The Synergy and Mode of Action of Cyperus rotundus L. Extract Plus Ampicillin against Ampicillin-Resistant Staphylococcus aureus

Table 2

Agar disc diffusion screening of S. aureus ATCC 29213 and S. aureus DMST strains.

Pathogenic bacteria	Inhibition zone (mm)
	CRE (250 mg/ml)	AMP (10 µg/disc); (positive control)	10% DMSO; (negative control)
S. aureus ATCC 29213	12 mm.	10 mm.	0 mm.
S. aureus DMST 20651	15 mm.	0 mm.	0 mm.
S. aureus DMST 20652	15 mm.	0 mm.	0 mm.
S. aureus DMST 20653	15 mm.	0 mm.	0 mm.

S. aureus ATCC 29213 was used as a reference strain; AMP = ampicillin; CRE = Cyperus rotundus extract; DMSO = dimethyl sulfoxide.