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Biofuels

Biofuels

The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...

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Updated: May 2, 2026

Analysis of Fatty Acid Content and Composition in Microalgae

Analysis of Fatty Acid Content and Composition in Microalgae

Published on: October 1, 2013

Total Fatty Acid Content Determination of Whole Microalgal Biomass Using In Situ Transesterification.

Stefanie Van Wychen¹, Lieve M L Laurens²

¹BioEconomy and Sustainable Transportation Directorate, National Renewable Energy Laboratory, Golden, CO, USA.

Methods in Molecular Biology (Clifton, N.J.)

|April 30, 2026

Summary

Quantifying total fatty acid content in algal biomass is crucial for comparing strains and conditions. A direct, acid-catalyzed transesterification method offers a high-throughput, accurate approach for this essential analysis.

Keywords:

Fatty acid methyl ester Fatty acids In situ transesterification

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Analysis of Fatty Acid Content and Composition in Microalgae

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Published on: October 1, 2013

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Published on: June 24, 2016

Area of Science:

Biomass analysis
Algal biotechnology
Biofuel precursors

Background:

Fatty acids in algal biomass are key biofuel precursors.
Accurate quantification is vital for strain and process comparison.
Existing methods require precise lipid content determination.

Purpose of the Study:

To present a high-throughput, accurate method for quantifying total fatty acid content in microalgal biomass.
To enable precise comparison of algal strains and growth conditions.

Main Methods:

Direct, acid-catalyzed transesterification of whole microalgal biomass.
Lipid solubilization and fatty acid liberation.
Gas chromatography for fatty acid methyl ester quantification.

Main Results:

The described method requires less than 10 mg of biomass per sample.
The procedure is high-throughput and highly accurate.
Enables detection of small but significant differences between strains.

Conclusions:

Direct transesterification is an effective, strain-agnostic method for algal fatty acid analysis.
This method provides the precision needed for comparative studies.
Facilitates efficient screening of algal strains for biofuel production.