Sensor arrays Artificial organs 4 Electronic NOSE 4 Electronic equipment 4 Acid titration 2 Acidithiobacillus thiooxidans 2 Aerobic condition 2 Air-lift bioreactors 2 Aroma release 2 Artificial Neural Network 2 Bacteria (microorganisms) 2 Bacterial strains 2 Beam position estimation 2 Biochemical process 2 Bioconversion 2 Bioreactors 2 Charge coupled devices 2 Chemometric analysis 2 Cluster analysis 2 Culture medium 2 Data analysis algorithms 2 Data handling 2 Data manipulations 2 Data treatment 2 Density measurement (optical) 2 Discriminant analysis 2 Electronic nose 2 Electronic noses 2 Elemental sulfur 2 Essence encapsulation 2