Hydrodistillation-headspace solvent microextraction, a new method for analysis of the essential oil components of Lavandula angustifolia Mill.

Fakhari, Ali Reza; Salehi, Peyman; Heydari, Rouhollah; Ebrahimi, Samad Nejad; Haddad, Paul R.

doi:10.1016/j.chroma.2005.08.054

Cited by 111 publications

(47 citation statements)

References 20 publications

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“…Total monoterpenes represented about (91.8 %) of LEO while the sesquiterpene content was (6.7 %). 42 As mentioned earlier, oxygenated compounds of LEO represented the highest proportion of the total identified compounds in the 2 samples analyzed. These compounds were mainly ethers, alcohols, and ketones.…”

Section: Morphological Featuresmentioning

confidence: 92%

Designing monographs for Rosmarinus officinalis L. and Lavandula angustifolia L.: Two Lebanese species with significant medicinal potentials

Koleilat¹,

Raafat²,

El-Lakany³

et al. 2017

Phcog J

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Introduction:The world health organization recommends validating medicinal plants to ensure safety and efficacy. Lavandula is valued for the production of essential oil used in aromatherapy. Rosmarinus is known for its folk use as anti-oxidant and antidiabetic. This study aims to design monographs for Rosmarinus officinalis (Linn.) and Lavandula angustifolia (Linn.) cultivated, in conditions similar to their natural habitat, at Beirut Arab University botanical garden. Also screening the antioxidant activity of both plants, and assessing the antidiabetic effect of R. officinalis (Linn.). Methods: macroscopic and microscopic examination, hydrodistillation to obtain essential oils (EOs), thin layer chromatography, Gas chromatography-Mass spectrometry, and physiochemical properties of the EOs were determined. The antioxidant effect of the EOs is determined by DPPH assay. The antidiabetic effect of Rosemary EO is investigated using alloxan-induced diabetic mice. Results: the qualities of studied species are in agreement with the standards described in WHO monographs and in the British pharmacopeia. Composition of the EO produced from either Rosemary (REO) or Lavender (LEO) collected at different months showed differences. The EO of both showed significant antioxidant effects in DPPH assay (p<0.05). In vivo investigation of the antidiabetic effect of REO showed a significant antidiabetic effect in diabetic mouse model (p<0.05). Conclusion: both plant species and their EOs fulfilled most of standards specified by the British Pharmacopeia 2013. Rosemary collected in April (Spring) showed the best antioxidant activity. Lavender collected in September (Early Fall) showed the best antioxidant activity. REO revealed significant lowering in blood glucose level at the dose of 110 mg/kg.

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Section: Morphological Featuresmentioning

confidence: 92%

Designing monographs for Rosmarinus officinalis L. and Lavandula angustifolia L.: Two Lebanese species with significant medicinal potentials

Koleilat¹,

Raafat²,

El-Lakany³

et al. 2017

Phcog J

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“…The chemical composition of Lavandula species has been widely investigated, and it varied according to the part of the plant analyzed [12] [13], the method of extraction [14] [15], the genetic determination, and the environmental factors [16], but above all according to the species. Thus, the essential oils of Lavandula species showed many chemotypes.…”

mentioning

confidence: 99%

Chemical Composition of the Leaf and Flower Essential Oils of Tunisian Lavandula dentata L. (Lamiaceae)

Touati

Chograni

Hassen³

et al. 2011

Chemistry & Biodiversity

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Essential oils of Lavandula dentata, a Tunisian native plant, were isolated from leaves and flowers by hydrodistillation in a Clevenger-type apparatus and characterized by GC-FID and GC/MS analyses. The average essential oil yields, means of five replicates, were higher for the flowers (8.60 mg/g) than for the leaves (6.56 mg/g). A total of 72 compounds were identified, accounting for 98.1 and 97.7% of the total oil composition of the leaves and flowers, respectively. The main essential oil constituents were 1,8-cineole, camphor, and l-fenchone, accounting for 33.54, 18.89, and 8.36% in the leaf oils and for 19.85, 23.33, and 7.13% in the flower oils, respectively. Besides this quantitative variation, the results also showed considerable qualitative variation between the essential oils of the two plant parts analyzed. These differences might be adaptative responses to ecological exigencies.

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“…Because monoterpenes are well known to be vulnerable to chemical changes under steam distillation conditions, and even conventional solvent extraction is likely to involve losses of more volatile compounds during removal of the solvent [13]. Headspace sampling (HS) is an alternative to liquid injection when essential oils must be selectively introduced into a gas chromatograph to avoid transfer of non-volatile constituents which may increase run times or complicate the separation [14].…”

Section: Introductionmentioning

confidence: 99%

Comparison of solid-phase and single-drop microextractions for headspace analysis of herbal essential oils

et al. 2009

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Abstract:The analytical microextraction methods of gas chromatography coupled with flame ionisation detector (GC-FID) for determination of selected essential oils in herbs were proposed. Two microextraction methods for the isolation of essential oils from plants such as Lavandula spica L., Melissa officinalis L., Mentha piperita L. and Salvia officinalis L. were used. The methods of solid-phase and single-drop microextractions, were optimised and compared. The obtained LOD values for all studied essential oils were found to be within 2.5-20.5 µg for SDME and 57.0-139.8 µg for SPME method per 100 g of dried sample leaves. The appropriate LOQ values were then 8.4-68.4 µg for SDME and 189.8-466.1 µg for SPME of target analytes per 100 g of dried sample leaves.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

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Hydrodistillation-headspace solvent microextraction, a new method for analysis of the essential oil components of Lavandula angustifolia Mill.

Cited by 111 publications

References 20 publications

Designing monographs for Rosmarinus officinalis L. and Lavandula angustifolia L.: Two Lebanese species with significant medicinal potentials

Designing monographs for Rosmarinus officinalis L. and Lavandula angustifolia L.: Two Lebanese species with significant medicinal potentials

Chemical Composition of the Leaf and Flower Essential Oils of Tunisian Lavandula dentata L. (Lamiaceae)

Comparison of solid-phase and single-drop microextractions for headspace analysis of herbal essential oils

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