Table 2.

Effects of ascending concentrations of different parts of A. capillus-veneris AE (mg/mL) and its bioactive phytoconstituent chlorogenic acid (μg/mL) on % reduction of enzymatic starch digestion in vitro. Results expressed as % decrease in control values are mean ± SEM (n = 3 independent determinations).

Plant AE (mg/mL)	0.1	0.5	1	1.25	2.5	5	10
Adiantum capillus-veneris	31.3 ± 2.0	49.0 ± 4.3a	51.3 ± 1.2a	51.0 ± 0.8a	60.2 ± 1.3a	63.3 ± 0.6a	64.0 ± 0.3a
Chlorogenic acid (μg/mL)		6.25	12.5	25	50	100	200
Chlorogenic acid		30.6 ± 0.9a	31.4 ± 1.9a	32.6 ± 1.3a	36.8 ± 1.4a	43.7 ± 1.4a	57.2 ± 0.9a

^ap < 0.001 compared to control (drug-free or plant-free) incubations as determined by ANOVA followed by Dunnett’s post-test.