Sample

% Inhibition

Noni juice

69.14 ± 9.27

Deacetylasperulosidic acid (500 µg/mL)

7.99 ± 0.95

Asperulosidic acid (500 µg/mL)

14.82 ± 2.15

Scandoside (500 µg/mL)

79.25 ± 1.70

Mixture of the iridoids (167 µg/mL each)*

55.48 ± 5.25