1. pH modelling in fermentation broths

   • M. N. Pons
   • L. Garrido-Sanchez
   • J. M. Engasser

   Originals Pages: 1 - 6

2. Design and operation of pulsed anaerobic digesters

   • M. Etzold
   • E. A. Stadlbauer

   Originals Pages: 7 - 12

3. Effects of suboptimal environmental conditions on immobilized bacteria growing in continuous culture

   • R. Diekmann
   • M. Naujoks
   • D. C. Hempel

   Originals Pages: 13 - 17

4. A theoretical and experimental evaluation of a novel radial-flow hollow fiber reactor for mammalian cell culture

   • L. G. Cima
   • H. W. Blanch
   • C. R. Wilke

   Originals Pages: 19 - 30

5. Investigations of heat treatment to improve the isolation of intracellular enzymes

   • M.-R. Kula
   • J. Schnell

   Originals Pages: 31 - 38

6. The biooxidation of methanol, ethanol and isopropanol by a defined co-culture at elevated temperatures

   • N. Al-Awadhi
   • G. Hamer
   • T. Egli

   Originals Pages: 39 - 45

7. Product reports from Japan

   Report Pages: 47 - 47

8. Announcements

   Announcement Pages: 48 - 48