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 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 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 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.

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oil of Anaphalis nubigena Var. Monocephala

2009 ◽  
Vol 4 (7) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Rajesh K. Joshi ◽  
Chitra Pande ◽  
Mohammad H. K. Mujawar ◽  
Sanjiva D. Kholkute
Keyword(s):  
Escherichia Coli ◽  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Klebsiella Pneumoniae ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil

The essential oil composition of the aerial parts of Anaphalis nubigena DC. var. monocephala (DC.) C. B. Clarke collected from Pindari glacier at a height of 3300 m, was analyzed by using GC and GC/MS. Sixty components were identified, accounting for 95.9% of the total oil. The main constituents were α-guaiene (12.3%), γ-muurolene (10.4%), γ-cadinene (8.3%), α-muurolol (7.4%), α-gurjunene (6.0%) and α-bulnesene (5.8%). The oil was found to be rich in sesquiterpene hydrocarbons (60.1%). The oil was active against Escherichia coli (NCIM 2065) and Klebsiella pneumoniae (NCIM 2957), with MIC values of 125 μg/mL and 500 μg/mL, respectively.

scholarly journals Chemical Composition of the Essential Oil of Croton bonplandianus from India

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Total Oil

The essential oil obtained from the aerial parts of Croton bonplandianus Baill. was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 37 compounds have been identified, representing 96.2% of the total oil. The main constituents were identified as β-caryophyllene (16.7%), germacrene D (14.7%), borneol (8.3%), Z-β-damascenone (6.(%), isobornyl acetate (6.2%), α-humulene (6.1%), germacrene A (5.2%) and caryophyllene oxide (4.5%). The oil was rich in sesquiterpene hydrocarbons (60.1%).

scholarly journals Composition of Essential Oil of Aerial Parts of Chamomilla suaveolens from Estonia

2010 ◽  
Vol 5 (1) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Anne Orav ◽  
Janne Sepp ◽  
Tiiu Kailas ◽  
Mati Müürisepp ◽  
Elmar Arak ◽  
...  
Keyword(s):  
Essential Oil ◽  
Palmitic Acid ◽  
Essential Oil Composition ◽  
Biologically Active Compounds ◽  
Biologically Active ◽  
Oil Composition ◽  
Active Compounds ◽  
Aerial Parts ◽  
Total Oil

Variations in the essential oil composition of aerial parts of pineapple weed (Chamomilla suaveolens (Pursh) Rydb.) growing wild in Estonia, were determined using GC/FID and GC/MS. Forty-four components were identified, representing over 90% of the total oil. Nine compounds have not been mentioned in the literature before. The principal biologically active compounds in C. suaveolens oils were (Z)-en-yne-dicycloether (17.0 – 40.7%), (E)-β-farnesene (19.5– 32.2%), geranyl isovaleriate (8.4 –18.4%), palmitic acid (0.3 – 9.4%) and myrcene (1.1 – 7.9%). The investigation seems to approve the benefit of using aerial parts of pineapple weed as the substitute for flowers.

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