Purification of microbial enzyme extracts using synthetic polyelectrolytes
US4055469A · kind A · utility
28Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1976 |
| Grant date | Oct 25, 1977 |
| Priority date | — |
| Expiry date | Dec 10, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/816
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Nucleic acids and unwanted proteins are removed from microbial enzyme extracts by precipitation with water-soluble, cationic polymers comprised of monomers having the structure ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group, or the equivalent and R.sub.2 is a nitrogen containing group capable of carrying a positive electrical charge when the polymer is dissolved in an aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.