US4591565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for thermal destabilization of microbial rennet
Assignee: Novozymes AS
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Filing: 1982-05-03
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Granted: 1986-05-27
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Expires: 2002-05-03
Abstract
Abstract Thermal stability of microbial rennet is reduced by treatment of the rennet in aqueous medium with aliphatic or inorganic peroxy acids or salts thereof. Preferably, the microbial rennet is Mucor Miehei rennet and the peroxy acid is a lower aliphatic peroxy acid such as peracetic acid. The thermally destabilized microbial rennet is inactivated when whey containing the rennet is pasteurized.
Inventors
- 👤 Sven Branner-Jorgensen
- 👤 Palle Schneider
- 👤 Peter Eigtved
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:00
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/99; C12N9/14; C12N9/48; C12N9/50; C12N9/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A method for producing microbial rennet having reduced thermal stability in cheese making comprising reacting Mucor Miehei microbial rennet in an aqueous medium with effective amounts of a modifying agent selected from the group consisting of peracetic acid and salts thereof to produce a microbial rennet which has reduced thermal stability by at least 8° C. and which retains no less than 70% of its milk coagulating activity.
Claim 2
Independent Claim
68 words
A method for producing microbial rennet having reduced thermal stability in cheese making comprising reacting Mucor Miehei microbial rennet in an aqueous medium with effective amounts of a modifying agent selected from the group consisting of peracetic acid and salts thereof to produce a microbial rennet which has reduced thermal stability by at least 8° C. and which retains no less than 70% of its milk coagulating activity.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-26 | 1989-11-25 | 1990-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-26 | 1993-11-25 | 1994-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-26 | 1997-11-25 | 1998-05-27 | $7700.00 | Window Closed / Lapsed |