3.5.1.79	pH-stability and temperature-stability is improved significantly by increasing ionic strength of the buffer	
3.5.1.79	stability is dependent on the high ionic strength of the buffer	
3.5.1.79	the enzyme stability is optimal at salt concentrations of 0.2 M and above	
3.5.1.79	the substrate phthalimido carbacephem stablilizes the enzyme