A new derivative of ionone from aerial parts of Viola odorata Linn. and its antibacterial role against respiratory pathogens

Clinical Phytoscience

International Journal of Phytomedicine and Phytotherapy

Table 1 Zone of inhibition of compound 1 and reference drug (erythromycin) against respiratory tract pathogens

S. no.	Microorganisms	Diameters of inhibition zone (mm) ± SEM^a
S. no.	Microorganisms	Compound 1	DMSO	Erythromycin
1.	H. influenzae	9.3 ± 0.28	-	9.6 ± 0.23
2.	P. aeruginosa	7.6 ± 0.28	-	11.0 ± 0.40
3.	S. aureus	7.6 ± 0.57	-	11.3 ± 0.23
4.	S. pneumoniae	8.0 ± 0.50	-	8.3 ± 0.23
5.	S. pyogenes	7.3 ± 0.28	-	13.3 ± 0.47

^azone of inhibition in millimeter (mm) in triplicate expressed as means and standard error of means (SEM); Disc diameter: 5 mm; Compound 1 concentration was 6 mg/disc