Liquid proteinase concentrate and method for preparation
US4543333A · kind A · utility
9Cited by
8References
6Claims
0Family size
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Key dates
| Filing date | Jun 5, 1984 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Jun 5, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/38663
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A storage stable liquid enzyme concentrate of Subtilisin Carlsberg containing 0.5-6.5 Anson Units of proteinase per gram of concentrate and method for preparing same. Solid form proteinase is extracted with 70-100 parts by volume propylene glycol, 30-0 parts by volume of water, then adjusted as necessary to 60-85% by wt. of the glycol. Stabilizing agents in the concentrate are 0.1-1 mol/Kg of a member selected from the group consisting of Na, K, and Ca glutamates, and glycinates, and acetamide, and also a calcium ion content of 0.04-0.5% by wt., pH range is 5-8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.