. 2020 Oct 1;9(10):941. doi: 10.3390/antiox9100941

Table 2.

Antioxidant activity of the hydroethanolic extract and fractions of B. virgilioides as determined by reducing the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH^•).

Sample	EC₅₀(µg/mL)	PI (%) *	AAI **
EHE	29.50 ± 2.40 ^a	42.90	0.84
GallicAcid	1.05 ± 0.20 ^a	92.06	23.80

* Percentage of inhibition (PI) of free radical formation. ** Antioxidant activity index (AAI). EC₅₀ results are expressed as mean and standard deviation. The letter ^“a” when repeated indicate statistical difference between the groups (n = 3; ANOVA followed by Tukey’s test, p < 0.05). EHE = hydroethanolic extract.