The production of microbial biodiesel from cellulose-derived fungal lipid via consolidated bioprocessing

Hasni, Mohd Haffizi and Ahmad, Farah and Athoillah, Ahdyat Zain (2023) The production of microbial biodiesel from cellulose-derived fungal lipid via consolidated bioprocessing. Environmental Technology & Innovation, 30. pp. 1-10. ISSN 2352-1864

	PDF (Journal) - Published Version Restricted to Repository staff only Download (1MB) | Request a copy
Preview	PDF (Scopus) - Supplemental Material Download (550kB) | Preview

Abstract

Lignocellulosic biomass from agro-industrial residues can potentially be used as carbon-rich carbohydrate feedstock for the conversion via oleaginous microorganisms into lipids, and subsequently microbial biodiesel. As multiple processes are required to conventionally convert lignocellulosic biomass into lipids, from the hydrolysis of carbohydrate into simple sugars for the fermentation, it is not economically favourable. Consolidated bioprocessing (CBP) combines the saccharification and fermentation of lignocellulosic biomass into a single processing step. As such, this study aims to screen multiple oleaginous fungi to identify the most effective lipid producers in CBP systems, followed by optimization study. Three different fungi (Aspergillus niger, Aspergillus oryzae, and Rhizopus sp.) were screened by the co-cultivation of monosaccharides. Rhizopus sp. yielded the highest lipid content. The response surface methodology (RSM) was used to optimize​ lipid production by Rhizopus sp. from cellulose in CBP systems. The CBP system with carbon concentration of 0.8% (w/v), temperature of 32 °C, and carbon to nitrogen ratio (C/N) of 99.5, yielded the optimum lipid content (51.8%). The lipid from Rhizopus sp. was then converted into biodiesel, that comprised 56.0% of saturated fatty acids. Fuel properties analysis indicated that microbial biodiesel from lipids of Rhizopus sp. is a promising alternative to diesel fuel.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Biodiesel, Biofuel, Consolidated bioprocess, Lignocellulosic biomass, Lipid, Oleaginous fungi
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering T Technology > TP Chemical technology > TP248.13 Biotechnology T Technology > TP Chemical technology > TP315 Fuel T Technology > TP Chemical technology > TP370 Food industry and trade T Technology > TP Chemical technology > TP500 Fermentation industries. Beverages. Alcohol T Technology > TP Chemical technology > TP670 Oils, fats, waxes
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr Farah Binti Ahmad
Date Deposited:	06 Apr 2023 09:07
Last Modified:	14 Apr 2023 12:07
URI:	http://irep.iium.edu.my/id/eprint/104290

Actions (login required)

View Item