Preparation of an enzymatically active formulation embedded in silica gel

US4461832A · kind A · utility

Assignee

• BASF SE

Inventors

• Chung-Ji Tschang · Bad Dürkheim, DE
• Heinrich Klefenz · Hochdorf-Assenheim, DE
• Axel Sanner · Bischofswerda, DE
• Wolfgang Zahn

Key dates

• Filing date: May 10, 1982
• Grant date: Jul 24, 1984
• Expiry date: May 10, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S436/826
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A process for the preparation of an enzymatically active formulation embedded in silica gel, wherein an aqueous mixture of an enzymatically active formulation and a dissolved alkali metal silicate and/or ammonium silicate is suspended in an organic, water-immiscible fluid and then converted to a water-insoluble gel.