1. Continuous production of citric acid with recirculation of the fermentation broth after product recovery

   • S. Wieczorek
   • H. Brauer

   Article Pages: 75 - 77

2. Fed-batch culture of yeast Saccharomyces cerevisiae with a DO-stat method by a fuzzy controller

   • Fan-Chiang Yang
   • Der-Wei Maa

   Article Pages: 79 - 82

3. Hydrodynamics of non-Newtonian liquids in external-loop airlift bioreactors

   • M. Gavrilescu
   • R. Z. Tudose

   Article Pages: 83 - 89

4. Utilizing the macroporous packed bed for insect cell/baculovirus expression

   • Tzyy-Wen Chiou
   • Yu-Chi Wang
   • Hwai-Shen Liu

   Article Pages: 91 - 100

5. The effect of soluble alginate and calcium on β-galactosidase activity produced by the thermotolerant, ethanol-producing yeast strain Kluyveromyces marxianus imb3

   • D. Brady
   • S. R. Logan
   • A. P. McHale

   Article Pages: 101 - 104

6. Dispersed phase hold-up in rotary disc contactor

   • P. Kalaichelvi
   • T. Murugesan

   Article Pages: 105 - 111

7. Biosorption of Cu by Thiobacillus ferrooxidans

   • A. Ruiz-Manríquez
   • P. I. Magaña
   • R. Guzmán

   Article Pages: 113 - 118

8. Dispersed phase holdup and mass transfer in liquid pulsed column

   • D. Venkatanarasaiah
   • Y. B. G. Varma

   Article Pages: 119 - 126

9. Comparative effect of different aerobic pretreatments on the kinetics and macroenergetic parameters of anaerobic digestion of olive mill wastewater in continuous mode

   • R. Borja
   • J. Alba
   • E. Sánchez

   Article Pages: 127 - 134

10. Comparison of the Baker's yeast process performance in laboratory and production scale

    • S. George
    • G. Larsson
    • S.-O. Enfors

    Article Pages: 135 - 142

11. Augmented Lagrange decomposition method for optimal control calculation of batch fermentation processes

    • R. G. Tsoneva
    • T. D. Patarinska
    • I. P. Popchev

    Article Pages: 143 - 153