Varieties Of P.betleLeaves Concentration (μg/ml) % Of Inhibition ± SD, n=3  Regression Equation
A 10 6.4 ± 0.883 y=7.01x+(-3.73)
r²=0.870
50 9.1 ± 1.620
100 10.7 ± 0.679
250 28.6 ± 0.861
1000 31.7 ± 0.399
B 10 4.7 ± 0.204 y=4.6x+(-0.08)
r²=0.982
50 9.3 ± 0.571
100 13.9 ± 0.352
250 16.7 ± 0.183
1000 24.0 ± 0.667
C 10 1.2 ± 0.174 y=5.43x+(-4.23)
r²=0.976
50 5.2 ± 0.380
100 14.2 ± 0.620
250 17.5 ± 0.432
1000 22.2 ± 0.485
D 10 11.6 ± 0.338 y=10.91x+(-3.93)
r²=0.873
50 18.0 ± 0.545
100 22.9 ± 0.996
250 32.7 ± 0.797
1000 58.8 ± 2.900
E 10 10.7 ± 0.892 y=10.5x+(-6.8)
r²=0.643
50 15.8 ± 2.540
100 16.1 ± 0.108
250 19.6 ± 1.960
1000 61.3 ± 0.120
F 10 1.2 ± 0.484 y=13.19x+(-23.29)
r²=.615
50 1.6 ± 0.285
100 6.2 ± 0.470
250 8.9 ± 0.961
1000 63.5 ± 0.350
G 10 8.0 ± 0.136 y=12.99x+(-12.49)
r²=0.716
50 15.8 ± 0.529
100 15.5 ± 0.097
250 24.5 ± 0.338
1000 68.6 ± 0.097
H 10 11.6 ± 1.120 y=13.34x+(-14.84)
r²=0.519
50 11.6 ± 0.240
100 12.0 ± 0.272
250 13.2 ± 0.985
1000 77.5 ± 0.147
I 10 2.4 ± 0.400 y=10.79x+(-14.07)
r²=0.841
50 7.6 ± 0.253
100 9.9 ± 0.588
250 22.9 ± 0.588
1000 48.7 ± 0.596
Table 2: Prevention of lipid peroxidation by P.betle leaf.