The volatile oil of <i>Ziziphora hispanica</i> L.

Abstract

Abstract Analysis of the steam‐volatile leaf and flower oil of Ziziphora hispanica L. by gas‐chromatography (GC) confirmed that pulegone and piperitenone are the main monoterpenes. Lesser amounts of limonene, 1,8‐cineole, isopulegol, trans ‐isopiperitenol and thymol are present. δ‐Cadinene is the main sesquiterpene together with caryophyllene oxide and cis ‐nerolidol. The pulegone content of the oil tended to increase before flowering and decrease once flowering had commenced.