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Other Algae

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...

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...

Red Algae

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 Algae

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...

Biosynthesis of Lipids

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Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...

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Updated: Sep 1, 2025

Analysis of Fatty Acid Content and Composition in Microalgae

Analysis of Fatty Acid Content and Composition in Microalgae

Published on: October 1, 2013

Paramylon and Other Bioactive Molecules in Micro and Macroalgae.

Laura Barsanti¹, Lorenzo Birindelli¹, Paolo Gualtieri¹

¹Istituto di Biofisica, Area della Ricerca, Consiglio Nazionale delle Ricerche, Via Moruzzi 1, 56124 Pisa, Italy.

International Journal of Molecular Sciences

|August 12, 2022

Summary

Algae are rich sources of bioactive compounds like polysaccharides, offering nutraceutical and pharmaceutical benefits. This review explores their properties, applications, and extraction methods for sustainable health solutions.

Keywords:

Euglena gracilis PUFAs algae pigments polyphenols polysaccharides vitamins

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Area of Science:

Marine Biotechnology
Natural Product Chemistry
Phycology

Background:

Algae produce diverse compounds with significant nutraceutical, pharmacological, and biomedical potential.
Polysaccharides, pigments, fatty acids, and phenols are key metabolites under investigation.
Algae offer a sustainable resource for human health and industrial applications.

Purpose of the Study:

To review the properties and applications of micro- and macroalgae metabolites.
To highlight the therapeutic potential of algal compounds, including antioxidant, antimicrobial, antitumor, and immunomodulatory activities.
To document current technologies for extracting bioactive molecules from algae.

Main Methods:

Literature review of scientific publications on algae metabolites.
Analysis of reported properties and industrial applications of algal compounds.
Documentation of extraction strategies and technologies.

Main Results:

Algal polysaccharides are extensively used in pharmaceutical, food, and chemical industries.
Algal compounds exhibit promising therapeutic effects, including antioxidant and immunomodulatory properties.
Advanced applications in medicine and nutrition are emerging due to algae's bioactive molecules.

Conclusions:

Algae represent a valuable and sustainable source for developing novel health supplements and industrial products.
Further research into algal metabolites can unlock new therapeutic and commercial opportunities.
Optimized extraction technologies are crucial for harnessing the full potential of algal bioactive compounds.