期刊论文详细信息
Journal of the Brazilian Chemical Society
Identification of impact aroma compounds in Eugenia uniflora L. (Brazilian Pitanga) leaf essential oil
Rosineia M. Melo1  Vivian F. S. Corrêa1  Ana Carolina L. Amorim1  Ana Luisa P. Miranda1  Claudia M. Rezende1 
[1] ,Universidade Federal do Rio de Janeiro Instituto de Química Rio de Janeiro RJ ,Brazil
关键词: Eugenia uniflora L.;    Myrtaceae;    gas chromatography olfatometry-mass spectrometry;    sesquiterpenes;    AEDA;   
DOI  :  10.1590/S0103-50532007000100020
来源: SciELO
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【 摘 要 】

The leaf essential oil of Eugenia uniflora L. (Myrtaceae) was extracted by Clevenger apparatus and analysed by gas chromatography-mass spectrometry (GC-MS). The leaves were collected and immediately extracted for five consecutive days at 9:00 am and 2:00 pm. No variance in the oil yields were observed in the period. Furanodiene and its rearrangement product, furanoelemene (or curzerene, 50.2%), beta-elemene (5.9%) and alpha-cadinol (4.7%) were identified as the most abundant compounds. GC-Olfatometry (GC-O) associated to Aroma Extract Dilution Analysis (AEDA) allowed the identification of nine active aroma compounds, where furanodiene (along with furanoelemene, FD 1024), beta-elemene (FD 256) and (E,E)-germacrone (FD 256) were characterized as the main impact aroma compounds in the odor of this essential oil. Those substances were collected through a sniffing port adapted on the GC allowing to obtain a typical essence of pitanga as indicated by comparative olfatometric analysis.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License

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