Table 7.

In-vitro comparison of IC₅₀ and % α-amylase inhibition for anti-diabetic activity in Leeamacrophylla leaf extracts with quercetin standard.

Fractions	Conc. (μg/mL)	% of α-amylase inhibitory			Inhibition of α-amylase (%) (Mean ± STD)	IC50 (μg/mL)
		a	b	c
LM1	10	13.53	13.55	13.50	13.53 ± 0.02	57.36
	20	25.40	25.42	25.44	25.42 ± 0.02
	40	49.44	49.48	49.44	49.45 ± 0.02
	80	81.11	81.17	81.15	81.14 ± 0.03
	160	92.55	92.51	92.50	92.52 ± 0.03
LM2	10	6.01	6.06	6.11	6.06 ± 0.05	100.66
	20	13.88	13.60	13.66	13.71 ± 0.15
	40	19.50	19.58	19.57	19.55 ± 0.02
	80	40.33	40.36	40.35	40.35 ± 0.02
	160	78.36	78.35	78.40	78.37 ± 0.03
LM3	10	7.14	7.14	7.17	7.15 ± 0.02	164.92
	20	12.65	12.66	12.66	12.66 ± 0.01
	40	20.07	20.14	20.12	20.11 ± 0.04
	80	40.55	40.58	40.52	40.55 ± 0.03
	160	43.48	43.47	43.55	43.50 ± 0.04
Quercetin (standard)	10	7.55	7.55	7.54	7.55 ± 0.01	97.45
	20	11.11	11.10	11.10	11.10 ± 0.01
	40	21.98	22.00	21.98	21.99 ± 0.01
	80	41.88	41.87	41.87	41.87 ± 0.01
	160	80.64	80.69	80.66	80.66 ± 0.03