C/10 min) highly digestible (glucan convertibility, 100% to leaflets, 78% to rachis) and fermentable (ethanol yield, 96% to leaflets, 80% to rachis) solid fractions were obtained. Fermentability test of the liquid fractions proved that no considerable inhibitors to Saccharomyces cerevisiae were produced in hydrothermal pretreatment. Given the high sugar recovery, enzymatic digestibility, and ethanol yield, production of bioethanol by hydrothermal pretreatment could be a promising way of valorization of date palm residues in this region.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Fang, C., Schmidt, J. E., Cybulska, I., Brudecki, G. P., Frankær, C. G., & Thomsen, M. H. (2015). Hydrothermal Pretreatment of Date Palm (Phoenix dactyliferaL.) Leaflets and Rachis to Enhance Enzymatic Digestibility and Bioethanol Potential. BioMed Research International, 2015, 1-13. https://doi.org/10.1155/2015/216454 (Original work published 2015)