Essential oil composition ofNepeta nuda L. ssp.nuda

Essential oils from the aerial parts of three populations of Nepeta crassifolia (Lamiaceae), which are Iranian endemic species and four populations of N. nuda grown in northwestern Iran were obtained by hydro-distillation and examined by gas chromatography (GC) and GC-mass spectrometry (GC/ MS). Overall, 37 compounds were identified in the essential oils from different populations of N. crassifolia and N. nuda. The essential oils consisted mainly of oxygenated monoterpenes and sesquiterpene aldehydes. The major components in the oils of three populations of N. crassifolia were 4aβ, 7α, 7aβ-nepetalactone (16.46-27.45%), 4aα, 7α, 7aβ-nepetalactone (13.45-17.54%), 1,8-cineole (8.15-9.70%) and elemol (14.38-22.14%), while 7aβ-nepetalactone (61-72.21%), 4aα, 7α, 7aβ-nepetalactone (8.72-12.63%), pulegone (7.36%) and piperitenone oxide (4.12%) were identified as the main constituents in the oils of four populations of N. nuda. The essential oils from the aerial parts of two species of Nepeta sourced in northwestern Iran were rich in oxygenated monoterpenes. In conclusion, the present study indicated the essential oil components of wild populations of both Nepeta species varied with chemotypes, environmental conditions, and geographic origin.

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“…Kokdil et al [44] Suva planina, East of Serbia 1,8cineole, (62.2%), germacrene D (2.2%), β -caryophyllene (3.6%) α-terpineol (7.0%)…”

Section: Resultsmentioning

confidence: 99%

Essential oil composition of seven populations belonging to twoNepetaspecies from Northwestern Iran

Narimani

Moghaddam

Pirbalouti

et al. 2017

International Journal of Food Properties

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“…Spathulenol, which is the first major component in our oil, was presented in the volatile oil of several Nepeta species such as N. oxyodonta (Sajjadi and Eskandari 2005), N. ucrainica (Javadnia et al . 2005) and N. nuda (Kokdi et al . 1998).…”

Section: Resultsmentioning

confidence: 99%

Studies on the Antioxidant Activity of the Volatile Oil and Methanol Extracts of Nepeta Laxiflora Benth. And Nepeta Sessilifolia Bunge. From Iran

Safaei‐Ghomi

Nahavandi

Batooli³

2011

Journal of Food Biochemistry

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This study was designed to examine the chemical composition of oils and antioxidant activity of the volatile oils and methanol extracts of Nepeta laxiflora Benth. and Nepeta sessilifolia Bunge. Gas chromatography and gas chromatography/mass spectrometry analyses of the volatile oils resulted in 57 compounds. The most abundant compounds in volatile oils of N. laxiflora were a-pinene (19.7 %) and 1,8-cineole (11.8 %) and also for N. sessilifolia were spathulenol (25.75 %) and lavandulyl acetate (16.70 %). The polar subfractions of methanol extracts of N. laxiflora and N. sessilifolia showed the highest radical-scavenging activity (IC50 = 105.92 Ϯ 1.39 and 99.71 Ϯ 0.41 mg, respectively). In the b-carotene-linoleic acid system, the inhibition capacity of the nonpolar subfractions of methanol extracts of N. laxiflora and N. sessilifolia was found with the strongest activity (87.19 and 87.68% inhibition, respectively), which is almost equal to the inhibition capacity of positive control butylated hydroxytoluene. PRACTICAL APPLICATIONSThe volatile oils and methanolic extracts of Nepeta laxiflora Benth. and Nepeta sessilifolia Bunge. showed potential antibacterial and antioxidant activities. The results support the traditional usage and also possible use of plant volatile oil and extracts in the food and/or pharmaceutical industry. We hope that the natural compounds derived from volatile oil and extracts might be useful as an antispasmodic, diuretic, antisept, antitussive, antiasthmatic and febrifuge.

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“…However, in the oils of N. depauperata [24], N. cilicia [25], N. nuda ssp. nuda [26], N. glomerulosa ssp. carmanica [27] and N. macrosiphone [28], no nepetalactones were found.…”

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confidence: 99%

Nepetalactone Content and Antibacterial Activity of the Essential Oils from Different Parts of Nepeta persica

Shafaghat

Oji

2010

Natural Product Communications

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The essential oils from the flower, leaf, stem and root of Nepeta persica Boiss., analyzed by GC and GC/MS, were shown to contain 4aβ,7α,7aβ-nepetalactone (58.5%, 62.3%, 66.2% and 27.1%, respectively), and 4aα,7α,7aβ-nepetalactone (33.0%, 28.3%, 24.9% and 7.6%, respectively). The other main component of the flower and stem oils was α-pinene (3.6% and 4.4%) and of the leaf oil β-ocimene (3.6%). In the root oil, other main constituents were α-pinene (40.4%), α-amorphene (5.3%), γcadinene (2.9%), and cis-calamenene (2.5%). Nepetalactone was the major component of the flower, leaf and stem oils, which are thus important sources of nepetalactone. Antibacterial activities of the flower, leaf, stem and root oils were evaluated using the micro-dilution broth method. Inhibitory effects on Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella typhi and Enterococcus faecalis were recorded. The flower, leaf, stem, and root oils had difference activities against the test microorganisms. The antibacterial property of the essential oils might be ascribed to their high content of nepetalactone isomers.

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Essential oil composition ofNepeta nuda L. ssp.nuda

Cited by 28 publications

References 3 publications

Essential oil composition of seven populations belonging to twoNepetaspecies from Northwestern Iran

Essential oil composition of seven populations belonging to twoNepetaspecies from Northwestern Iran

Studies on the Antioxidant Activity of the Volatile Oil and Methanol Extracts of Nepeta Laxiflora Benth. And Nepeta Sessilifolia Bunge. From Iran

Nepetalactone Content and Antibacterial Activity of the Essential Oils from Different Parts of Nepeta persica

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