Chemical Variability of Ivoirian Xylopia rubescens Leaf Oil

Forty‐two essential oil samples were isolated from leaves of Xylopia rubescens harvested in three forests of Southern Ivory Coast. All the samples have been submitted to GC‐FID and the retention indices (RIs) of individual components have been measured on two capillary columns of different polarity....

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Bibliographic Details
Published in:Chemistry & biodiversity 2017-02, Vol.14 (2), p.np-n/a
Main Authors: Yapi, Thierry Acafou, Boti, Jean Brice, Tonzibo, Zanahi Félix, Ahibo, Coffy Antoine, Bighelli, Ange, Casanova, Joseph, Tomi, Félix
Format: Article
Language:English
Subjects:
(8Z,11Z,14Z)‐Heptadeca‐8,11,14‐trien‐2‐one
Biodiversity and Ecology
Chemical Sciences
Chemical variability
Cote d'Ivoire
Environmental Sciences
Furanoguaia‐1,4‐diene
Gas Chromatography-Mass Spectrometry
Leaf essential oil
Magnetic Resonance Spectroscopy
Oils, Volatile - chemistry
Plant Leaves - chemistry
Plant Oils - chemistry
Principal Component Analysis
Xylopia - chemistry
Xylopia rubescens
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Summary:Forty‐two essential oil samples were isolated from leaves of Xylopia rubescens harvested in three forests of Southern Ivory Coast. All the samples have been submitted to GC‐FID and the retention indices (RIs) of individual components have been measured on two capillary columns of different polarity. In addition, 20 oil samples, selected on the basis of their chromatographic profile, were also analyzed by 13C‐NMR and 24 components (78.0 – 92.4% of the whole compositions) have been identified. The content of the main components varied drastically from sample to sample: furanoguaia‐1,4‐diene (5.7 – 54.1%), furanoguaia‐1,3‐diene (1.1 – 10.5%), (8Z,11Z,14Z)‐heptadeca‐8,11,14‐trien‐2‐one (4.3 – 16.0%), and (E)‐β‐caryophyllene (1.7 – 17.3%). Hierarchical cluster and principal components analysis of the 42 oil compositions allowed the distinction of two well‐differentiated groups of unequal importance within the oil samples. Oil samples of the main group (Group II) contained mainly furanoguaia‐1,4‐diene (mean [M] = 43.1%; standard deviation [SD] = 3.2%) while furanoguaia‐1,3‐diene (M = 8.4%; SD = 0.9%) and (8Z,11Z,14Z)‐heptadeca‐8,11,14‐trien‐2‐one (M = 7.1%; SD = 1.5%) were present at appreciable contents. The composition of Group I was dominated by furanoguaia‐1,4‐diene (M = 17.0%; SD = 8.5%), (8Z,11Z,14Z)‐heptadeca‐8,11,14‐trien‐2‐one (M = 10.2%; SD = 2.4%) and (E)‐β‐caryophyllene (M = 9.5%; SD = 5.3%).
ISSN:1612-1872
1612-1880
DOI:10.1002/cbdv.201600200