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

Table 17

Antibacterial activity of essential oils and flower extracts from B. pilosa [53].

Strain	Mean zone of inhibition (mm)
	Leaf essential oil	Flower essential oil	Leaf extract	Flower extract
Micrococcus flavus	12.7 ± 0.3	8.7 ± 0.3	10.2 ± 0.2	10.8 ± 0.3
Bacillus subtilis	17.3 ± 1.9	11.7 ± 0.2	10.9 ± 0.2	10.3 ± 0.2
Bacillus cereus	19.0 ± 1.4	11.2 ± 0.3	11.8 ± 0.4	18.5 ± 1.0
Bacillus pumilus	12.3 ± 0.7	10.8 ± 0.2	10.5 ± 0.4	7.7 ± 0.2
Escherichia coli	13.7 ± 0.4	20.3 ± 0.7	10.2 ± 1.1	14.0 ± 1.3
Pseudomonas ovalis	12.5 ± 0.8	13.7 ± 1.5	10.2 ± 0.6	12.5 ± 0.6