Compositions obtained from chlorella extract having...

A - Human Necessities – 61 – K

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A61K 36/05 (2006.01) A61P 37/02 (2006.01)

Patent

CA 2723484

The disclosed subject matter, in one aspect, relates to compounds and compositions {e.g., polysaccharides and polysaccharide complexes) and methods for providing and using such compounds and compositions. Disclosed are compositions comprising a polysaccharide or polysaccharide complex obtained from Chlorella, wherein the polysaccharide or polysaccharide complex has a molecular weight of from about 1 x 10 3 to about 1 x 10 6 Da. Also disclosed are methods of providing a polysaccharide or polysaccharide complex, comprising the steps of providing a Chlorella extract, contacting the extract with a solvent to provide a precipitate, contacting the precipitate with additional substances {e.g., a surfactant) and isolating an insoluble fraction, and size fractioning the insoluble fraction, thereby providing the polysaccharide or polysaccharide complex. Disclosed are also methods for using the disclosed polysaccharide and polysaccharide compositions.

Sous lun de ses aspects, la présente invention porte sur des composés et des compositions (par exemple, des polysaccharides et des complexes polysaccharidiques) ainsi que sur des procédés destinés à fournir et à utiliser de tels composés et de telles compositions. L'invention porte sur des compositions comprenant un polysaccharide ou un complexe polysaccharidique obtenu à partir de Chlorella. La masse moleculaire du polysaccharide ou du complexe polysaccharidique est d'environ 1 x 103 à environ 1 x 106 Da. L'invention porte également sur des procédés destinés à fournir un polysaccharide ou un complexe polysaccharidique. Le procédé consiste à se procurer un extrait de Chlorella ; à mettre lextrait en contact avec un solvant pour produire un précipité; à mettre le précipité en contact avec des substances supplémentaires (par exemple, un agent tensio-actif); à isoler une fraction insoluble; et à fractionner la fraction insoluble pour fournir le polysaccharide ou le complexe polysaccharidique. L'invention porte également sur des procédés dutilisation du polysaccharide et des compositions polysaccharidiques décrits.

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