Improved microbial oil production from oil palm empty fruit bunch by mucor plumbeus

Ahmad, Farah and Zhang, Zhanying and Doherty, William O. S. and O'Hara, Ian M. (2017) Improved microbial oil production from oil palm empty fruit bunch by mucor plumbeus. Fuel, 194. pp. 180-187. ISSN 0016-2361 E-ISSN 1873-7153

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Abstract

This study investigated the effect of cultivation parameters on microbial oil production from hydrolysate of oil palm empty fruit bunch (EFB) using fungus Mucor plumbeus. The parameters selected for evaluation were sugar concentration (30–100 g/L), yeast extract concentration (0–13.3%, g yeast extract/g sugar), pH (5–7) and spore concentration (4.3–6.3, log spore number/mL medium). Response surface methodology was used to optimise the cultivation conditions which were based on the oil concentration and oil yield. Sugar concentration was the most influential parameter that affected oil concentration. However, the cultivation at high sugar concentration (∼100 g/L) also resulted in ethanol accumulation. The optimum condition for oil yield was found at 30 g/L sugar, 0 g/L yeast extract and pH 5.0. Cultivation in 1 L bioreactor under the optimum conditions resulted in ∼1.8-fold increase in oil yield compared to the shake-flask cultivation. Microbial oil produced from EFB hydrolysate has the potential to be used as the feedstock for biodiesel production from non-food feedstock, with cheaper cost of biodiesel production in comparison to glucose-derived microbial oil.

Item Type:	Article (Journal)
Additional Information:	7967/58409
Uncontrolled Keywords:	Biodiesel; Empty fruit bunch; Lignocellulose Lipid Microbial oil;Palm oil
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering T Technology > TP Chemical technology > TP315 Fuel
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr Farah Binti Ahmad
Date Deposited:	20 Sep 2017 08:58
Last Modified:	09 Mar 2018 16:57
URI:	http://irep.iium.edu.my/id/eprint/58409

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