Table 1.

Antibacterial activity of Piper betle L. extract in various concentrations against Staphylococcus aureus by agar well diffusion method

Piper betle L. concentrations (%)	Clear zone diameter (mm)				Mean ± SD	Shapiro-Wilk
	P1	P2	P3	P4
0.5	-	10	-	-	2.500 ± 5.000	0.001
1	14	11	10	12.5	11.875 ± 1.750	0.894*
1.5	16	12	11	13	13.000 ± 2.160	0.577*
2	18.5	13	14	18	15.875 ± 2.780	0.233*
2.5	19	15	16	20	17.500 ± 2.380	0.488*
3	21	19	18.5	23	20.375 ± 6.332	0.564*

^*significance at P>0.05.