The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2000
Filed:
Jun. 30, 1998
Yutaka Miyauchi, Takasaki-shi, Gunma-ken, 370-0845, JP;
Shigeo Hasegawa, Saitama-ken, JP;
Kazuhiko Otoguro, Tokyo, JP;
Kanki Komiyama, Tokyo, JP;
Other;
Abstract
Citrus amanatsudaidai peel extract, which was used as a starting materials was purified over various kinds of column chromatography (activated carbon, Amberlite IR-120B [H.sup.+ ], cellulose, Sephadex G25 and HPLC) to isolate a peptide as a white powder. This peptide is a water-soluble neutral substance and shows positive reactions to ninhydrin and sodium nitroprusside and negative reactions to anisaldehyde, phenolsulfuric acid and Dragendorff reagent. Amino acids constituting the peptide of the present invention contain aspartic acid and oxylysine in large amounts. Hair growers containing the peptide of the present invention were successful in promoting 150% proliferation of rabbit hair papilla cells when applied in a concentration of 1.4 .mu.g/ml.