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
1998-11-03
2000-03-14
Nutter, Nathan M.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Scleroproteins, e.g., fibroin, elastin, silk, etc.
530355, 435265, 435273, C07G 700, C08L 8900, C09D18900
Patent
active
060374519
ABSTRACT:
The present invention is a process for degreasing bone for the manufacture of gelatin. A lipase solution at a concentration of greater than 0.1 ppm is added to a collagen containing material and treated for a time sufficient to solubilize the fat contained in the collagen containing material to produce degreased collagen containing material with a fat content of less than 1 weight percent.
REFERENCES:
patent: 4220724 (1980-09-01), Berg et al.
Eastman Kodak Company
Nutter Nathan M.
Ruoff Carl F.
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