Table 1.

Common volatile compounds identified in C. sinensis, C. reticulata, C. paradisi, C. grandis, C. aurantium, C. limon, C. medica, C. aurantifolia, C. bergamia, and C. junos.

Groups of common compounds	Common compounds
Monoterpene hydrocarbons	β-Myrcene, (Z)-β-ocimene, (E)-β-ocimene, α-phellandrene, β-phellandrene, α-terpinene, γ-terpinene, limonene, terpinolene, sabinene, α-thujene, α-pinene, β-pinene, camphene, p-cymene
Monoterpenoid alcohols	linalool, (Z)-linalool oxide, β-citronellol, nerol, geraniol, terpinen-4-ol, α-terpineol, (Z)-sabinene hydrate
Monoterpenoid aldehydes	β-citronellal, neral, perillaldehyde
Other oxygenated monoterpenes	Citronellyl acetate, geranyl acetate, camphor, (Z)-limonene oxide, (E)-limonene oxide, carvone
Sesquiterpene hydrocarbons	(E,E)-α-farnesene, (E)-β-farnesene, β-elemene, δ-elemene, germacrene D, bicyclogermacrene, α-humulene, (E)-β-caryophyllene, δ-cadinene
Sesquiterpenoid alcohols	(E)-nerolidol
Other oxygenated sesquiterpenes	(E)-caryophyllene oxide
Non-terpenoid alcohols	1-octanol
Non-terpenoid aldehydes	Octanal, nonanal, decanal, undecanal, dodecanal