Method for disinfecting and washing of immobilized lactase
US4465772A · kind A · utility
2Cited by
1References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 1, 1981 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Oct 1, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/80
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Effective disinfection and washing of immobilized lactase from Aspergillus oryzae is carried out after a period of hydrolyzing lactose by treatment of the immobilized lactase with aqueous solutions of pH's 2 to 4 and 6 to 8.7, one or both of which contain a disinfectant. The solution having a pH of 6 to 8.7 may be a phosphate buffered solution. The lactase may be immobilized on a high polymer compound by covalent linkage. The immobilized lactase has outstanding resistance to chemicals and wide pH stability so that decrease of lactase activity is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.