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Related Concept Videos

Biofuels01:25

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...
Green Algae01:21

Green Algae

Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...

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Related Experiment Video

Updated: May 10, 2026

Analysis of Fatty Acid Content and Composition in Microalgae
07:44

Analysis of Fatty Acid Content and Composition in Microalgae

Published on: October 1, 2013

An efficient and scalable extraction and quantification method for algal derived biofuel.

Egan J Lohman1, Robert D Gardner, Luke Halverson

  • 1Montana State University, Department of Chemical and Biological Engineering and Center for Biofilm Engineering, Bozeman, MT 59717, USA.

Journal of Microbiological Methods
|July 2, 2013
PubMed
Summary

A new microwave-assisted method rapidly extracts and analyzes microalgal lipids for biodiesel production. This fast, reliable technique identifies specific compounds, improving biofuel precursor selection and quality assessment.

Keywords:
BiodieselFatty acid methyl ester (FAME)GC–FID/MSMicroalgaeNile Red fluorescenceTriacylglycerol (TAG)

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Area of Science:

  • Biotechnology
  • Analytical Chemistry
  • Renewable Energy

Background:

  • Microalgae synthesize valuable compounds like biofuel precursors and omega-3 fatty acids.
  • Accurate analysis of microalgal lipids is crucial for determining end-product quality and value.
  • Traditional lipid analysis methods are time-consuming and exhibit high variability.

Purpose of the Study:

  • To develop a fast and reliable method for extracting and characterizing microalgal lipids.
  • To identify specific lipid compounds responsible for fatty acid methyl ester (FAME) production for biodiesel.
  • To enable rapid, time-resolved analysis of lipid quantity and quality in microalgae.

Main Methods:

  • Microwave-assisted single-step cell disruption for lipid extraction from live microalgal cultures.
  • Gas chromatography-flame ionization detection (GC-FID) for characterizing extractable lipids (type, carbon chain length).
  • Transesterification of lipid extracts into FAMEs for direct comparison with total biodiesel potential via gas chromatography-mass spectrometry (GC-MS).

Main Results:

  • The method accurately characterizes extractable lipids and their contribution to total FAMEs.
  • It distinguishes FAMEs derived from extractable lipids versus residual cellular fractions.
  • The approach was validated on Phaeodactylum tricornutum, Chlamydomonas reinhardtii, and Chlorella vulgaris, showing robustness and reproducibility.

Conclusions:

  • The presented microwave-assisted method offers a rapid, robust, and reproducible approach for microalgal lipid analysis.
  • This technique is fundamental for identifying optimal microalgae strains for biodiesel production.
  • The method provides time-resolved insights into lipid profiles, crucial for optimizing cultivation and processing.