Advances in fucoidan extraction and structure-bioactivity relationships.

Area of Science:

• Marine Biotechnology
• Natural Product Chemistry
• Biochemistry

Background:

• Fucoidan, a sulfated polysaccharide from brown seaweeds, exhibits diverse bioactivities.
• Its structure (monosaccharide composition, backbone, branching, sulfation) varies significantly.
• Extraction methods impact structural integrity and bioactivity, leading to research inconsistencies.

Purpose of the Study:

• To review advances in fucoidan extraction techniques.
• To evaluate the effects of extraction on yield, purity, and structural integrity.
• To examine structure-bioactivity relationships using modern analytical approaches.

Main Methods:

• Critical review of extraction optimization and sequential extraction strategies.
• Analysis of structure-bioactivity relationships through molecular docking and multi-omics.
• Integrative systems-level analyses to consolidate findings.

Main Results:

• Extraction methods critically influence fucoidan yield, purity, and structural integrity.
• Advanced analytical techniques provide deeper insights into structure-function correlations.
• A framework is emerging to connect extraction, structure, and biological activity.

Conclusions:

• Standardized extraction and advanced analysis are crucial for consistent fucoidan research.
• Understanding structure-bioactivity relationships is key to harnessing fucoidan's therapeutic potential.
• This review consolidates current knowledge, guiding future fucoidan investigations.