[01] Hussein A. H. Said-Al Ahl, Medicinal and Aromatic Plants Research Department, National Research Centre, Dokki, Giza, Egypt. [02] Ahmed S. H. Gendy, HorticultureDepartment, Faculty of Agriculture, Zagazig University, Zagazig, Egypt. [03] Abeer A. Mahmoud, Botany Department (Plant Physiology Section), Faculty of Agriculture, Cairo University, Cairo, Egypt. [04] Hanaa F. Y. Mohamed, Botany Department (Plant Physiology Section), Faculty of Agriculture, Cairo University, Cairo, Egypt.

The essential oil of the aerial parts of Marrubium vulgare L. (Lamiaceae) obtained by hydro distillation was analyzed by GC/MS in order to determine their chemical composition. Thirty-two components in the oil of M. vulgare were identified. The GC/MS revealed the presence of carvacrol (36.28%), β-phellandrene (15.49%), carvyl acetate (11.52%) which represents the main compounds of volatile oil extracted from Marrubium vulgare fresh herb. Other important compounds as trans-caryophyllene (4.06%), linalool (3.86%), α-terpinene (3.83%),β-pinene (3.53%), trans-sabinene hydrate (3.29%), β-thujone (2.93%), 1-octen-3-ol (2.48%), 1,8-cineol (1.49%), α-Pinene (1.44%) and borneol (1.12%) were reported in Marrubium vulgare essential oil cultivated in Egypt.

Marrubium Vulgare, Essential Oil, Carvacrol, β-Phellandrene, Carvyl Acetate

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