|  | CABEQ 20 (4) (2006) 353–478 | 

| Application of Lumping Analysis in Modelling the Living Systems – A Trade-off Between Simplicity and Model Quality   G. Maria | 353–373 | 
| Applicability of Mathematical Models in Defining the Behaviour Kinetics Distinction Among Microbial Strains  M. Bošnjak,  A. Bago Joksović,  J. Pigac,  Ž. Bošnjak Cihlar and  D. Hranueli | 375–388 | 
| Horizontal Tubular Bioreactors in Biotechnology  B. Šantek,  M. Ivančić Šantek,  P. Horvat,  S. Novak and  V. Marić | 389–399 | 
| Investigation on the Transient Conditions of a Rotating Biological Contactor for Bioethanol Production  A. Converti,  D. De Faveri,  P. Perego,  J. M. Domínguez,  J. C. M. Carvalho,  M. S. A. Palma and  M. Del Borghi | 401–406 | 
| Treatment of Domestic Wastewater with Simultaneous Electricity Generation in Microbial Fuel Cell under Continuous Operation  S. J. You,  Q. L. Zhao,  J. Q. Jiang and  J. N. Zhang | 407–412 | 
| α-Amylase Production in Fed Batch Cultivation of Bacillus caldolyticus: An Interpretation of Fermentation Course Using 2-D Gel Electrophoresis  J. Bader,  B. Neumann,  K. Schwab,  C. Scheler and  R. Bajpai | 413–420 | 
| Biotransformation of Phytosterols to Androstenedione in Two Phase Water-oil Systems  S. Stefanov,  D. Yankov and  V. Beschkov | 421–427 | 
| Removal of Pollutants with Activated Carbon Produced from K2CO3 Activation of Lignin From Reed Black Liquors  Y. Sun,  J. Zhang,  G. Yang and  Z. Li | 429–435 | 
| Ammoxidation of Straw Pulp Alkaline Lignin by Hydrogen Peroxide with Iron(II) Cation  Q. Jiang,  X. Zhang,  H. Mo and  Z. Li | 437–441 | 
| Characterisation of Agricultural and Agro-Industrial Residues as Raw Materials for Ethanol Production  C. Martín,  Y. López,  Y. Plasencia and  E. Hernández | 443–447 | 
| Process Calorimetry on Solid-state Fermentation of Vinegar Wastes in Bioreactor with Air Pressure Pulsation  J. Liu and  J. C. Yang | 449–455 | 
| Effect of Temperature on the Formation and Decomposition of Butan-2-3-dione in Wort Brewed with Sorghum and Barley During Fermentation  M. O. Nkiko,  E. A. Taiwo,  A. Uruebor and  A. Ogunyemi | 457–461 | 
| Hydrolysis of Micron Alkylketene Dimert Particles Under Alkaline Conditions  D. Ravnjak,  A. Može and  I. Plazl | 463–469 |