Chemical Composition of the Essential Oils and the Odor of Thymus pulegioides L.Growing Wild in Vilnius

摘要

Thymus pulegioides L.ssp pulegioides samples were collected in 1995-1999 in Vilnius city according to their odors.Five chemotypes of the essential oils were identified:1) citral/geraniol chemotype ("lemon" odor):citral (neral + ge-ranial,18.4-30.2%),geraniol (14.4-23.2%),p-caryophyllene (9.4-13.1%) andnerol (5.5-12.1%)2) geraniolchemotype ("sweet" odor):geraniol (23.1-25.5%),P-caryophyllene (10.8-13.5%) and P-bisabolene (9.5-10.2%)3) caryophyllene chemotype ("spicy" odor):P-caryophyllene (18.0-19.7%),P-bisabolene (14.5-15.9%),germacrene D (12.5-14.6%) and (E)-nerolidol (8.2-13.8%)4) y-terpinene/p-cymene chemotype ("hydrocarbon" odor):y-terpinene (15.5-17.2%),p-cymene (7.7-17.0%),carvacrol (4.6-13.5%) and P-caryophyllene (9.6-10.5%)5) carvacrol chemotype ("phenolic" odor):carvacrol (24.4-33.3%),p-caryophyllene (9.5-14.9%) and P-bisabolene (10.5-12.9%).The caryophyllene and Y-terpinene/p-cymene chemotypes were not observed earlier in Thymus pulegioides L.