lyophilized powder, ≥50 units/mg protein

Type I, lyophilized powder, ≥10 units/mg protein (using p-nitrophenyl α-D-glucoside as substrate.)

Type V, ammonium sulfate suspension, 40-80 units/mg protein

lyophilized, powder, ≥6 U/mg

lyophilized powder, ≥2 units/mg solid

lyophilized powder, 10-30 units/mg solid

recombinant, expressed in E. coli, buffered aqueous solution; ≥20 units/mg protein; ≥40 units/ml

expressed in E. coli; ≥85% (SDS-PAGE); ≥20 units/mg protein