Essential Oil of Alfavaca, Ocimum gratissimum, from Brazilian Amazon

1990 ◽  
Vol 45 (9-10) ◽  
pp. 1073-1076 ◽  
Author(s):  
Otto Vostrowsky ◽  
Wolfgang Garbe ◽  
Hans-Jürgen Bestmann ◽  
José Guilherme S. Maia
Keyword(s):  
Essential Oil ◽  
Brazilian Amazon ◽  
Methyl Eugenol ◽  
Ocimum Gratissimum ◽  
Steam Distillate ◽  
Ms Analysis ◽  
Sesquiterpene Hydrocarbons ◽  
Main Components

Abstract13CNMR , GC and GC/MS analysis of the steam distillate from leaves and stems of alfavaca, Ocimum gratissimum, from the Brazilian Amazon resulted in the identification of methyl eugenol (46.83%) and eugenol (19.26%) as the main components, and another 34 compounds, mainly monoterpene and sesquiterpene hydrocarbons

scholarly journals GC/MS Analysis and Antimicrobial Activity of the Essential Oil of Fresh Leaves of Eucalytus Globulus, and Leaves and Stems of Smyrnium Olusatrum from Constantine (Algeria)

2010 ◽  
Vol 5 (10) ◽  
pp. 1934578X1000501 ◽  
Author(s):  
Habiba Daroui-Mokaddem ◽  
Ahmed Kabouche ◽  
Mabrouka Bouacha ◽  
Boudjemaa Soumati ◽  
Aida El-Azzouny ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Eucalyptus Globulus ◽  
Bacterial Strains ◽  
Ms Analysis ◽  
Wide Range ◽  
Main Components ◽  
Type Apparatus

The essential oils of fresh leaves of Eucalyptus globulus L. (Myrtaceae), and leaves and stems of Smyrnium olusatrum L. (Apiaceae), obtained by hydrodistillation in a Clevenger-type apparatus, were analyzed by GC/MS. Twenty compounds were characterized, representing 98.3% of the essential oil of E. globulus, with 1,8-cineole (48.6%), globulol (10.9%), trans-pinocarveol (10.7%), and α-terpineol (6.6%) as main components, while thirty-three compounds were characterized, representing 94.3% of the essential oil of S. olusatrum, with sabinene (27.1%), curzerene (13.7%), methyl-1-benzyl-2-oxocyclooctane carboxylate (12.3%), α-pinene (7.2%), cryptone (7.1%) and β-pinene (5.7%) as the major components. The essential oils of E. globulus and S. olusatrum were tested against a wide range of fungal and bacterial strains. Both oils showed significant antimicrobial activity.

scholarly journals Volatiles of Tanacetum macrophyllum Obtained by Different Extraction Methods

2018 ◽  
Vol 13 (7) ◽  
pp. 1934578X1801300
Author(s):  
Biljana Nikolić ◽  
Milić Matović ◽  
Marina Todosijević ◽  
Jovana Stanković ◽  
Mirjana Cvetković ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Extraction Methods ◽  
Static Headspace ◽  
Oxygenated Monoterpenes ◽  
Ms Analysis ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Headspace Gc

Terpene compounds of Tanacetum macrophyllum as 1) essential oils, obtained by hydrodistillation (HD), 2) essential oil extracts, obtained by simultaneous hydrodistillation and extraction (SDE) and 3) volatiles, obtained by Static Headspace GC-MS analysis (HS) were processed. Monoterpenes were the most dominant (49.2%, 49.5% and 90.4%, respectively). Profiles of essential oils obtained by HD and SD were quite similar, with oxygenated monoterpenes (39.3% and 39.4%) being the most abundant. In HS volatiles oxygenated monoterpenes also dominated (57.4%). Total sesquiterpenes were abundant in HD and SDE volatiles (38.2% and 39.2%, resp.), where sesquiterpene hydrocarbons were prevalent (27.3% and 28.7%, resp.). Germacrene D was dominant in HD and SDE oils (22.0% and 23.3%, resp.) and 1,8-cineole in HS volatiles (34.3%). To our knowledge, this is the first use of Headspace technique on T. macrophyllum. Furthermore, this is the first comparison of different techniques of volatile extraction in T. macrophyllum.

scholarly journals Chemical Composition of the Essential Oil from Chaerophyllum Temulum (Apiaceae)

2015 ◽  
Vol 10 (8) ◽  
pp. 1934578X1501000 ◽  
Author(s):  
Jelena G. Stamenković ◽  
Gordana S. Stojanović ◽  
Ivana R. Radojković ◽  
Goran M. Petrović ◽  
Bojan K Zlatković
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Quantitative Composition ◽  
Qualitative Composition ◽  
Flowering Stage ◽  
Main Compound ◽  
Fruiting Stage ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Main Components

The present study reports the chemical composition on the essential oil obtained from fresh roots, stems, inflorescences and fruits of Chaerophyllum temulum. In all samples, except the roots, the most dominant components were sesquiterpene hydrocarbons. ( Z)-Falcarinol was the principal constituent of the root essential oils (61.7% at the flowering stage and 62.3% at the fruiting stage). The blossom oil was dominated by ( Z,E)-α-farnesene (23.4%), ( E)-β-farnesene (9.0%) and germacrene D-4-ol (9%), whereas the oil from the fruit had germacrene D-4-ol (27.6%) as its main compound, accompanied by ( Z,E)-α-farnesene (13.4%). Germacrene D was the most abundant component of the stem essential oil (38.4% at the flowering stage and 32.5% at the fruiting stage). The obtained results show that the qualitative composition of the oil depends on the part of the plant which is analyzed, while the quantitative composition of the main components depends on the growing stage of the plant.

scholarly journals Composition and Antimicrobial Activities of the Leaf Essential Oil of Machilus kusanoi from Taiwan

2011 ◽  
Vol 6 (2) ◽  
pp. 1934578X1100600 ◽  
Author(s):  
Chen-Lung Ho ◽  
Kuang-Ping Hsu ◽  
Yen-Hsueh Tseng ◽  
Eugene I-Chen Wang ◽  
Pei-Chun Liao ◽  
...  
Keyword(s):  
Essential Oil ◽  
Wood Decay ◽  
Antimicrobial Activities ◽  
Sesquiterpene Hydrocarbons ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Main Components

The hydrodistillated leaf essential oil of Machilus kusanoi was analyzed to determine its composition and yield. Twenty-three compounds were identified, the main components being β-caryophyllene (23.3%), β-eudesmol (17.1%), α-terpineol (16.0%), n-dodecanal (14.2%), and n-decanal (10.4%). Sesquiterpene hydrocarbons (28.1%) and non-terpenoids (25.0%) were the predominant groups of compounds. The leaf oil exhibited excellent antimicrobial and anti-wood-decay fungal activities.

scholarly journals Composition and Antimicrobial Activity of the Leaf Essential oil of Litsea kostermansii from Taiwan

2009 ◽  
Vol 4 (8) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Chen-Lung Ho ◽  
Eugene I-Chen Wang ◽  
Kuang-Ping Hsu ◽  
Pei-Yeh Lee ◽  
Yu-Chang Su
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Antimicrobial Activities ◽  
Sesquiterpene Hydrocarbons ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Main Components

The hydrodistillated leaf essential oil of Litsea kostermansii was analyzed to determine its composition and yield. Seventy-three compounds were identified, the main components being β-eudesmol (22.5%), γ-eudesmol (18.6%), δ-selinene (8.5%), α-eudesmol (6.0%), and γ-muurolene (4.7%). Oxygenated sesquiterpenes (66.2%) and sesquiterpene hydrocarbons (32.8%) were the predominant groups of compounds. The leaf oil exhibited excellent antimicrobial activities.

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 STUDY OF CHEMICAL COMPOSITION OF TAMARIX RAMOSISSIMA ESSENTIAL OIL

2017 ◽  
pp. 117-121 ◽  
Author(s):  
Анатолий (Anatolij) Валериевич (Valerievich) Великородов (Velikorodov) ◽  
Владимир (Vladimir) Николаевич (Nikolaevich) Пилипенко (Pilipenko) ◽  
Татьяна (Tat'jana) Алексеевна (Alekseevna) Пилипенко (Pilipenko) ◽  
Алексей (Aleksej) Георгиевич (Georgievich) Тырков (Tyrkov)
Keyword(s):  
Essential Oil ◽  
Steam Distillation ◽  
Retention Indices ◽  
Raw Material ◽  
Tamarix Ramosissima ◽  
Gas Liquid Chromatography ◽  
Vegetative Period ◽  
Sesquiterpene Hydrocarbons ◽  
Linear Retention Indices ◽  
Main Components

Samples of essential oil from Tamarix ramosissima plant growing in the Astrakhan region were obtained by steam distillation and the dependence of its yield on the vegetative period of the plant was studied. The duration of the process of steam distillation was established experimentally on the basis of a study of the dynamics of the change in the yield of essential oil in time. The yield of essential oil was determined in % by weight of absolutely dry raw material. The largest yield of essential oil was obtained from plants in the flowering phase (0,23–0,3%). By method of gas-liquid chromatography carried out a quantitative analysis of the main components of essential oil Tamarix ramosissima. The quantitative content of essential oil components was calculated from the areas of gas chromatography peaks without the use of correction factors. Qualitative analysis was carried out by comparing the linear retention indices. It was found that the composition of the essential oil of Tamarix is very specific. It includes hydrocarbons (9,51%), alcohols (3,46%), aldehydes (2,55%), monoterpene hydrocarbons (5,4%), oxygenated terpenes (23,06%), sesquiterpene hydrocarbons (1,48%), oxygenated diterpenoids (3,37%), and a significant amount of fatty acids and their esters (45,43%). The main components of the essential oil are tetrahydrogeranilacetone (21,35%), nonane (12,63%), decanoic (9,82%) acids and dihydroactin diolide (5,40%).

Chemical Composition of the Twig Oil of Litsea mollis from China

2014 ◽  
Vol 997 ◽  
pp. 136-139
Author(s):  
Dong Hai Huang ◽  
Fa Song Wang ◽  
Yun He Li ◽  
Jia Gui Xiang
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Oxygenated Monoterpenes ◽  
Chromatography Mass Spectrometry ◽  
Sesquiterpene Hydrocarbons ◽  
Main Components ◽  
Type Apparatus

The essential oil from the twig of Litsea mollis was isolated using hydrodistillation in a Clevenger-type apparatus, and characterized by gas chromatography–mass spectrometry (GC-MS). A total of 39 compounds were identified, representing 89.27% of the oil. Among the twig oil compounds, oxygenated monoterpenes (39.06%) and sesquiterpene hydrocarbons (36.62%) were predominant (75.68% in total). Among the oxygenated monoterpenes, eucalyptol (9.9%), (R)-citronellol (7.23%), (R)-citronellal (7.0%), and (Z)-citral (5.03%) were the major compounds. Of the sesquiterpene hydrocarbons, β-caryophyllene (7.96%), (-)-α-panasinsene (6.31) and à-Caryophyllene (6.28%) were the main components.

scholarly journals Essential oil composition of Ocimum basilicum L. and Ocimum minimum L. in Turkey

2011 ◽  
Vol 20 (No. 6) ◽  
pp. 223-228 ◽  
Author(s):  
M. Özcan ◽  
J.-C. Chalchat
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Volatile Oil ◽  
Essential Oil Composition ◽  
Ocimum Basilicum ◽  
Methyl Eugenol ◽  
Geranyl Acetate ◽  
Oil Composition ◽  
Main Components

The constituents of essential oils isolated by hydrodistillation of the overground parts of Ocimum basilicum L. and Ocimum minimum L. from Turkey were examined by GC-MS. A total of 49 and 41 components, respectively, were identified accounting for 88.1% and 74.4% of the oils of O. basilicum and O. minimum, respectively. The oil of O. basilicum contained, as main components, methyl eugenol (78.02%), α-cubebene (6.17%), nerol (0.83%) and ε-muurolene (0.74%). Major compounds in the volatile oil of O. minimum were geranyl acetate (69.48%), terpinen-4-ol (2.35%) and octan-3-yl-acetate (0.72%). The essential oil of O. basilicum was characterised by its high content of methyl eugenol (78.02%), whereas the most important essential oil constituent of O. minimum was geranyl acetate (69.48%).    

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