Microalgae-derived compositions for improving the health and appearance of skin

摘要

Provided herein are microalgal skin care compositions and methods of improving the health and appearance of skin. Also provided are methods of using polysaccharides for applications such as topical personal care products, cosmetics, and wrinkle reduction compositions. The invention also provides novel decolorized microalgal compositions useful for improving the health and appearance of skin. The invention also includes insoluble polysaccharide particles for application to human skin.

主权项

1. A particulate gel-forming composition, the composition produced by the process of:
extracting, from a microalgal cell culture medium a microalgal exopolysaccharide secreted by microalgal cells into the culture medium, wherein the microalgal cells are selected from the group consisting of Porphyridium, Chaetoceros, Chlorella, Dunaliella, Isochrysis, Phaeodactylum, Tetraselmis, Botryococcus, Chlorococcum, Hormotilopsis, Neochloris, Ochromonas, Gyrodinium, Ellipsoidion, Rhodella, Gymnodinium, Spirulina, Cochlodinium, Nostoc, Cyanospira, Cyanothece, Tetraselmis, Chlamydomonas, Dysmorphococcus, Anabaena, Palmella, Anacystis, Phormidium, Anabaenopsis, Aphanocapsa, Cylindrotheca, Navicula, Gloeocapsa, Phaeocystis, Leptolyngbya, Symploca, Synechocystis, Stauroneis, and Achnanthes; drying the extracted microalgal exopolysaccharide to form a film; heating the extracted microalgal exopolysaccharide at a temperature in a range from 135° C. to 152° C.; and generating the particulate gel-forming composition having an average size of between 0.1 to 400 microns, wherein the particulate gel-forming composition comprises the heated exopolysaccharide and increases in volume on contact with water by at least 200% so as to form a gel.