Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Scleroproteins – e.g. – fibroin – elastin – silk – etc.
Patent
1993-10-27
1995-10-17
Russel, Jeffrey E.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Scleroproteins, e.g., fibroin, elastin, silk, etc.
530354, 530840, C07K 114, C07K 1447
Patent
active
054592410
ABSTRACT:
A process for the preparation of gelatin from powdered bone, which consists in subjecting the powdered bone to a first treatment with an acid solution at a temperature below ambient temperature in order to solubilize the phosphates, and then to a second treatment with an acid solution at a temperature of between 60.degree. C. and 85.degree. C. in order to isolate a broth from which the gelatin is extracted. Type A gelatin with a gel strength of more than 300 blooms and a gelling time of less than 100 seconds.
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Chemistry, Bailar, Jr. et al, published 1978 by Academic Press, pp. 418-420.
P. J. Makarewicz, et al., "Kinetics of Acid Diffusion and Demineralization of Bone", J. Photog. Sci.; 1980, 28 (5), 177-184 (Preprint).
Moy Jacques
Takerkart Georges
Russel Jeffrey E.
Systems Bio Industries
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