Mahiuddin, S. and Renoncourt, Audrey and Bauduin, Pierre and Touraud, Di and Kunz, Werner (2005) Horseradish peroxidase activity in a reverse catanionic microemulsion. LANGMUIR, 21 (12). pp. 5259-5262. ISSN 0743-7463,
Full text not available from this repository.Abstract
In this paper we present the first results of enzymatic activities in a reverse microemulsion medium based on a mixture of an anionic and a cationic surfactant, called catanionic microemulsion. The studied system is composed of sodium dodecyl sulfate (SDS)/dodecyltrimethylammonium bromide (DTAB)/n-hexanol/ citrate buffer/n-dodecane, with high SDS/(SDS + DTAB) weight fractions. It turns out that the results are similar to those obtained in classical reverse microemulsions, except that the presence of DTAB exerts an inhibiting effect on the enzyme. Nevertheless, enzymatic superactivities are found even at a DTAB to total surfactant ratio of 15%, corresponding to 3% weight fraction of cationic surfactant in the microemulsion. The influence of pH and hexanol content on the enzymatic activities is also studied.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ENZYMATIC-ACTIVITY; PHASE-BEHAVIOR; SYSTEMS; SURFACTANTS; SOLUBILIZATION; DEHYDROGENASE; SOLVENTS; ENZYMES; LIPASE; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 May 2021 09:02 |
| Last Modified: | 10 May 2021 09:02 |
| URI: | https://pred.uni-regensburg.de/id/eprint/36007 |
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