In Vitro Biological Screening of Hartmannia rosea Extracts

Table 4

Antibacterial activity of different solvent extracts of H. rosea.

Plant extracts	Pseudomonas aeruginosa		Staphylococcus aureus
	Percentage inhibition at 100 µg/mL	MIC	Percentage inhibition at 100 µg/mL	MIC
n-Hexane (HR-1)	9.63	>100	8.67	>100
Ethyl acetate (HR-2)	10.68	>100	21.74	>100
Chloroform (HR-3)	47.21	100.0	39.67	>100
n-Butanol (HR-4)	17.68	>100	44.72	>100

Note. indicates significant results (). Chloroform and -butanol extracts exhibited significantly () higher antibacterial activity than that of standard, cefixime. In addition, -butanol fraction H. rosea extract showed the highest antibacterial activity among all extracts.