Evaluation of oil production from oil palm empty fruit bunch by oleaginous micro-organisms

Ahmad, Farah B., Zhang, Zhanying, Doherty, William O.S., & O'Hara, Ian M. (2016) Evaluation of oil production from oil palm empty fruit bunch by oleaginous micro-organisms. Biofuels, Bioproducts and Biorefining, 10(4), pp. 378-392.

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Abstract

Oil palm empty fruit bunch (EFB) is a readily available, lignocellulosic biomass that has potential to be utilized as a carbon substrate for microbial oil production. In order to evaluate the production of microbial oil from EFB, a technical study was performed through the cultivation of oleaginous micro-organisms (Rhodotorula mucilaginosa, Aspergillus oryzae, and Mucor plumbeus) on EFB hydrolyzates. EFB hydrolyzates were prepared through dilute acid pre-treatment of the biomass, where the liquid fraction of pre-treatment was detoxified and used as an EFB liquid hydrolyzate (EFBLH). The solid residue was enzymatically hydrolyzed prior to be used as an EFB enzymatic hydrolyzate (EFBEH). The highest oil concentrations were obtained from M. plumbeus (1.9 g/L of oil on EFBLH and 4.7 g/L of oil on EFBEH). In order to evaluate the feasibility of large-scale microbial oil production, a techno-economic study was performed based on the oil yields of M. plumbeus per hectare of plantation, followed by the estimation of the feedstock cost for oil production. Other oil palm biomasses (frond and trunk) were also included in this study, as it could potentially improve the economics of large-scale microbial oil production. Microbial oil from oil palm biomasses was estimated to potentially increase oil production in the palm oil industry up to 25%, at a cheaper feedstock cost. The outcome of this study demonstrates the potential integration of microbial oil production from oil palm biomasses with existing palm oil industry (biodiesel, food and oleochemicals production), that could potentially enhance sustainability and profitability of microbial oil production.

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ID Code: 93768
Item Type: Journal Article
Refereed: Yes
Keywords: biodiesel, empty fruit bunch, lignocellulose, lipid, microbial oil, oil palm, oleaginous microorganism, techno-economic
DOI: 10.1002/bbb.1645
ISSN: 1932-1031
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CHEMICAL ENGINEERING (090400) > Chemical Engineering not elsewhere classified (090499)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Research Centres > Centre for Tropical Crops and Biocommodities
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Funding:
  • MINISTRY OF HIGHER E/KPT(BS) 871125025804
Facilities: Central Analytical Research Facility, Banyo Pilot Plant
Copyright Owner: Copyright 2016 Society of Chemical Industry and John Wiley & Sons Ltd
Copyright Statement: This is the peer reviewed version of the following article: Ahmad, F. B., Zhang, Z., Doherty, W. O. and O'Hara, I. M. (2016), Evaluation of oil production from oil palm empty fruit bunch by oleaginous micro-organisms. Biofuels, Bioprod. Bioref., 10: 378–392, which has been published in final form at https://doi.org/10.1002/bbb.1645. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Deposited On: 13 Mar 2016 23:39
Last Modified: 02 Nov 2016 18:25

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