Abstract
Cold-adapted yeasts from Antarctica, still new and understudied microorganisms, attract considerable interest with their biotechnological potential to synthesise exopolysaccharides (EPS) and other biologically active substances. Yeasts of various genera, species, and strains have been selected as producers of EPS built of residual monosaccharides, the most common ones being mannose and glucose. The physicochemical and rheological properties of the EPS make them suitable for use as emulsifiers and stabilisers in cosmetics. An Antarctic strain produces an EPS with good emulsifying properties; also, its biomass contains biologically active substances that have photoprotective and antioxidant activities. Both products are included in cosmetic compositions designed to enhance the cellular metabolism of the skin and protect it against environmental damage. This chapter reviews the production, characteristics, and application of EPS and metabolites synthesised by cold-adapted Antarctic yeasts.
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