Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai
Reexamination Certificate
2005-10-27
2010-12-14
Kam, Chih-Min (Department: 1656)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Peptide containing doai
C530S353000, C530S422000, C426S657000
Reexamination Certificate
active
07851441
ABSTRACT:
A low-molecular-weight water-soluble elastin having a molecular weight of about 10,000 to 30,000 and a high-molecular-weight water-soluble elastin having a molecular weight of about 30,000 to 300,000 are provided, 79% to 84% of the constituent amino acids of the elastin comprising proline, glycine, alanine, and valine, 2% to 3% comprising aspartic acid and glutamic acid, 0.7% to 1.3% comprising lysine, histidine, and arginine, and 0.2% to 0.4% comprising desmosine and isodesmosine. The low-molecular-weight water-soluble elastin that is obtained may be used in a functional food or a medicine. Such a high-purity water-soluble elastin may be produced by obtaining pure insoluble elastin by subjecting animal body tissue to a collagen removal treatment and then fragmenting the insoluble elastin by means of a solubilizing liquid. It may be produced simply, merely by adjusting the concentration of an alkaline solution and the reaction time without recovering insoluble elastin from the animal body tissue.
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Maeda Iori
Okamoto Kouji
Yamada Hiroshi
Kam Chih-Min
Kyushu Institute of Technology
Sughrue & Mion, PLLC
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