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    Chemical composition of essential oil from aerial parts and fruits of Hyssopus officinalis L., Origanum acutidens, Prangos uechritzii, H-hircinum L. and Hypericum polyphyllum subsp polyphyllum
    (AGRIMEDIA GMBH, 2015) Figueredo, Guilles; Özcan, Mehmet Musa; Chalchat, Jean Claude; Bağcı, Yavuz; Chalard, Pierre; Al-Juhaimi, Fahad Y.; Doğu, Süleyman
    The chemical constituents of essential oil by hydrodistillation from the aerial parts of Hyssopus officinalis L., Origanum acutidens and Prangos uechtrizii wild growing in Turkey were extracted by hydrodistillation, and analysed by GC and GC-MS. The major constituents of H. officinalis oil were pinocarvone (29.17%), trans-pine camphone (27.19 %), beta-pinene (17.63%), cis-pinocamphone (4.68%) and myrcene (2.92%). The major constituents of the essential oil of O. acutidens were carvacrol (76.2%), p-cymene (7.4%) and borneol (3.2%). The major components of H. hircinum were alpha-pinene (6.96%), beta-pinene (28.79%), limonene (3.60%), cc-terpineol (7.20%), spathulenol (5.60%), caryophyllene oxyde (2.99%), humulene-1,2-epoxyde (4.20%), alpha-eudesmol (3.96%) and methyle linolenate (7.27%), while ishwarana (64.36%), aristolochene (1.50%), beta-selinene (2.61%), valencene (2.08%), alpha-selinene (1.32%), spathulenol (2.42%), caryophyllene oxyde (2.89%) and beta-eudesmol (4.30%) were recorded as the main constituents of H. polyphyllum.
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    Chemical Composition of Essential Oil of Hyssopus officinalis L. and Origanum acutidens
    (TAYLOR & FRANCIS LTD, 2012) Figueredo, Guilles; Özcan, Mehmet Musa; Chalchat, Jean Claude; Bağcı, Yavuz; Chalard, Pierre
    The chemical constituents of essential oil by hydrodistillation from the aerial parts of Hyssopus officinalis L. and Origanum acutidens (hand.-mazz.) ietswaart from Turkey were identified by gas chromatograph-mass spectrometer (GC-MS) demonstrated the presence of at least 24 compounds. The major constituents of H. officinalis oil were pinocarvone (29.2 %), trans-pine camphone (27.2 %), beta-pinene (17.6 %), cis-pinocamphone (4.7 %) and myrcene (2.92 %). The major constituents of the essential oil of O. acutidens were carvacrol (76.2 %), p-cymene (7.4 %) and borneol (3.2 %).
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    Chemical Composition of the Essential Oil of Pimpinella isaurica Matthews subsp. isaurica
    (TAYLOR & FRANCIS LTD, 2015) Figueredo, Guilles; Chalchat, Jean Claude; Doğu, Süleyman; Chalard, Pierre; Özcan, Mehmet Musa; Bağcı, Yavuz; Al Juhaimi, Fahad Y.
    The essential oil of aerial parts of P. isaurica wild growing in South Anatolia was extracted by using a Clevenger type apparatus, and analysed by GC and GC-MS. The percentage yield of the essential oil from of aerial parts of Pimpinella was 0.2 %. The oil was colourless to pale-yellow in colour. Fifty-three compounds representing 98.0 % of the P. isaurica oil were identified. The major constituents in the oil from the aerial parts of P. isaurica were: sabinene (12.79 %), myrcene (4.43 %), geijerene (24.30 %), terpinene-4-ol (4.71 %), dictamnol (5.82 %), caryophyllene oxide (3.84 %). Caryophyllene oxide was common to all samples. Other compounds were found in the oils but with some quantitative variation. Fifty-three compounds were identified in the aerial parts oil.
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    The effect of harvest periods on the chemical compositions of essential oils of sage (Salvia aucheri L.) leaves
    (TAYLOR & FRANCIS LTD, 2012) Figueredo, Guilles; Chalchat, Jean Claude; Chalard, Pierre; Özcan, Mehmet Musa; Al Juhaimi, Fahad Y.
    The essential oils of sage leaves (Salvia aucheri Bentham var. canescens Boiss. & Heldr.), growing wild in South Anatolia, were extracted by hydrodistillation and analysed by GC and GC-MS. The percentage yields of the essential oils from sage leaves harvested at different years were 1.0%, 1.3%, 1.3%, 1.0%, 1.4%, 1.5% and 1.2%, respectively. In this study, 1,8-cineole, camphre, camphene alpha-pinene and beta-pinene were identified as the major components of sage leaves collected at different periods. The main constituents of sage oil collected over the years were 1,8-cineole (35.01-48.06%), camphre (13.58-23.92%), camphene (6.77-8.82%), alpha-pinene (5.79-8.54%) and beta-pinene (4.32-6.28%).
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    The Effect of Harvest Years on Chemical Composition of Essential Oil of Basil (Ocimum minimum L.) Leaves
    (TAYLOR & FRANCIS LTD, 2017) Figueredo, Guilles; Özcan, Mehmet Musa; Chalchat, Jean Claude; Chalard, Pierre; Çelik, Battal; Özcan, Mustafa Mete
    The essential oils of basil (Ocimum minimum L.) leaves cultivated in Mersin (BuyukeceliGulnar) were extracted by hydrodistillation, and analysed by GC and GC-MS. The major constituents varied depending on harvest years. Linalool, eucalyptol, eugenol and epi-alpha-cadinol were determined as the major components of basil leaves collected between 2003 to 2008 years. The main constituents of oil were linalool (40.22% to 88.34%), eucalyptol (1.46% to 8.87%), eugenol (0.28% to 7.23%) and epi-alpha-cadinol (1.35% to 5.05%) depending on years. The essential oil composition varies qualitatively and/or quantitatively with the time of harvest.
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    Effect of Harvest Years on Chemical Composition of Essential Oil of Bitter Fennel (Foeniculum vulgare subsp piperitum) Leaves
    (ASIAN JOURNAL OF CHEMISTRY, 2012) Figueredo, Guilles; Chalchat, Jean Claude; Al Juhaimi, Fahad Y.; Özcan, Mehmet Musa
    The essential oils of leave of Foeniculum vulgare subsp. piperitum (Apiaceae) growing wild in south Anatolia, Turkey were extracted by hydrodistillation and analyzed by GC and GC-MS. The percentage yields of the essential oils from leaves of bitter fennel harvested in different years (from 2003 to 2008) were 1.3, 3.09, 2.1, 1.95, 1.7 and 1.9 %, respectively. The major constituents varied depending on harvest years. Methyl chavicol, fenchone, limonene and fenchyl acetate (exo) were established as the major components of bitter fennel leaves collected in different years. The main constituents of leave oil were methyl chavicol (24.67-69.93 %), fenchone (7.82-14.50 %), limonene (2.39-9.85 %) and fenchyl acetate (exo) (0.17-14.21 %) among the years.
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    The effect of Heights on Chemical Composition of Essential Oil of Bitter Fennel (Foeniculum vulgare subsp piperitum) fruits
    (TAYLOR & FRANCIS LTD, 2016) Figueredo, Guilles; Özcan, Mehmet Musa; Al-Juhaimi, Fahad Y.; Chalchat, Jean Claude; Özcan, Mustafa Mete; Chalard, Pierre
    The essential oils of fruit of Foeniculum vulgare subsp. piperitum (Apiaceae) growing wild in South Anatolia were extracted by hydrodistillation, and analysed by GC and GC-MS. The percentage yields of the essential oils from fruits of bitter fennel harvested in different heights were 2.66 %, 2.0 % and 1.66 %, respectively. The major constituents varied depending on harvest years. The major constituents of bitter fennel fruit were methyl chavicol (estragol), fenchone and limonene. Methyl chavicol contents of oil changed between 50.2 % (600 m height) to 69.2 % (1600 m height). Fenchone contents of samples varied between 6.5 % and 32.8 %. The highest fenchone content was established at the level of 600 m height. While limonene contents of oil were found as 7.1 % and 8.2 % for 600 m and 1600 m heights, respectively, it was determined as 0.37 % for sea level.