US2017273885A1PendingUtilityA1
Methods of producing lignin peroxidase and its use in skin and hair lightening
Assignee: R B T (RAKUTO BIO TECHNOLOGIES) LTDPriority: Dec 12, 2002Filed: Jun 8, 2017Published: Sep 28, 2017
Est. expiryDec 12, 2022(expired)· nominal 20-yr term from priority
A61P 43/00A61Q 5/08A61K 8/66A61P 17/00C12N 9/0065A61Q 19/02
45
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Claims
Abstract
Methods of producing lignin peroxidase are provided. Also provided are methods and cosmetic compositions suitable for skin and hair lightening as well as kits and an article-of manufacturing including active ingredients for skin and hair lightening.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . An aqueous extract of Phanerochaete chrysosporium fungus exhibiting lignin peroxidase enzymatic activity in the range of 500-2000 units per liter.
2 . The aqueous extract of claim 1 , wherein said lignin peroxidase enzymatic activity is 1500 units per liter.
3 . The aqueous extract of claim 1 , wherein said lignin peroxidase enzymatic activity is isoenzyme H1.
4 . The aqueous extract of claim 1 , wherein said lignin peroxidase enzymatic activity is a modified form of isoenzyme H2.
5 . The aqueous extract of claim 1 , wherein said lignin peroxidase is a dephosphorylated form of lignin peroxidase isoenzyme H2.
6 . The aqueous extract of claim 1 , wherein said extract is sterilized with a 0.45 μM filter membrane.
7 . The aqueous extract of claim 6 , wherein said extract is purified by ultrafiltration with a 10-kDa-cutoff.
8 . The aqueous extract of claim 7 , wherein said extract is purified by HPLC-anion exchange chromatography.
9 . The aqueous extract of claim 1 , wherein said aqueous extract has a pH of 4.7.
10 . The aqueous extract of claim 1 , wherein said lignin peroxidase activity is determined by oxidation of veratryl alcohol to veratryl aldehyde.Join the waitlist — get patent alerts
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