1. Simulation of the dynamics in the Baker's yeast process

   • S. -O. Enfors
   • J. Hedenberg
   • K. Olsson

   Originals Pages: 191 - 198

2. Aqueous two-phase metal affinity extraction of heme proteins

   • G. E. Wuenschell
   • E. Naranjo
   • F. H. Arnold

   Originals Pages: 199 - 202

3. Butanol recovery from fermentations by liquid-liquid extraction and membrane solvent extraction

   • W. J. Groot
   • H. S. Soedjak
   • J. M. K. Timmer

   Originals Pages: 203 - 216

4. Influence of some fermentation medium components on the response of a gas membrane sensor for detection of volatiles

   • A. Groboillot
   • M. N. Pons
   • J. M. Engasser

   Originals Pages: 217 - 224

5. Control in bioreactors showing gradients

   • S. R. Weijers
   • G. Honderd
   • K. Ch. A. M. Luyben

   Originals Pages: 225 - 230

6. Bacterial dissolution of pyrite by Thiobacillus ferrooxidans

   • Y. Konishi
   • S. Asai
   • H. Katoh

   Originals Pages: 231 - 237

7. Product reports from Japan

   Report Pages: 238 - 239

8. Announcements

   Events Pages: 240 - 240