optimal conditions for detecting staphylokinase , phosphatase , protease , lipase , esterase , egg yolk factor , lysozyme , deoxyribonuclease , hyaluronidase , penicillinase , and alpha- , beta- , and delta-hemolysins in cell-free filtrates of selected strains of staphylococci by agar plate methods were established by studying the effect of factors such as buffer composition , ph , ionic strength , type of agar , nature and concentration of substrate , and certain metal ions .
C0023764
lipase
C0014894
esterase