Enantiomeric distribution of key volatile components in Citrus essential oils

摘要: Citrus as many other plants present characteristic distribution of some enantiomers, thus it is often possible to use this parameter for identification, characterization, genuineness, and pharmacological activity assessment. In particular, reveal adulteration different nature, such addition synthetic compounds, or natural components botanical origin, with drastic changes in the biological olfactory properties. This study focused on evaluation enantiomeric excesses numerous samples species: C. deliciosa Ten., limon (L.) Burm., bergamia, aurantifolia (Christm.) Swing., latifolia Tan., sinensis Osbeck, aurantium L. The determined by direct esGC and, depending complexity essential oil, MDGC a chiral column second dimension. research determination fourteen which specific oils investigated. Particular attention given trend during productive season, so identify useful parameters quality assessment also consideration wide range variability reported literature. investigated were following: α-thujene, α-pinene, camphene, β-pinene, sabinene, α-phellandrene, β-phellandrene, limonene, linalool, camphor, citronellal, linalyl acetate, terpinen-4-ol, α-terpineol. allowed separation enantiomers camphor otherwise not separated conventional esGC; however α-pinene was preferable esGC. system determine α- β-phellandrene lime oil first time. results are discussed function seasonal variation when possible, extraction technology, particular regards oils.