1. Introduction -- 2. General Characteristics of Technical Enzymes -- 3. Description of Enzymes -- 4. Carrier-Bound Enzymes: Methods of Immobilization -- 5. Application of Technical Enzyme Preparations -- 6. Legal Considerations -- 7. Economic Considerations for the Use of Technical Enzymes -- 8. The Market for Technical Enzyme Preparations -- App. A. List of Enzyme Producers -- App. B. List of Some Industrial Enzymes