Concentration (v/v) %

PIRG %

50

100 ± 0.0^a

25

100 ± 0.0^a

12.5

100 ± 0.0^a

6.25

48.46 ± 0.40^b

3.125

26.16 ± 0.20^c

1.562

18.43 ± 0.1^d

control

0^e