Gastric Antiulcerogenic and Hypokinetic Activities of Terminalia fagifolia Mart. & Zucc. (Combretaceae)

Table 1

Stoichiometry and reactivity of the DPPH free radical scavenging activity and total phenolic (TPC) and flavonoid (TFC) content for the Terminalia fagifolia ethanolic bark extract (TFEE) and the aqueous (TFAqF), hydroalcoholic (TFHAF), and hexanic (TFHEXF) partition fractions of TFEE, catechin, and butylated hydroxytoluene (BHT).

Sample	DPPH scavenging activity		TPC	TFC
	EC50 (𝜇g/mL)	ET50 (s)	mg GAE/g*	mg RE/g**
TFEE	50.0±3.9	4.5±0.6^a	452.3±18.1	218.6±2.0
TFAqF	33.9±3.1	8.0±1.9^a	400.5±9.1^b	217.5±1.6
TFHAF	31.6±2.0	4.7±1.4^a	404.1±12.9^b	222.0±1.9
TFHEXF	>>240^a	ND	76.6±1.3^b	21.4±0.5^b
Catechin	46.3±2.5	51.7±9.7	514.5±6.9^b	7.4±0.8^b
BHT	213.8±5.5^a	ND	356.6±9.3^b	0.0±0.0

The data represent M ± S.E.M. for a triplicate assay. 𝑃<0.01 compared to ^acatechin or to ^bTFEE (ANOVA and Tukey’s test). ND: not detectable. *mg gallic acid equivalent/g, **mg rutin equivalent/g.