Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in Cyprus
The genus <i>Eucalyptus</i> L’Hér., is native to Australia with 61 introduced taxa in Cyprus, including <i>E. torquata</i> Luehm., which has a wide distribution on the island. The aim of this study was to investigate the possible seasonal variations in the chemical compositio...
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2025-01-01
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| author | Mustapha Bulama Modu Duygu Yiğit Hanoğlu Azmi Hanoğlu Fehmi Burak Alkaş K. Hüsnü Can Başer Dudu Özkum Yavuz |
| author_facet | Mustapha Bulama Modu Duygu Yiğit Hanoğlu Azmi Hanoğlu Fehmi Burak Alkaş K. Hüsnü Can Başer Dudu Özkum Yavuz |
| author_sort | Mustapha Bulama Modu |
| collection | DOAJ |
| description | The genus <i>Eucalyptus</i> L’Hér., is native to Australia with 61 introduced taxa in Cyprus, including <i>E. torquata</i> Luehm., which has a wide distribution on the island. The aim of this study was to investigate the possible seasonal variations in the chemical composition of the essential oils of juvenile and mature leaves collected from Nicosia, Cyprus, by using multivariate statistical analysis. The leaves of 12 monthly collections were separately hydrodistilled, and GC-FID and GC/MS analyses were conducted. In general, the results revealed 1,8-cineole (mature: 3.6–27.8%; juvenile: 12.7–21.5%) and torquatone (mature: 27.6–48.8%; juvenile: 28.8–41.5%) as major compounds as well as an inverse relation between 1,8-cineole and torquatone content. Other important compounds found were α-pinene, β-eudesmol and α-eudesmol for all samples. The data support the existence of three major clusters, distinguished by the concentration of torquatone and miniatone. Minor compounds were also temporally relevant. The present study is among the first of its kind, analyzing the essential oils for a one-year period in Cyprus as well as conducting statistical analysis on <i>E. torquata</i> to reveal possible temporal variations between heterophyllous leaves, and also performing Hierarchical Cluster Analysis, determining the primary components of variability. |
| format | Article |
| id | doaj-art-407e37cb011b42eb9f326c81bb4ad468 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-407e37cb011b42eb9f326c81bb4ad4682025-01-24T13:43:38ZengMDPI AGMolecules1420-30492025-01-0130233210.3390/molecules30020332Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in CyprusMustapha Bulama Modu0Duygu Yiğit Hanoğlu1Azmi Hanoğlu2Fehmi Burak Alkaş3K. Hüsnü Can Başer4Dudu Özkum Yavuz5Department of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, 99010 Nicosia, CyprusDepartment of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, 99010 Nicosia, CyprusDepartment of Pharmacognosy, Faculty of Pharmacy, Near East University, 99010 Nicosia, CyprusDepartment of Toxicology, Faculty of Pharmacy, Near East University, 99010 Nicosia, CyprusDepartment of Pharmacognosy, Faculty of Pharmacy, Near East University, 99010 Nicosia, CyprusDepartment of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, 99010 Nicosia, CyprusThe genus <i>Eucalyptus</i> L’Hér., is native to Australia with 61 introduced taxa in Cyprus, including <i>E. torquata</i> Luehm., which has a wide distribution on the island. The aim of this study was to investigate the possible seasonal variations in the chemical composition of the essential oils of juvenile and mature leaves collected from Nicosia, Cyprus, by using multivariate statistical analysis. The leaves of 12 monthly collections were separately hydrodistilled, and GC-FID and GC/MS analyses were conducted. In general, the results revealed 1,8-cineole (mature: 3.6–27.8%; juvenile: 12.7–21.5%) and torquatone (mature: 27.6–48.8%; juvenile: 28.8–41.5%) as major compounds as well as an inverse relation between 1,8-cineole and torquatone content. Other important compounds found were α-pinene, β-eudesmol and α-eudesmol for all samples. The data support the existence of three major clusters, distinguished by the concentration of torquatone and miniatone. Minor compounds were also temporally relevant. The present study is among the first of its kind, analyzing the essential oils for a one-year period in Cyprus as well as conducting statistical analysis on <i>E. torquata</i> to reveal possible temporal variations between heterophyllous leaves, and also performing Hierarchical Cluster Analysis, determining the primary components of variability.https://www.mdpi.com/1420-3049/30/2/332<i>Eucalyptus torquata</i>Cyprusessential oilprincipal component analysisPCAhierarchical cluster analysis |
| spellingShingle | Mustapha Bulama Modu Duygu Yiğit Hanoğlu Azmi Hanoğlu Fehmi Burak Alkaş K. Hüsnü Can Başer Dudu Özkum Yavuz Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in Cyprus Molecules <i>Eucalyptus torquata</i> Cyprus essential oil principal component analysis PCA hierarchical cluster analysis |
| title | Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in Cyprus |
| title_full | Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in Cyprus |
| title_fullStr | Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in Cyprus |
| title_full_unstemmed | Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in Cyprus |
| title_short | Multivariate Statistical Analyses of the Temporal Variation in the Chemical Composition of the Essential Oil of <i>Eucalyptus torquata</i> in Cyprus |
| title_sort | multivariate statistical analyses of the temporal variation in the chemical composition of the essential oil of i eucalyptus torquata i in cyprus |
| topic | <i>Eucalyptus torquata</i> Cyprus essential oil principal component analysis PCA hierarchical cluster analysis |
| url | https://www.mdpi.com/1420-3049/30/2/332 |
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