The composition of oil samples isolated from needles of Pinus halepensis growing in three locatio... more The composition of oil samples isolated from needles of Pinus halepensis growing in three locations in Corsica (Saleccia, Capo di Feno, and Tre Padule) has been investigated by combination of chromatographic (GC with retention indices) and spectroscopic (MS and (13) C-NMR) techniques. In total, 35 compounds that accounted for 77 - 100% of the whole composition have been identified. α-Pinene, myrcene, and (E)-β-caryophyllene were the major component followed by α-humulene and 2-phenylethyl isovalerate. Various diterpenes have been identified as minor components. 47 Oil samples isolated from pine needles have been analyzed and were differentiated in two groups. Oil samples of the first group (15 samples) contained myrcene (M = 28.1 g/100 g; SD = 10.6) and (E)-β-caryophyllene (M = 19.0 g/100 g; SD = 2.2) as major components and diterpenes were absent. All these oil samples were isolated from pine needles harvested in Saleccia. Oil samples of the second group (32 samples) contained mostly (E)-β-caryophyllene (M = 28.7 g/100 g; SD = 7.9), α-pinene (M = 12.3 g/100 g; SD = 3.6), and myrcene (M = 11.7 g/100 g; SD = 7.3). All these oil samples were isolated from pine needles harvested in Capo di Feno and Tre Padule.
Thymus ciliatus ssp. eu-ciliatus harvested in western Algeria produces an essential oil whose com... more Thymus ciliatus ssp. eu-ciliatus harvested in western Algeria produces an essential oil whose composition is dominated by carvacrol (72.4–80.3%). The oil displayed antimicrobial activity.
ABSTRACT The essential oil of aerial parts of Warionia saharae was obtained by hydrodistillation ... more ABSTRACT The essential oil of aerial parts of Warionia saharae was obtained by hydrodistillation and analyzed by gas chromatography/flame ionization detector (GC/FID), GC/mass spectrometry (GC/MS) and 13C nuclear magnetic resonance (NMR). In total, forty-three constituents, mainly oxygenated mono- and sesquiterpenes, were identified representing 89.2% of the total oil. Sixteen samples of essential oil of W. saharae collected in three locations exhibited similar chemical compositions showing a chemical homogeneity. The essential oil showed poor antifungal activity against filamentous fungi, Alternaria alternata, Cladosporium herbarum, Fusarium oxysporum and Aspergillus flavus with minimum inhibitory concentration (MIC) values between 4 and 8 μL/mL.
The distinctiveness of Rosmarinus officinalis L from Corsica and Sardinia is known since a long t... more The distinctiveness of Rosmarinus officinalis L from Corsica and Sardinia is known since a long time and the essential oil (EO) isolated from flowering tops is known as “Rosemary EO, verbenone chemotype”. Verbenone is accompanied by ∝-pinene and bornyl acetate. The aim of this review is to compile the various compositions reported in the literature, all of these containing the three representative components but in concentrations which substantially varied from sample to sample (collective oil samples from industrial sources or laboratory made individual samples). Finally, oil samples containing verbenone and/or bornyl acetate, isolated from plants growing in other countries than Corsica and Sardinia are briefly reported.
The composition of oil samples isolated from needles of Pinus halepensis growing in three locatio... more The composition of oil samples isolated from needles of Pinus halepensis growing in three locations in Corsica (Saleccia, Capo di Feno, and Tre Padule) has been investigated by combination of chromatographic (GC with retention indices) and spectroscopic (MS and (13) C-NMR) techniques. In total, 35 compounds that accounted for 77 - 100% of the whole composition have been identified. α-Pinene, myrcene, and (E)-β-caryophyllene were the major component followed by α-humulene and 2-phenylethyl isovalerate. Various diterpenes have been identified as minor components. 47 Oil samples isolated from pine needles have been analyzed and were differentiated in two groups. Oil samples of the first group (15 samples) contained myrcene (M = 28.1 g/100 g; SD = 10.6) and (E)-β-caryophyllene (M = 19.0 g/100 g; SD = 2.2) as major components and diterpenes were absent. All these oil samples were isolated from pine needles harvested in Saleccia. Oil samples of the second group (32 samples) contained mostly (E)-β-caryophyllene (M = 28.7 g/100 g; SD = 7.9), α-pinene (M = 12.3 g/100 g; SD = 3.6), and myrcene (M = 11.7 g/100 g; SD = 7.3). All these oil samples were isolated from pine needles harvested in Capo di Feno and Tre Padule.
Thymus ciliatus ssp. eu-ciliatus harvested in western Algeria produces an essential oil whose com... more Thymus ciliatus ssp. eu-ciliatus harvested in western Algeria produces an essential oil whose composition is dominated by carvacrol (72.4–80.3%). The oil displayed antimicrobial activity.
ABSTRACT The essential oil of aerial parts of Warionia saharae was obtained by hydrodistillation ... more ABSTRACT The essential oil of aerial parts of Warionia saharae was obtained by hydrodistillation and analyzed by gas chromatography/flame ionization detector (GC/FID), GC/mass spectrometry (GC/MS) and 13C nuclear magnetic resonance (NMR). In total, forty-three constituents, mainly oxygenated mono- and sesquiterpenes, were identified representing 89.2% of the total oil. Sixteen samples of essential oil of W. saharae collected in three locations exhibited similar chemical compositions showing a chemical homogeneity. The essential oil showed poor antifungal activity against filamentous fungi, Alternaria alternata, Cladosporium herbarum, Fusarium oxysporum and Aspergillus flavus with minimum inhibitory concentration (MIC) values between 4 and 8 μL/mL.
The distinctiveness of Rosmarinus officinalis L from Corsica and Sardinia is known since a long t... more The distinctiveness of Rosmarinus officinalis L from Corsica and Sardinia is known since a long time and the essential oil (EO) isolated from flowering tops is known as “Rosemary EO, verbenone chemotype”. Verbenone is accompanied by ∝-pinene and bornyl acetate. The aim of this review is to compile the various compositions reported in the literature, all of these containing the three representative components but in concentrations which substantially varied from sample to sample (collective oil samples from industrial sources or laboratory made individual samples). Finally, oil samples containing verbenone and/or bornyl acetate, isolated from plants growing in other countries than Corsica and Sardinia are briefly reported.
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