Table 1: DPPH radical scavenging activity of JSE.

JSE/TPC (μg/ml) Percent inhibition Linear regression equation
(correlation coefficient)
IC50 (μg/ml)
0.082 16.5±0.7 - -
0.164 32.5±0.9 - -
0.246 64±1 y = 205.63x + 1.4189
(R2 = 0.9645)
0.24
0.328 66±1 - -
0.41 81.6±0.8 - -