Cited by 886Algal biology and biofuel productionLipid metabolism and biosynthesisMicrobial Metabolic Engineering and Bioproduction

High lipid induction in microalgae for biodiesel production

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Sharma, Kalpesh K., Schuhmann, Holger, Schenk, Peer M.·2012·Energies

Abstract

Oil-accumulating microalgae have the potential to enable large-scale biodiesel production without competing for arable land or biodiverse natural landscapes. High lipid productivity of dominant, fast-growing algae is a major prerequisite for commercial production of microalgal oil-derived biodiesel. However, under optimal growth conditions, large amounts of algal biomass are produced, but with relatively low lipid contents, while species with high lipid contents are typically slow growing. Major advances in this area can be made through the induction of lipid biosynthesis, e.g., by environmental stresses. Lipids, in the form of triacylglycerides typically provide a storage function in the cell that enables microalgae to endure adverse environmental conditions. Essentially algal biomass and triacylglycerides compete for photosynthetic assimilate and a reprogramming of physiological pathways is required to stimulate lipid biosynthesis. There has been a wide range of studies carried out to identify and develop efficient lipid induction techniques in microalgae such as nutrients stress (e.g., nitrogen and/or phosphorus starvation), osmotic stress, radiation, pH, temperature, heavy metals and other chemicals. In addition, several genetic strategies for increased triacylglycerides production and inducibility are currently being developed. In this review, we discuss the potential of lipid induction techniques in microalgae and also their application at commercial scale for the production of biodiesel.

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  1. Bruton, T.; Lyons, H.; Lerat, Y.; Stanley, M.; Rasmussen, M.B. A Review of the Potential of Marine Algae as a Source of Biofuel in Ireland; Technical Report; Sustainable Energy Ireland: Dublin, Ireland, 2009.
  2. Callow, J.A., Ed.; Academic Press: Waltham, MA, USA, 1989; Volume 16, pp. 1-53.

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Authors
Sharma, K. K., Schuhmann, H., & Schenk, P. M.
Affiliations
The University of Queensland (AU)
Corresponding author
Schenk, Peer M.
Venue
Energies
Publisher
MDPI AG
Published
2012-05-18
Volume
5
Issue
5
Pages
1532-1553
ISSN
1996-1073 (ISSN-L)
OpenAlex
W2092921932
Cited by
886
References
111
Citations by year
2026: 27 · 2025: 37 · 2024: 31 · 2023: 49 · 2022: 64 · 2021: 72 · 2020: 65 · 2019: 98 · 2018: 61 · 2017: 100 · 2016: 89 · 2015: 84 · 2014: 68 · 2013: 34 · 2012: 5
FWCI
23.45
Type
journal article
Language
en
Open access
Locations
  • Energies (publishedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
Keywords
microalgae, biodiesel production, triglycerides, lipogenesis, nitrogen starvation, phosphorus deficiency, osmotic stress, heavy metals, radiation stress, temperature stress, pH stress, genetic engineering of algae

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