High Lipid Induction in Microalgae for Biodiesel Production
By K. Sharma, Holger Schuhmann, Peer Schenk. 2012
861 citations recorded by the source corpus.
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.
Subfields: Biomedical Engineering, Molecular Biology, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/878e113ee5e88366dadc029e07784b05728cb1c6
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Citations in the corpus
- Nutrient remediation rates in municipal wastewater and their effect on biochemical composition of the microalga Scenedesmus sp. AMDD (2013, background): “As dilution rate decreased, and therefore algal growth is slowed, the requirement for the synthesis of new membrane compounds decreases [57].”
- Trends and novel strategies for enhancing lipid accumulation and quality in microalgae (2016, background): “have been explored by several researchers to enhance lipid accumulation in microalgae [19,20].”
- Effect of Salinity, pH, Light Intensity on Growth and Lipid Production of Microalgae for Bioenergy Application (2015, background): “Various stress conditions have been studied with different experimental setups to obtain the desired lipid in high amount for biodiesel production (Sharma et al., 2012; Fan et al., 2014).”
- Effects of Environmental Factors and Nutrient Availability on the Biochemical Composition of Algae for Biofuels Production: A Review (2013, background): “Details concerning algae biomass production processes, different processing technologies for conversion into biofuels and bioproducts, and challenges associated with commercialization of algal biofuels have been discussed thoroughly in recent reviews [11,32,35,45].”
- Fatty acids of microalgae: diversity and applications (2021, background): “For example, the use of nitrogen and phosphorus starvation in some species of microalgae led to an increase in the synthesis of total lipids by 15–54%, temperature stress by 12–21.7% (Illman et al. 2000; Sharma et al. 2012).”
- Strategies to enhance production of microalgal biomass and lipids for biofuel feedstock (2017, background): “algae grown at different temperatures, the properties of algal biodiesel are expected to change under different climates and seasons (Sharma et al., 2012).”