Comparative Study of the Silver Nanoparticle Synthesis Ability and Antibacterial Activity of the Piper Betle L. and Piper Sarmentosum Roxb. Extracts

Table 2

IC50 values for DPPH scavenging activity of Pb.ext and Ps.ext extracted at 50°C and 60°C, respectively, at different times.

IC50 for DPPH scavenging activity (%)
Extract time	1 h	2 h	3 h	4 h	5 h
Pb.ext	2.01	1.47	1.45	1.83	1.83
Ps.ext	2.49	2.48	2.49	2.70	2.82

IC50 value was calculated as the percentage concentration of the initial extract.