. 2020 Sep 15;9(9):292. doi: 10.3390/biology9090292

Table 1.

Antioxidant activity (DPPH•, FRAP, ABTS^•+) of hydroethanolic geopropolis extract produced by Melipona fasciculata Smith.

Sample	DPPH• IC₅₀ (μg/mL)	FRAP (mmol Fe²⁺/g)	ABTS⁺ IC₅₀ (μg/mL)
EHGV	76.16 ± 1.05 ^a	2.91 ± 0.12 ^a	13.28 ± 0.11 ^a
EHGP	265.91 ± 0.29 ^b	1.10 ± 0.25 ^b	58.94 ± 0.09 ^b
Trolox	3.01 ± 0.47	8.41 ± 0.28	3.69 ± 0.63

Values represent the mean of triplicate measurements ± standard deviation. Different letters in the same column indicate a significant difference (Tukey p < 0.05). EHGV—hydroethanolic geopropolis extract of M. fasciculata from Viana city, Maranhão State, Brazil; EHGP—hydroethanolic geopropolis extract of M. fasciculata from Pinheiro city, Maranhão State, Brazil; DPPH•: 2.2-diphenyl-1-picrylhydrazyl radical; FRAP: ferric reducing antioxidant power; ABTS•+: 2.2′-azinobis-3-ethylbenzotiazoline-6-sulfonic acid.