Chemical composition and antibacterial activity of essential oils of Eugenia species.
The essential oils of the leaves of Eugenia brasiliensis, Eugenia beaurepaireana, and Eugenia umbelliflora were analyzed by GC-MS. The major compounds found in the oil of E. brasiliensis were spathulenol (12.6%) and tau-cadinol (8.7%), of E. beaurepaireana were beta-caryophyllene (8.0%) and bicyclogermacrene (7.2%), and of E. umbelliflora were viridiflorol (17.7%) and beta-pinene (13.2%). These oils were assayed to determine their antibacterial activity against Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli. All of the oils analyzed showed antibacterial activity, ranging from moderate to strong, which was most accentuated for the E. umbelliflora and E. brasiliensis oils, which strongly inhibited the growth of S. aureus giving values of MIC = 119.2 and 156.2 microg/mL, respectively.
Magina
Michele D A
MD
Departamento de Ciências Farmacêuticas, Universidade Regional de Blumenau, Blumenau, SC, 89.010-971, Brazil.
Dalmarco
Eduardo M
EM
Wisniewski
Alberto
A
Simionatto
Edesio L
EL
Dalmarco
Juliana B
JB
Pizzolatti
Moacir G
MG
Brighente
Inês M C
IM
D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D004926:Escherichia coli / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology*; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects; D027842:Syzygium / Q000737:chemistry*
D000900:Anti-Bacterial Agents; D009822:Oils, Volatile