In the present study, an extensive in vitro antimicrobial profiling was performed for three medicinal plants grown in Cuba, namely
Simarouba glauca
,
Melaleuca leucadendron
and
Artemisia absinthium
. Ethanol extracts were tested for their antiprotozoal potential against
Trypanosoma b. brucei,
Trypanosoma cruzi
,
Leishmania infantum
and
Plasmodium falciparum
. Antifungal activities were evaluated against
Microsporum canis
and
Candida albicans
whereas
Escherichia coli
and
Staphylococcus aureus
were used as test organisms for antibacterial activity. Cytotoxicity was assessed against human MRC-5 cells. Only
M. leucadendron extract showed selective activity against microorganisms tested. Although
S. glauca exhibited strong activity against all protozoa, it must be considered non-specific. The value of integrated evaluation of extracts with particular reference to selectivity is discussed.