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Chemical Composition and Antimicrobial Activity of the Essential Oils from Two Species of Thymus Growing Wild in Southern Italy

2009; Multidisciplinary Digital Publishing Institute; Volume: 14; Issue: 11 Linguagem: Inglês

10.3390/molecules14114614

1433-1373

Laura De Martino, Maurizio Bruno, Carmen Formisano, Vincenzo De Feo, Francesco Napolitano, Sergio Rosselli, Felice Senatore,

Plant chemical constituents analysis

The volatile constituents of the aerial parts of two samples of Thymus longicaulis C. Presl, collected in Campania and in Sicily, and two samples of Thymus pulegioides L. from the same regions, were extracted by hydrodistillation and analyzed. Considering the four oils together, seventy-eight different compounds were identified: 57 for Thymus longicaulis from Sicily (91.1% of the total oil), 40 for Thymus longicaulis from Campania (91.5% of the oil), 39 for Thymus pulegioides from Sicily (92.5% of the oil) and 29 for Thymus pulegioides from Campania (90.1% of the oil). The composition of the oils is different, although the most abundant components are identical in T. pulegioides. The essential oils showed antibacterial activity against eight selected microorganisms.