Preparation, characterization and quantification of active...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 5/07 (2010.01)

Patent

CA 2436691

A process for preparing an active animal cell-growth-enhancing fraction of a hydrolysate of plant tissue, animal tissue or microorganism ultrafiltrate material, especially a fraction of a yeastolate ultrafiltrate, comprising forming a precipitate from said fraction with a water-soluble solvent is disclosed. Such solvents as alkanols, alkyl sulfoxides, ketones or alkyl nitriles, especially lower (C1 - C5) alkanols, particularly ethanol, can be used. The invention also relates to an active animal cell- growth-enhancing fraction of a hydrolysate of plant tissue, animal tissue or microorganism ultrafiltrate material, especially a fraction of a yeastolate ultrafiltrate, substantially free of aromatic and methyl group bearing compounds which has improved cell-growth-enhancing properties.

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