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Articles

Biodiesel from oleaginous microbes: opportunities and challenges

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Pages 45-59 | Received 06 Aug 2017, Accepted 15 Oct 2017, Published online: 08 Dec 2017
 

ABSTRACT

The quest for renewable and alternative sources of energy is a pressing demand of the 21st century considering the rapid escalation in demand owing to the rising population. Biodiesel is one of the favorite candidates that many scientists, investors, policymakers, etc. are banking upon for fulfilling it's demand. Production of biodiesel from plant sources has long been researched, but with the rising population there is an added issue of the food vs. fuel controversy, which jeopardizes this source as an option. Considering this background, microbial sources for biodiesel production, viz. oleaginous yeasts, fungi and microalgae, are perfect candidates,which can serve the purpose of fulfilling the energy demand while avoiding the food vs. fuel controversy. In this review article, a comprehensive viewpoint of lipid production from various microbial sources is discussed, with major emphasis on understanding the biochemistry of lipid accumulation, along with the biosynthesis of fatty acids and triacylglycerides, which comprise the majority of the lipids. Emphasis is placed on highlighting the different biochemical and metabolic strategies adopted to improve lipid yields. Finally, a comparison is drawn between the biodiesel produced from algal and yeast sources.

Acknowledgements

The authors express their gratitude to the Indian Institute of Technology Kharagpur, India, for financial assistance (No. IIT/ACAD (PGS&R)/F.II/2/Ph.D./R/AUTUMN/2015-2016/ Date: 10-06-2015).

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was funded by the Indian Institute of Technology Kharagpur [grant number No:IIT/ACAD (PGS&R)/F.II/2/Ph.D./R/AUTUMN/2015-2016/ Date : 10-06-2015].

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