Analysis of Lipid Yield and Composition of Azolla filiculoides Biomass for Biodiesel Production
September 2, 2015http://link.springer.com/article/10.1007/s12155-015-9665-3/fulltext.html
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The aquatic fern Azolla is one of the fastest-growing nitrogen-fixing plants on Earth and is considered as a potential source of biomass for biofuel production. Paul Brouwer from Utrecht University in the Netherlands analyzed the lipid fraction from Azolla filiculoides to determine its suitability for biodiesel production.
A. filiculoides biomass was produced at 800 ppm CO2, to mimic a cultivation system using CO2 waste from industry and increase Azolla's productivity. The harvested biomass contained 7.92% dry weight crude lipids. Drying conditions also did not affect lipid composition or yield.
Based on the fatty acid profile, it is estimated that biodiesel from Azolla meets the current biofuel standards. However, it contains relatively high concentrations of lignoceric acid and has mid-chain hydroxy compounds. This may require a fractionation step to remove these compounds to produce high-quality biodiesel from Azolla.
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