S. aureus, S. capitis , and S. hominis exhibit different patterns FAME activity. S. aureus RN6390, S. capitis, and S. hominis were assayed for FAME activity/log CFU over 24 h. CFUs were generally the same among the strains with the beginning of stationary phase indicated by the arrow. Results are the average of three experiments. Vertical bars represent standard error of the observation; if no bar is apparent the standard error is smaller than the symbol. Detectable activity for S. aureus and S. capitis was seen at 4 h and for S. hominis at 24 h (P < 0.05).