Abstract
There is a current tendency towards bioactive natural products that can be used in different areas such as food, pharmaceutical, and biomedical. In the last decades, polysaccharides have attracted increasing interest because of their potent nontoxic effects, therapeutic properties, and diversified range of applications. Polysaccharides are complex and heterogeneous macromolecules constituted of different monosaccharides and, in some cases, of glucuronic acid and sulphate groups. Polysaccharides with biological activity can be derived from plants, animals and microorganisms, especially microalgae. Microalgae are considered one of the most promising sources of these compounds that have already proved to have several important biological properties. In this sense, our objective is to elucidate the use of bioactive polysaccharides from microalgae in biomedical applications, emphasizing the biological activity of these compounds. Furthermore, the microalgal biomass production systems and polysaccharides extraction methods were presented and discussed.
Keywords: Algae, natural products, bioactive compounds, biological activity, sulphated polysaccharides, exopolysaccharides.
Graphical Abstract
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