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Green Algae

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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Updated: Sep 13, 2025

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

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

Published on: January 7, 2019

Greener Extraction Solutions for Microalgal Compounds.

Gwendoline Kopp^1,2, Chiara Lauritano²

¹Marine Biology Research Group, Ghent University, Krijgslaan 281, B-9000 Gent, Belgium.

|July 25, 2025

Summary

This summary is machine-generated.

Green extraction methods offer sustainable alternatives to traditional organic solvents for isolating microalgal compounds. These eco-friendly techniques yield comparable or superior results for bioactive compounds, lipids, and pigments.

Keywords:

bioactive compounds green extraction lipids microalgae pigments

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Area of Science:

Biotechnology and Biochemistry
Sustainable Chemistry
Marine Biology

Background:

Conventional microalgal bioactive compound extraction uses polluting organic solvents, posing health and environmental risks.
There is a growing demand for sustainable and environmentally benign extraction technologies in the microalgae industry.

Purpose of the Study:

To review and highlight green extraction techniques for bioactive compounds from microalgae.
To compare the efficacy of green extraction methods against conventional techniques in terms of yield and compound types.
To provide an overview of the current landscape and future research directions for green extraction from microalgae.

Main Methods:

Comprehensive literature review of green extraction techniques applied to various microalgal species.
Analysis of extracted compounds, yields, and applications.
Comparative assessment of green versus conventional extraction yields, focusing on lipids and pigments.

Main Results:

Green extraction methods demonstrate comparable or superior yields to conventional solvent-based techniques.
Lipids and pigments are the most frequently studied compounds using green extraction from microalgae.
Various green extraction techniques show promise for diverse microalgal applications.

Conclusions:

Green extraction is a viable and sustainable alternative to conventional methods for microalgal compound isolation.
Further research is needed to expand the scope of green extraction to a wider range of bioactive compounds and microalgal species.
This review provides a foundation for future advancements in sustainable microalgal biotechnology.