US5147793A
Expired / Lapsed
US
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Biocatalytic oxidation using soybean peroxidases
Assignee: Wiley Organics Inc
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Filing: 1990-10-18
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Granted: 1992-09-15
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Expires: 2010-10-18
Abstract
Abstract Biocatalytic oxidative processes wherein oxidizable substrates are reacted with peroxides in the presence of a peroxidase such as soybean peroxidase or another legume peroxidase; an oxidative coupling reaction for producing phenolic resins; a method for the purification of peroxidase enzyme-containing extracts generally also are described.
Inventors
- 👤 Mark A. Johnson
- 👤 Alexander R. Pokora
- 👤 William L. Cyrus, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:12
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/0004; C12N9/0065; C08; C08G; C08G61/00; C12P; C12P7/00; C12P7/02; C12P7/22
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
31 words
A method for biocatalytic oxidation of an oxidizable substrate which comprises preparing a solution of said oxidizable substrate and contacting said solution with soybean hulls in the presence of a peroxide.
Claim 2
Independent Claim
31 words
A method for biocatalytic oxidation of an oxidizable substrate which comprises preparing a solution of said oxidizable substrate and contacting said solution with soybean hulls in the presence of a peroxide.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein said oxidizable substrate is a phenol or an aromatic amine.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein said peroxide is hydrogen peroxide.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein said oxidation is carried out in an aqueous medium.
Claim 6
Dependent Claim
17 words
The process of claim 1 wherein said process is a process for oxidative coupling of a phenol.
Claim 7
Dependent Claim
18 words
The process of claim 4 wherein said medium includes water and a water miscible or water immiscible solvent.
Claim 8
Dependent Claim
14 words
The method of claim 1 wherein said hulls are crushed and washed with toluene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |