Table 2.

Inhibition of diaphorase activity of PfFNR.

Alkaloids∗	dA/dt∗∗	% Inhibition
Control	0.139	-
Croomine	0.138	0.7
Epi-croomine	0.122	12.2
Tuberstemonine	0.062	55.4
Isoprotostemonine	0.17	-22.3
Javastemonine A	0.144	-3.6

∗Each of alkaloids is 100 ppm; ∗∗dA/dt is the rate of absorbance change.