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US 8,263,135 B2Granted
Process for isolating biomaterial from tissue and an isolated biomaterial extract prepared therefrom
OwnerJackie Y. Ying, Shona Pekinventors
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Abstract
A process for isolating a biomaterial extract from tissue is disclosed. The process comprises the step of contacting the tissue with an extracting solution so as to extract a biomaterial into solution. A solution containing the biomaterial extract is separated before being freeze-dried at a rate sufficient to enable the biomaterial to be isolated. The examples relate to the extraction of collagen from skin or hide using an acetic acid solution as the solvent.
Claims11
A process for isolating collagen from biological tissue comprising:
- contacting the tissue with an extracting solution so as to extract collagen into solution;
- separating a solution containing the collagen by centrifuging or by filtration;
- removing fat and other contaminants from the surface of the separated solution directly prior to freeze-drying the separated solution and freeze-drying the separated solution at a rate sufficient to enable the collagen to be isolated.
Dependencies are inferred from the claim text.