1,4-Cineole has a light and mild camphoraceous odor and a cool, mildly spice-like flavor.
Reported present in Piper cubeba, lime peel oil, apricot, cardamom (Eleteria cardamomun Maton), orange
juice, grapefruit juice, laurel (Laurus nobilis L), rosemary and mastic gum leaf oil. It is also present in various essential oils; Boldea
fragrans Juss., Xanthoxylum rhetsa D.C. and Ormenis multicaulis.
Apart from the academic interest related to the olfactory similarity or dissimilarity) of isomer chemicals, there is not much interest in this chemical. It is not nearly as readily available as its isomer, Eucalyptol.
ChEBI: 1,4-cineole is an oxabicycloalkane consisting of p-menthane with an epoxy bridge across positions 1 and 4. It has a role as a plant metabolite, a fumigant insecticide and a central nervous system depressant. It is a cineole and an oxabicycloalkane.
Taste characteristics at 40 ppm: cooling, minty, menthol-like, green and herbal, with a terpy and camphoraceous
nuance.
1,4-Cineole is present in eucalyptus oil. It activated both human TRPA1 (a sensor of noxious cold) and human TRPM 8 (a thermosensitive receptor). It is a natural monoterpene that inhibits plant growth.
Its structure has been confirmed through synthesis.*
