Galactosidases Escherichia coli 10 metabolism 8 Cyclic AMP 6 Glucose 6 Mutation 6 Time Factors 6 article 6 escherichia coli 6 microorganism 6 theoretical study 6 Alginate 4 Calcium 4 Cell Division 4 Enzyme Induction 4 Galactose 4 Glycerol 4 Glycosides 4 Hydrogels 4 Kinetics 4 Malates 4 Microstructure 4 Succinates 4 beta galactosidase 4 beta-Galactosidase 4 cyclic amp 4 galactosidase 4 in vitro study 4 nuclear magnetic resonance spectroscopy 4 synthesis 4