期刊
FLAVOUR AND FRAGRANCE JOURNAL
卷 27, 期 5, 页码 335-340出版社
WILEY
DOI: 10.1002/ffj.3102
关键词
Myrtus communis L; essential oil composition; 13?C NMR; C8-C10 esters
Myrtus communis L. grows wild all around the Mediterranean basin and on the islands. Myrtle leaf essential oil has a characteristic pleasant odour although various compositions, which differ by the content of monoterpene esters, have been reported. Fractionation of an essential oil sample from Corsica, followed by analysis of the chromatographic fractions by GC(RI) and 13?C NMR allowed the identification of four C8-C10 esters, first identified 20?years ago in a Spanish essential oil sample and since that time very scarcely reported, despite the tremendous amount of work carried out on the composition of myrtle leaf essential oil. Therefore, the composition of 63 samples of M. communis L. leaf essential oil isolated from myrtle growing wild in various Mediterranean countries (Corsica, Sardinia, Portugal, Morocco, Algeria and Tunisia) has been investigated by GC(RI) and 13?C NMR and the four C8-C10 esters have been identified in all the samples. The occurrence of these esters merits great attention, since they contribute to the pleasant odour of the myrtle essential oil. In parallel, 3,3,5,5,8,8-hexamethyl-7-oxabicyclo[4.3.0]non-1(6)-ene-2,4-dione has been identified in all the samples. Copyright (c) 2012 John Wiley & Sons, Ltd.
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