1. A correlation for interfacial area in co-current gas-liquid downflow through packed beds

   • G. S. Venkata Ratnam
   • D. Venkata Narasaiah
   • Y. B. G. Varma

   Originals Pages: 53 - 59

2. A pulsing device for packed-bed bioreactors: I. Hydrodynamic behaviour

   • E. Roca
   • A. Sanromán
   • J. M. Lema

   Originals Pages: 61 - 73

3. A pulsing device for packed-bed bioreactors: II. Application to alcoholic fermentation

   • A. Sanromán
   • E. Roca
   • J. M. Lema

   Originals Pages: 75 - 81

4. Transient state analysis of biochemical reactor using coimmobilized system

   • N. Chithra
   • A. Baradarajan

   Originals Pages: 83 - 89

5. An energy cost minimizing strategy for fermentation dissolved oxygen control

   • R. W. Shields
   • E. I. Kao

   Originals Pages: 91 - 97

6. Critical analysis of the effect of metal ions on gluconic acid production by Aspergillus niger using a treated Indian cane molasses

   • D. Subba Rao
   • T. Panda

   Originals Pages: 99 - 107