Multimodal α-Glucosidase and α-Amylase Inhibition and Antioxidant Effect of the Aqueous and Methanol Extracts from the Trunk Bark of Ceiba pentandra

Table 1

Summary of the antioxidant and carbohydrate digestive enzyme inhibitory effects of C. pentandra extracts.

	Antioxidant activities								Carbohydrate digestive enzymes
	Superoxide anion		Hydrogen peroxide		AAPH protein		H2O2 protein		α-Amylase		α-Glucosidase
Methanol extract	51.81	1.3	44.84	1.5	39.26	1.09	120.6	0.44	6.15	14.93	76.61	1.14
Aqueous extract	34.26	1.26	1.78	12.07	97.95	0.28	140.4	0.04	54.52	1.62	86.49	0.78
Gallic acid	55.66	1.43			90.17	0.64	29.9	1.74
Ascorbic acid			13.84	4.77
Acarbose									20.97	4.03	8.49	11.76
	2.77		6.13		33.65		74.23		64.54		270.40
	0.0384		0.0058		<0.0001		<0.0001		<0.0001		<0.0001

: concentration of the tested substance able to inhibit 50% of the activity; EI: efficiency index, calculated as maximal activity/. The statistical analysis was performed with nonlinear regression and the best fit parameters ( and top) were compared.