How do essential oil composition and phenolic acid profile of
            Heracleum persicum
            fluctuate at different phenological stages?

AbstractObjective:Determine the best elevation and phenological stages effects on essential oil content and composition inMaterials and methods:Three phenological stages (vegetative, full flowering and seeding) and three elevation ranges (2500–2700, 2700–2900 and over 2900 m), shoots of plants collected from Kallar mountain as natural habitats from Chaharmahal and Bakhtiari Province. Composition of essential oil detected by GC/MS.Results:The maximum amount of secondary metabolites of β-ocimene, methyl chavicol, germacrene-D, 1,8 cineole and phthalate had measured in vegetative stage and various of elevation ranges. The most essential oil content (0.145%) was obtained in 2700–2900 m and full flowering stage. The most components in full flowering were β-eudesmol, menthol and γ-eudesmol. The most of germacrene-D, levomenol, β-thujene, β-caryophyllene, β-sesquiphellandrene, α-eudesmol and delta-cadinene was achieved in seeding stage.Conclusion:Elevation and phenological stages had significant effect on essential oil of

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Essential oil composition and antibacterial activity of Thymus caramanicus at different phenological stages

Food Chemistry ◽

10.1016/j.foodchem.2008.02.083 ◽

2008 ◽

Vol 110 (4) ◽

pp. 927-931 ◽

Cited By ~ 104

Author(s):

S. Nejad Ebrahimi ◽

J. Hadian ◽

M.H. Mirjalili ◽

A. Sonboli ◽

M. Yousefzadi

Keyword(s):

Antibacterial Activity ◽

Essential Oil ◽

Essential Oil Composition ◽

Oil Composition ◽

Phenological Stages

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Essential Oil Composition and Antibacterial Activity of Origanum vulgare subsp. glandulosum Desf. at Different Phenological Stages

Journal of Medicinal Food ◽

10.1089/jmf.2013.0079 ◽

2013 ◽

Vol 16 (12) ◽

pp. 1115-1120 ◽

Cited By ~ 29

Author(s):

Afef Béjaoui ◽

Hédia Chaabane ◽

Maroua Jemli ◽

Abdennacer Boulila ◽

Mohamed Boussaid

Keyword(s):

Antibacterial Activity ◽

Essential Oil ◽

Essential Oil Composition ◽

Oil Composition ◽

Origanum Vulgare ◽

Phenological Stages

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Essential Oil Composition of Thymus × citriodorus (Pers.) Schreb. at Different Harvest Stages

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha45110672 ◽

2017 ◽

Vol 45 (1) ◽

pp. 185-189 ◽

Cited By ~ 5

Author(s):

Ozlem TONCER ◽

Sengul KARAMAN ◽

Emel DIRAZ ◽

Tahsin SOGUT ◽

Suleyman KIZIL

Keyword(s):

Essential Oil ◽

Essential Oil Composition ◽

Biologically Active ◽

Bornyl Acetate ◽

Oil Composition ◽

Flowering Stage ◽

Phenological Stages ◽

Full Flowering ◽

Total Oil ◽

Active Substances

Thymus is represented by 39 species (60 taxa) in Turkey and the rate of its endemism is 45% in Turkey. The herb is widely used for several purposes. Its essential oil compositions and biologically active substances are affected by the phenological stages. Therefore, the aim of this study is to evaluate the variations in the essential oil composition of Thymus × citriodorus (Pers.) Schreb. growing in Southeastern Anatolia Region of Turkey at different phenological stages (pre-flowering, full flowering, post flowering). The oils were obtained by hydrodistillation of air-dried samples. The yields of oils (w/w %) at different phenological stages was respectively 2.0% at pre-flowering state, 1.9% at flowering stage, and 1.3% at post-flowering stage. T. × citriodorus was determined mainly by using GC/MS. A total of 21 compounds, representing 93.9% in the pre-flowering stage, 98.8% in the flowering stage and 98.91% in post-flowering of the total oil, were identified. Monoterpene hydrocarbons (terpinolene) and oxygenated monoterpenes (α-terpineol) were observed to have the highest percentage in T. × citriodorus oil. The major compounds of the oil were terpinolene, α- terpineol, linalool, bornyl acetate and borneol. The highest percentage of terpinolene was determined to be 71% in flowering stages.

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Essential oil composition, total phenolic and flavonoids contents, and antioxidant activity of Oliveria decumbens Vent. (Apiaceae) at different phenological stages

Journal of Cleaner Production ◽

10.1016/j.jclepro.2018.07.029 ◽

2018 ◽

Vol 198 ◽

pp. 91-95 ◽

Cited By ~ 23

Author(s):

Hassan Esmaeili ◽

Akbar Karami ◽

Filippo Maggi

Keyword(s):

Antioxidant Activity ◽

Essential Oil ◽

Essential Oil Composition ◽

Total Phenolic ◽

Oil Composition ◽

Phenological Stages

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Seasonal variation of the essential oil from two Brazilian native Aldama La Llave (Asteraceae) species

Anais da Academia Brasileira de Ciências ◽

10.1590/0001-376520162015-0732 ◽

2016 ◽

Vol 88 (3 suppl) ◽

pp. 1899-1907 ◽

Cited By ~ 1

Author(s):

TUANE S. DE OLIVEIRA ◽

ALINE B. BOMBO ◽

ADRIANA S.S. DE OLIVEIRA ◽

VERA L. GARCIA ◽

BEATRIZ APPEZZATO-DA-GLÓRIA

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Essential Oil Composition ◽

Seasonal Development ◽

Correct Identification ◽

Oil Composition ◽

Phenological Stages ◽

Aromatic Species ◽

Phases Of Development ◽

First Time

ABSTRACT Aldama arenaria and A. robusta are morphologically similar aromatic species that have seasonal development. The yield and chemical composition of essential oils from aerial and underground vegetative organs of these species were compared to verify the production of volatile metabolites in flowering and dormant phases of development and to identify if there are unique compounds for either species. The major compound in the essential oils from A. arenaria leaves was palustrol (16.22%) and for aerial stems was limonene (15.3%), whereas limonene (11.16%) and α-pinene (19.64%) were the major compounds for leaves and aerial stems from A. robusta, respectively. The major compound for the underground organs was α-pinene, in both species and phenological stages. High amounts of diterpenes were found especially for A. arenaria essential oils. Each analyzed species presented unique compounds, which can provide a characteristic chemical profile for both species helping to solve their taxonomic problems. This study characterized for the first time the yield and essential oil composition of A. arenaria and A. robusta, which have medicinal potential, and some of the compounds in their essential oils are unique to each one and may be useful in helping the correct identification of them.

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