Qualitative and quantitative analysis of volatile components of <i>Teucrium massiliense</i> L. – identification of 6‐methyl‐3‐heptyl acetate as a new natural product

Djabou, Nassim; Paolini, Julien; Desjobert, Jean‐Marie; Allali, Hocine; Baldovini, Nicolas; Costa, Jean; Muselli, Alain

doi:10.1002/ffj.2008

Cited by 16 publications

(8 citation statements)

References 25 publications

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“…With these RFs, the components of the essential oil can be quantified through the following equation:

C_{VOC} = \{[(A_{abs, VOC} / A_{abs, IS}) \times C_{IS} \times RF] / W_{oil}\} \times 100

where C VOC is the concentration expressed as g/100 g of essential oil of the target volatile compound, A abs,VOC is its absolute peak area, W oil is the weight of the oil expressed in grams, and the other terms are as stated above. This approach was successfully applied to the quantification of Calendula arvensis and Teucrium massiliense essential oil components. For the study of seasonal variations, the concentrations of each compound were expressed in mg/100 g of dried plant through the following equation:

C_{VOCmg / 100 g dried plant} = [(C_{VOCg / 100 gEO} \times {yield}_{(w / dw)}) / 100]

where C VOCmg/100g dried plant is the concentration of the target volatile expressed in mg/100 g of dried plant, C VOCg/100gEO is the concentration of the target volatile expressed in g/100 g of essential oil, yield (w/dw) is the yield oil expressed in % from the weight of dried plant material.…”

Section: Methodssupporting

confidence: 65%

Essential oil composition and chemical variability of Xanthium italicum Moretti from Corsica

Andreani

Barboni

Desjobert

et al. 2012

Flavour & Fragrance J

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The chemical composition of Xanthium italicum Moretti essential oil was established for the first time using gas chromatography and gas chromatography–mass spectrometry. One hundred and seven compounds were identified and accounted for 98.7% of the total amount. The main compounds were limonene (35.3%), borneol (5.6%), sabinene (5.8%), germacrene‐D (2.5%), α‐bisabolol (2.4%) and α‐humulene (2.1%). Twenty‐five oil samples were investigated, and their chemical variability was analysed statistically. Two main groups of essential oils were identified in concordance with the morphological characteristics: hydrocarbon‐rich oils, which correlated with 100–120 cm plant height and oxygenated‐rich oils, which correlated with 5–20 cm plant height. The chemical composition of the oils obtained from separated organs and the concentrations of the main compounds throughout the vegetative cycle of the plant were studied. Stem and leaf oils were characterized by the occurrence of limonene (47.9% g and 22.9%, respectively) and germacrene‐D (4.6% and 15.8%, respectively). Flower oils displayed δ‐selinene and germacrene‐D as the main components (22.4% and 17.0%, respectively). X. italicum fruits yielded oil with a high amount of oxygenated compounds (72.9%), particularly sesquiterpene compounds (61.5%) such as α‐bisabolol (43.0%), α‐cadinol (5.0%) and (E,E)‐α‐farnesol (4.3%). The amount of hydrocarbon compounds remained stable throughout the vegetative cycle, whereas the amounts of oxygenated compounds increased during fructification. Copyright © 2012 John Wiley & Sons, Ltd.

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“…With these RFs, the components of the essential oil can be quantified through the following equation:

C_{VOC} = \{[(A_{abs, VOC} / A_{abs, IS}) \times C_{IS} \times RF] / W_{oil}\} \times 100

C_{VOCmg / 100 g dried plant} = [(C_{VOCg / 100 gEO} \times {yield}_{(w / dw)}) / 100]

Section: Methodssupporting

confidence: 65%

Essential oil composition and chemical variability of Xanthium italicum Moretti from Corsica

Andreani

Barboni

Desjobert

et al. 2012

Flavour & Fragrance J

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“…Regarding Teucrium massiliense , our results confirmed a very high variability. The main compounds detected in the EO, according to previous reports [ 5 , 49 ] were 6-methyl-3-heptyl acetate (23.55%), followed by γ-muurolene (10.97%), (E)-β-farnesene (8.44%), ar-curcumene (7.56%), 3-octenyl acetate (7.33%), α-zingibergene (6.37%), and (Z)-α-bisabolene (5.85%). Djabou et al [ 49 ] reported the 6-methyl-3-heptyl acetate for the first time as a natural compound in Corsican and Sardinian oil obtained from T. massiliense .…”

Section: Resultsmentioning

confidence: 99%

Characterization of Essential Oils from Different Taxa Belonging to the Genus Teucrium in Sardinia Island, Italy

Maccioni¹,

Falconieri

Sanna

et al. 2021

Plants

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The genus Teucrium L. (Lamiaceae) is a genus growing in mild climate zones, particularly in the Mediterranean Basin and Central Asia. It is represented by 11 taxa in Sardinia (Italy), living commonly in sunny habitats. In this study, the following eight Sardinian Teucrium taxa were selected, and the essential oils (EOs), obtained by stem distillation, were analyzed by GC–FID and GC–MS: T. capitatum subsp. capitatum, T. chamaedrys subsp. chamaedrys, T. flavum subsp. glaucum, T. marum, T. massiliense, T. scordium subsp. scordioides, T. scorodonia, and T. subspinosum. The comprehensive analyses led to the identification of 87 constituents representing the majority of the volatile compounds. Significant differences, both qualitative and quantitative, were observed between the taxa. Overall, monoterpenes and sesquiterpenes characterized all Teucrium EOs: T. capitatum subsp. capitatum and T. flavum subsp. glaucum revealed the highest content of monoterpene hydrocarbons, while in the other Teucrium taxa sesquiterpene hydrocarbons prevailed. Worthy of note, diterpenes were found only in T. marum and T. subspinosum, whereas T. massiliense was rich in non-terpenic oxygenated compounds. To the best of our knowledge, this is the first comprehensive report on the chemical composition of EOs obtained from Sardinian Teucrium species.

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“…The procedure included the calcul of FID response factors (RFs) relative to an internal standard. We carried out a methodology reported in the literature [36] and improved in our laboratory [37]. The application of this analytical procedure allowed the determination of the oil component relative concentrations expressed in g/100 g of essential oil.…”

Section: Methodsmentioning

confidence: 99%

Biological activities and volatile constituents of Daucus muricatus L. from Algeria

Bendiabdellah

Dib

Djabou

et al. 2012

Chemistry Central Journal

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BackgroundIn order to find new bioactive natural products, the antimicrobial and antioxidant activities of essential oil components extracted from the separated organs of the Algerian medicinal and aromatic plant Daucus muricatus L. were studied.ResultsThe chemical composition of essential oils obtained by hydrodistillation (HD) was investigated using Gas Chromatography–Retention Indices (GC-RI) and GC–Mass Spectrometry (GC-MS). Two types of essential oils were produced by D. muricatus: (i) The oil from roots is mainly composed by nonterpenic oxygenated compounds (59.8 g/100 g), and (ii) the aerial part oils (i.e., the leaves, stems, flowers, and umbels) was mainly composed by terpenic hydrocarbon compounds (62.3–72.2 g/100 g). The chemical composition of the volatile fraction isolated from different organs of Daucus muricatus were studied by HS–SPME/GC–RI and GC–MS after optimization of Solid Phase MicroExtraction parameters. For all organs studied, the main volatiles emitted by the plant were hydrocarbon compounds (60.7–82.2 g/100 g). Only quantitative differences between the volatiles of the separated organs studied were observed. In addition, the activity of the oil of D. muricatus against eight bacterial strains and one yeast was investigated. The oil from roots revealed active against S. aureus, while the essential oil obtained from the aerial parts was active against the yeast C. albicans.ConclusionsDaucus muricatus essential oil seems be a promising source of natural products with potential antimicrobial activity.

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Qualitative and quantitative analysis of volatile components of Teucrium massiliense L. – identification of 6‐methyl‐3‐heptyl acetate as a new natural product

Cited by 16 publications

References 25 publications

Essential oil composition and chemical variability of Xanthium italicum Moretti from Corsica

Essential oil composition and chemical variability of Xanthium italicum Moretti from Corsica

Characterization of Essential Oils from Different Taxa Belonging to the Genus Teucrium in Sardinia Island, Italy

Biological activities and volatile constituents of Daucus muricatus L. from Algeria

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