| Autor: |
Hassanein, Heba D., Nazif, Naglaa M., Shahat, Abdelaaty A., Hammouda, Faiza M., Aboutable, El-Sayed A., Saleh, Mahmoud A. |
| Zdroj: |
Journal of Essential Oil Bearing Plants; March 2014, Vol. 17 Issue: 2 p251-264, 14p |
| Abstrakt: |
AbstractGas chromatography mass spectrometry was used to analyze the essential oil of three common Cyperusspecies grown in Egypt. The essential oils were obtained from the tubers and aerial parts of the plants using either hydrodistillation or head space analysis. The results revealed similarity between the tubers and aerial parts contents among the same species but showed variations between different species. Both C. articulatusand C. esculentuswere much higher in their contents of sesquiterpenes relative to monoterpens, compared to C. papyrus. Major chemical constituents were identified to be pinene, eucalyptol, myrtenol, copaene, cyperene, caryophyllene, patchoulene and caryophyllene oxide. Essential oils of tubers and stems (aerial parts) from C. articulatuswere characterized by much larger amount of sesquiterpenes (73 % and 71 % respectively) than monoterpenes (27 % and 24 % respectively), while the C. esculantusessential oil showed similar percentage of sesquiterpenes (74 % and 71 % for tubers and stem respectively) but had much lower percentage of monoterpenes (8 % and 12 % for tubers and stems respectively. C. esculantusessential oil also was characterized by higher contents of none terpenoid compounds (18 % and 17 % for tubers and stems respectively. On the other hand essential oil of C. papyruswas rich in monoterpens (67 % and 61 % for tubers and stems respectively) and only 33 % and 39 % sesquiterpenes in tubers and stems respectively, it also showed the absence of none terpenoid compounds. |
| Databáze: |
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