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On the Genuineness of Citrus Essential Oils. Part LII. Chemical Characterization of Essential Oil of three Cultivars of Citrus clementine Hort.

✍ Scribed by Antonella Verzera; Luigi Mondello; Alessandra Trozzi; Paola Dugo

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
174 KB
Volume
12
Category
Article
ISSN
0882-5734

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✦ Synopsis

The composition of Citrus clementine Hort. essential oil, laboratory-prepared from fruits of dierent cultivars, has been studied. The following cultivars were examined: Comune, Oroval and Monreal. The volatile fraction was analysed by HRGC and HRGC±MS (quadrupole); 69 components were identi®ed. The composition as single components and as classes of substances for each sample and the average composition for each cultivar are reported. The enantiomeric distribution of linalol was studied by HRGC with b-cyclodextrin columns. Polymethoxylated ¯avones, present in the non-volatile residue, were analysed by normal phase HPLC. Six components were identi®ed: tangeretin, 3,3 ',4',5,6,7,8-heptamethoxy¯avone, nobiletin, tetra-O-methylscutellarein, sinensetin and 3,3',4',5,6,7-hexamethoxy¯avone. Clementine oil composition was then compared with that of Italian sweet orange and mandarin oil.

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