has part has part has_part has role has role alpha-terpinene gamma-terpinene 1,8-cineole p-cymene antibacterial agent antifungal agent antiseptic drug 4-terpineol tea tree oil TTO An essential oil consisting of approximately one hundred hydrocarbon and terpenoid components obtained by steam distillation from the leaves and terminal branchlets of the tea tree, <em>Melaleuca alternifolia</em>; the yield of oil is typically 1-2% of wet plant material weight. The main components are 4-terpineol (40%), γ-terpinene (23%), α-terpinene (10%), 1,8-cineole (5%), terpinolene (3%), and <em>p</em>-cymene (3%). Melaleuca oil Melaleuca alternifolia oil chebi_ontology Melaleuca extract Melaleuca alternifolia extract extract from tea tree CHEBI:83629 extract from Melaleuca alternifolia tea tree extract essential oil terpinolene