scholarly journals Chemical Composition of the Essential oil ofChromolaena odorata(L.) R. M. King & H. Rob. Roots from India

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Chromolaena Odorata ◽  
Ionization Detector ◽  
Oil Composition ◽  
Flame Ionization ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil ◽  
Long Chain

The hydrodistilled essential oil of the roots ofChromolaena odorata(L.) R. M. King & H. Rob. was analysed by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). A total of twenty-nine compounds have been identified, accounting 97.6% of the total oil. The main constituents were himachalol (24.2%), 7-isopropyl-1,4-dimethyl-2-azulenol (17.6%), androencecalinol (14.1%), and 2-methoxy-6-(1-methoxy-2-propenyl) naphthalene (5.6%). The essential oil consists mainly of phenyl derivatives (41.6%), followed by oxygenated sesquiterpenes ((26.6%), long-chain hydrocarbons (18.9%), sesquiterpene hydrocarbons (6.8%), oxygenated monoterpenes (2.8%), and monoterpene hydrocarbons (0.9%). This study revealed that the roots ofC. odorataproduced different chemotypes other than leaves oil. This is the first report on the essential oil composition of the roots ofC. odorata.

scholarly journals Chemical Composition of the Essential Oil of the Flowering Aerial Parts of Pimpinella monoica

2013 ◽  
Vol 8 (11) ◽  
pp. 1934578X1300801
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Bornyl Acetate ◽  
Ionization Detector ◽  
Oil Composition ◽  
Flame Ionization ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil

The essential oil composition of the flowering aerial parts of Pimpinella monoica Dalzell was analyzed by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Fifty four compounds were identified, representing 94.7% of the total oil. The main constituents were bornyl acetate (26.2%), β-caryophyllene (24.0%), limonene (6.7%) and amorpha-4, 11-dien (4.9%). The oil was dominated by sesquiterpene hydrocarbons (40.7%), followed by oxygenated monoterpenes (27.2%), monoterpene hydrocarbons (15.6%), oxygenated sesquiterpenes (7.6%) and others (3.6%).

scholarly journals Chemical Composition of Vernonia albicans Essential Oil from India

2014 ◽  
Vol 9 (7) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Flame Ionization Detector ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil

The chemical composition of the hydro-distilled essential oil obtained from the flowering aerial parts of Vernonia albicans DC. (Asteraceae) was analyzed by gas chromatography equipped with a flame ionization detector (GC-FID) and gas chromatography coupled with a mass spectrometry (GC/MS). Thirty-nine compounds have been identified, representing 97.5% of the total oil. The major constituents were β-caryophyllene (34.3%), γ-amorphene (19.5%), 9-epi-β-caryophyllene (6.9%), and α-pinene (6.9%). The oil was found to be rich in sesquiterpene hydrocarbons (73.9%).

scholarly journals Chemical Composition of the Essential Oil of Lepidagathis Fasciculata from Bondla Forest of Goa, India

2013 ◽  
Vol 8 (8) ◽  
pp. 1934578X1300800
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Total Oil

The hydro-distilled essential oil obtained from the flowering aerial parts of Lepidagathis fasciculata Nees was analyzed by gas chromatography equipped with a flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). A total of 38 compounds have been identified, representing 91.2% of the total oil. The major constituents were δ-cadinene (14.4 %), γ-curcumene (9.8%), sandaracopimarinal (6.6%), germacrene D-4-ol (6.1%), cembrene (5.0%), β-calacorene (3.6%), ar-curcumene (3.3%), trans–4,10-epoxy-amorphane (3.2%), abietatriene (2.9%), and α-cubebene (2.8%). The oil was rich in sesquiterpene hydrocarbons (43.8%).

scholarly journals Chemical Composition of the Essential Oil of Baccharoides lilacina from India

2013 ◽  
Vol 8 (3) ◽  
pp. 1934578X1300800
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Oil Composition ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil

The essential oil composition from the aerial parts of Baccharoides lilacina (Dalzell & A. Gibson) M. R. Almeida was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 41 compounds have been identified, representing 97.4% of the total oil. The main constituents were identified as β-caryophyllene (27.7%), epi-α-cadinol (25.1%), caryophyllene oxide (9.9%), α-muurolol (7.6%), α-cadinene (6.1%) and α-cadinol 4.5%). The oil was found to be rich in oxygenated sesquiterpenes (47.1%) and sesquiterpene hydrocarbons (46.2%).

scholarly journals GC/MS Analysis of the Essential Oil of Leucas indica from India

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil ◽  
First Time

The aim of the present study was to investigate and identify the essential oil constituents of Leucas indica (L.) R.Br. (Lamiaceae). The chemical composition of the hydro-distilled essential oil was obtained from the flowering aerial parts of L. indica for the first time. The oil was analyzed by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Fifty-six compounds were identified, representing 99.1% of the total oil. The main constituents were β-caryophyllene (51.1%) and α-caryophyllene (10.2%). The oil was found to be rich in sesquiterpene hydrocarbons (71.8%).

scholarly journals GC/MS Analysis of the Essential Oil of Vernonia cinerea

2015 ◽  
Vol 10 (7) ◽  
pp. 1934578X1501000 ◽  
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Flame Ionization Detector ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Ms Analysis ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil ◽  
Vernonia Cinerea

The hydro-distilled essential oil obtained from the roots of V. cinerea Less. (Asteraceae) was investigated by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Twenty-five constituents were identified, which represented 97.4% of the total oil. The major compounds were α-muurolene (30.7%), β-caryophyllene (9.6%), α-selinene (8.7%), cyperene (6.7%) and α-gurjunene (6.5%). The essential oil was dominated by sesquiterpene hydrocarbons (87.8%).

scholarly journals Compositional and Enantiomeric Analysis of the Essential Oil of Taxodium Distichum from India

2016 ◽  
Vol 11 (3) ◽  
pp. 1934578X1601100
Author(s):  
Rajendra C. Padalia ◽  
Ram S. Verma ◽  
Amit Chauhan ◽  
Prakash Goswami ◽  
Chandan S. Chanotiya
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Taxodium Distichum ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Flame Ionization ◽  
Enantiomeric Analysis ◽  
Racemic Form ◽  
Different Seasons

The leaf essential oil composition of Taxodium distichum L., collected from the foothills of Uttarakhand, India was analyzed using gas chromatography-flame ionization detection (GC-FID) and gas chromatography-mass spectrometry (GC-MS) equipped with DB-5 (5% diphenyl-95% dimethyl polysiloxane) and β-cyclodextrin (6-tertiarybutyldimethylsiliyl-2,3-diethyl-β-cyclodextrin) capillary columns. Seventeen constituents, representing 90.3 to 99.4% of composition were identified in the essential oils from different seasons, viz. spring, summer, rainy, autumn and winter. The essential oil composition was mainly dominated by monoterpene hydrocarbons, represented mainly by α-pinene (81.9–94.3%). Other constituents of the oil were myrcene (0.5–4.7%), β-pinene (2.2–2.9%), limonene (0.5–1.5%), camphene (≤0.03–1.5%), and α-terpineol (upto 1.6%). Chiral analysis of T. dstichum essential oil on an ethyl substituted β-cyclodextrin capillary column revealed the presence of α-pinene in racemic form, with an enantiomeric ratio of 49.3% for (1 R)-(+)- and 50.7% for (1 S)-(-)-α-pinene.

scholarly journals Essential Oil Composition of Xanthium italicum From Serbia

2019 ◽  
Vol 14 (6) ◽  
pp. 1934578X1984996
Author(s):  
Violeta D. Mitić ◽  
Marija D. Ilić ◽  
Olga Jovanović ◽  
Vesna P. Stankov-Jovanović ◽  
Marija S. Marković ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Methyl Eugenol ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Chromatography Mass Spectrometry ◽  
Total Oil ◽  
Very High

The essential oil isolated from stem, fresh and mature fruits of Xanthium italicum Moretti by hydrodistillation was analyzed by gas chromatography-mass spectrometry. In the oil of stem, fresh and mature fruits, 121 components were identified, representing 94.6%, 92.1%, and 91.3% of the total oil, respectively. The most abundant compounds in stem oil were limonene (23.0%), methyl eugenol (5.4%), β-cubebene (5.0%),and δ-cadinene (3.3%). The oil of fresh fruits contained germacrene B (28.7%), shyobunol (16.7%), and α-humulene (8.4%) as major components. There were 4 major constituents in X. italicum oil from mature fruits: germacrene B (31.3%),α-humulene (11.8%), δ-cadinene (3.2%),and γ-muurolene (2.9%). Percentages of sesquiterpenes in oils from fresh and mature fruits were very high, 85.8% and 73.8 %.

scholarly journals Essential oil composition of three Cryptocarya species from Malaysia

2020 ◽  
Vol 75 (7-8) ◽  
pp. 297-301
Author(s):  
Muhammad Ammar Mohd Azhar ◽  
Wan Mohd Nuzul Hakimi Wan Salleh ◽  
Shamsul Khamis
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Skin Infections ◽  
Oil Composition ◽  
Traditional Medicines ◽  
Total Oil

AbstractCryptocarya species are mainly distributed in Africa, Asia, Australia and South America, widely used in traditional medicines for the treatment of skin infections and diarrhea. The present investigation reports on the extraction by hydrodistillation and the chemical composition of three Cryptocarya species (Cryptocarya impressa, Cryptocarya infectoria, and Cryptocarya rugulosa) essential oils from Malaysia. The chemical composition of these essential oils was fully characterized by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). A total of 51 components were identified in C. impressa, C. infectoria, and C. rugulosa essential oils representing 91.6, 91.4, and 83.0% of the total oil, respectively. The high percentages of α-cadinol (40.7%) and 1,10-di-epi-cubenol (13.4%) were found in C. impressa oil. β-Caryophyllene (25.4%) and bicyclogermacrene (15.2%) were predominate in C. infectoria oil. While in C. rugulosa oil, bicyclogermacrene (15.6%), δ-cadinene (13.8%), and α-copaene (12.3%) were predominate. To the best of our knowledge, there is no report on the essential oil composition of these three species.

scholarly journals Chemical Composition of the Essential oil of Syzygium kanarense: An Endemic and Rediscovered Species from the Western Ghats, India

2017 ◽  
Vol 12 (12) ◽  
pp. 1934578X1701201
Author(s):  
Rajesh K. Joshi ◽  
H. Sooryaprakash Shenoy ◽  
Ramakrishna Marati
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Western Ghats ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Aerial Parts ◽  
Total Oil ◽  
First Time ◽  
The Western Ghats

The hydro-distilled essential oil obtained from the aerial parts of Syzygium kanarense(Talbot) Raizada (Myrtaceae) was investigated for the first time by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Fifty-two constituents were identified, which represented 91.9% of the total oil. The major compounds were seychellene (7.3%), α-muurolol (5.4%), cis-cadinene ether (5.3%), β-vetivenene (5.1%), 10 epi-γ-eudesmol (4.8%), guaiol (4.5%), longiborneol (4.1%), δ-elemene (4.1%) and α-muurolene (4.1%). The oil was found to be rich in sesquiterpene hydrocarbon (49.5%) type constituents.

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