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

Table 1

IC50 values for DPPH scavenging activity of Pb.ext and Ps.ext extracted in 3 h at different temperatures.

IC50 for DPPH scavenging activity (%)
Extract temp.	30°C	40°C	50°C	60°C	70°C
Pb.ext	2.30	2.08	1.45	1.46	1.83
Ps.ext	2.85	2.53	2.49	2.00	2.10

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