Hemopeptide having peroxidase activity for bleaching dyes
US5273896A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1990 |
| Grant date | Dec 28, 1993 |
| Priority date | — |
| Expiry date | Oct 17, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06L4/12
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The transfer of a textile dye from a dyed fabric to another fabric during washing or rinsing is inhibited by adding an enzyme exhibiting peroxidase activity or an enzyme exhibiting a suitable oxidase activity to the wash liquor in which said fabrics are washed and/or rinsed. Peroxidase is produced extracellularly by some strains of Bacillus pumilus. The novel peroxidase preparation from B. pumilus is a microperoxidase, i.e. it contains hemopeptide as an active component. The preparation has improved stability at high temperature, at high pH and at high concentrations of hydrogen peroxide. It can be produced without undesired catalase activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.