Bidens pilosa L. (Asteraceae): Botanical Properties, Traditional Uses, Phytochemistry, and Pharmacology

Table 14

Radical scavenging activities of B. pilosa extracts [47].

Extracts/control	DPPH assay,; IC50 (μg/mL)	NBT/hypoxanthine; superoxide assay,; IC50 (μg/mL)
Quercetin	1.98	1.5
Ascorbic acid	6.34	Not determined
α-tocopherol	8.97	Not determined
Ethyl acetate extract	13.83	59.7
Butanol extract	16.69	11.4
Water extract	>100	>100