. At the
lowest inoculum 103 CFU/mL (results not shown), all five
compounds tested exhibited a bactericidal effect against S. aureus.
At 0.50% (w/v), all those compounds required only 30 min to
completely eliminate the initial population of S. aureus, whereas
high and medium MW chitosans at 0.25% (w/v) exerted their
activity earlier (by 30 min) than the other three compounds
(by 60 min). At the lowest concentration tested, high MW chitosan
was more eff