Antioxidant and Synergistic Antidiabetic Activities of a Three-Plant Preparation Used in Cameroon Folk Medicine

Table 1

Information of plants used: antioxidant and antiradical properties.

Plant species/family/; (voucher specimen)	Vernacular names/area in Cameroon/place of collection and date	Part of plant used (extraction; yield in %)	⁢In vitro antiradical and antioxidant activities of the extract
			IC50 (μg/mL)		Antioxidant (at 50 μg/mL of extract)
			DPPH	OH	Reducing power; (700 nm)	Antioxidant potential; (mgEq/BHTg of extract)
S. africana DC; (Asteraceae); 33075/HNC	“Mba kouom” (Bamoun),; Foumban; November 2010	Leaves; 20.68	2.93	3.47	0.15	125
P.oleracea Linn.; (Portulacaceae); 17542/SRFcam	“Kepingoup, Koupugoup”   (Bamoun),; Foumban; November 2010	Leaves; 13.29	3.07	3.24	0.14	127.5
S. rhombifolia Linn.; Malvaceae; 25373/SRFcam	“Sesam, Cisen” (Bamoun),; Foumban; November 2010	Leaves; 13.36	2.79	3.21	0.17	132
Mixture (1 : 1 : 1)			2.97	5.62	0.12	135
Vitamin C			1.65	2.9	0.24	220

Plants were identified at the Cameroon National Herbarium (HNC).
The percentage of the aqueous extract.