Chemical Properties
See Boronia. The absolute, prepared by alcoholic extraction of concrete, contains the same constituents as the concrete
and exhibits a fresh, green, fruital, spicy odor reminiscent of cinnamon and tobacco.
Definition
Extractives and their physically modified derivatives. Boronia megastigma, Rutaceae.
Essential oil composition
Qualitatively, absolute contains hydrocarbons (α-pinene, β-pinene, camphene, myrcene, limonene,
ocimene, methyl naphthalene, pentadecane, heptadecane); alcohols (linalool, dodecanol); ketones (β-ionone, α-ionone, dihydro-β-
ionone, menthone, 5,6-epoxyionone); esters (dodecyl acetate, tetradecyl acetate, methyl decanoate, ethyl decanoate).
Aroma threshold values
Aroma characteristics at 1.0%: sweet, fresh and floral, aromatic green herbal and woody, berry and powdery
with an overall tutti-frutti like nuance.
Taste threshold values
Taste characteristics at 3 ppm: sweet, berry, fruity and green, woody, powdery with floral gardenia and
overripe fruity nuance.
