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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...
Other Algae01:19

Other Algae

The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
Red Algae01:23

Red Algae

Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
Overview of Algae01:28

Overview of Algae

The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
Microbial Bioremediation of Hydrocarbons01:26

Microbial Bioremediation of Hydrocarbons

Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...

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Related Experiment Video

Updated: Jun 28, 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

Microalgae: a potential source of polyunsaturated fatty acids.

M M El Abed1, B Marzouk, M N Medhioub

  • 1Institut National des Sciences et Technologies de la Mer, Laboratoire d'aquaculture, BP 59, 5000 Monastir Tunisie. amor.elabed@minedu.edunet.tn

Nutrition and Health
|November 18, 2008
PubMed
Summary

Marine microalgae oils offer a sustainable alternative to fish oils for essential omega-3 fatty acids. This study analyzed Tunisian microalgae, finding their lipid and fatty acid profiles vary with growth stage, highlighting their potential as a future dietary supplement source.

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Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
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Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids

Published on: January 7, 2019

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Last Updated: Jun 28, 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

Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
11:08

Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids

Published on: January 7, 2019

Area of Science:

  • Marine biology
  • Biochemistry
  • Nutritional science

Background:

  • Fish oils are primary sources of polyunsaturated fatty acids (PUFAs), essential omega-3 fatty acids.
  • Projected increases in global demand for omega-3 fatty acids may outstrip fish oil supply.
  • Marine microalgae are explored as alternative sources for supplemental dietary fatty acids.

Purpose of the Study:

  • To investigate the lipid and fatty acid composition of three microalgae species from Tunisian coastal waters.
  • To assess the variability in lipid and fatty acid profiles based on the cellular growth stage of these microalgae.

Main Methods:

  • Isolation of three microalgae species from Tunisian coastal waters.
  • Analysis of lipid content and fatty acid profiles.
  • Comparison of composition across different cellular growth stages.

Main Results:

  • The study identified significant variations in lipid and fatty acid composition among the three microalgae species.
  • Cellular growth stage was found to influence the accumulation of specific fatty acids, including omega-3s.
  • Detailed lipid profiles were established for each species at different growth phases.

Conclusions:

  • Marine microalgae represent a viable alternative source for PUFAs, particularly omega-3 fatty acids.
  • Understanding the impact of growth stage on microalgal lipid composition is crucial for optimizing extraction and application.
  • These findings support the potential of Tunisian microalgae for sustainable production of dietary fatty acids.