Chemical Composition of the Essential Oil of Leaves and Roots of Ottoa oenanthoides (Apiaceae) from Mérida, Venezuela

Essential oils extracted by hydrodistillation from leaves and roots of Ottoa oenanthoides Kunth (Apiaceae) were analyzed by GC/MS. The oils, obtained in yields of 0.10% and 0.66%, respectively, each contained four compounds, which were identified from their mass spectra and retention indices (RI). The major compound identified was 2-methoxy-8-methyl-1,4-naphthalindione (59.9% leaves, and 62.8%, roots), followed by 7-methoxy-1-naphthol (18.3% leaves and 17.3% roots), 2-naphthalenol (18.6% leaves and 15.0% roots), and 3-methoxy-2-naphthalenol (3.1% leaves and 2.1% roots). To the best of our knowledge, this is the first time that naphthalene derivatives have been reported for any species of the Apiaceae family.

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Chemical Composition and Antibacterial Activity of the Essential Oil of Baccharis latifolia Pers. and B. Prunifolia H. B. &K. (Asteraceae)

Natural Product Communications ◽

10.1177/1934578x0700201211 ◽

2007 ◽

Vol 2 (12) ◽

pp. 1934578X0700201 ◽

Cited By ~ 1

Author(s):

Janne Rojas ◽

Judith Velasco ◽

Luis B. Rojas ◽

Tulia Díaz ◽

Juan Carmona ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Enterococcus Faecalis ◽

Mass Spectra ◽

Retention Indices ◽

Gram Positive ◽

Gram Positive Bacteria

The essential oils from leaves of Baccharis latifolia and B. prunifolia collected in January 2006 were analyzed by GC/MS. The yields of oils extracted by hydrodistillation were 0.27 and 0.29% for B. latifolia and B. prunifolia, respectively. Sixteen (B. latifolia) and twenty nine (B. prunifolia) components were identified by comparison of their mass spectra with the Wiley GC-MS Library data and by their retention indices (RI). The identified products may be divided into four different groups: monoterpenes (9.0% B. latifolia; 43.9% B. prunifolia), oxygenated monoterpenes (0.8% B. latifolia; 5.4% B. prunifolia), sesquiterpenes (20.4% B. latifolia; 45.9% B. prunifolia) and oxygenated sesquiterpenes (69.8% B. latifolia; 1.9% B. prunifolia). The oils showed antibacterial activity only against Gram positive bacteria, with MIC values for Staphylococcus aureus (ATCC 25923) of 80 μg/mL (B. latifolia) and Enterococcus faecalis (ATCC 29212) of 90 μg/mL and 260 μg/mL (B latifolia and B. prunifolia, respectively).

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Chemical composition of Rhododendron aureum (Gold rosebay) essential oil from Pribaikal'e (Russian Federation)

Journal of the Serbian Chemical Society ◽

10.2298/jsc1002209o ◽

2010 ◽

Vol 75 (2) ◽

pp. 209-215 ◽

Cited By ~ 7

Author(s):

Daniil Olennikov ◽

Lubov' Dudareva ◽

Semion Osipenko ◽

Tat'yana Penzina

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Russian Federation ◽

Mass Spectra ◽

Retention Indices ◽

Chromatographic Retention ◽

Irkutsk Region ◽

Chromatographic Retention Indices ◽

Rhododendron Aureum

The essential oils from five samples of leaves of Rhododendron aureum from the Irkutsk region, Pribaikal'e, Russian Federation, were isolated by hydrodistillation and analyzed by a combination of GC and GC/MS. Compounds representing 70.5-78.3 % of the oils were identified. Twenty-seven compounds were identified according to their chromatographic retention indices and mass spectra. The major components of the oils were calarene (10.4- -66.4 %), ?-bourbonene (0.5-27.4 %), ?-selinene (2.1-8.0 %) and kaur-16-ene (2.0-6.3 %). It was found that the chemical composition of Rh. aureum essential oil depends on the altitude of the growing plants.

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Chemical composition and antifungal activity of essential oils from four Asteraceae plants grown in Egypt

Zeitschrift für Naturforschung C ◽

10.1515/znc-2017-0219 ◽

2018 ◽

Vol 73 (7-8) ◽

pp. 313-318 ◽

Cited By ~ 4

Author(s):

Rose Vanessa Bandeira Reidel ◽

Simona Nardoni ◽

Francesca Mancianti ◽

Claudia Anedda ◽

Abd El-Nasser G. El Gendy ◽

...

Keyword(s):

Chemical Composition ◽

Antifungal Activity ◽

Essential Oil ◽

Essential Oils ◽

Inhibitory Activity ◽

First Time

Abstract The objective of the present paper was the assessment of the chemical composition of the essential oils from four Asteraceae species with a considerable food, medicinal, and agricultural value, collected in Egypt, together with their in vitro inhibitory activity against molds and yeasts. The essential oil of Launaea cornuta flowers was also evaluated for the first time, but because of its very low yield (<0.01%), no antifungal test was performed.

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Intraspecific Variability of the Essential Oil of Cladanthus mixtus from Morocco

Natural Product Communications ◽

10.1177/1934578x1400900137 ◽

2014 ◽

Vol 9 (1) ◽

pp. 1934578X1400900

Author(s):

Anass Elouaddari ◽

Abdelaziz El Amrani ◽

Jamal JamalEddine ◽

José G. Barroso ◽

Luis G. Pedro ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Intraspecific Variability ◽

Individual Plant ◽

Aerial Parts ◽

Plant Samples ◽

First Time

Air-dried aerial parts of wild Cladanthus mixtus were collected from two different regions of Morocco, Bouznika and Oujda, during 2011 and 2012. Forty individual plant samples were hydrodistilled using a Clevenger apparatus and the obtained essential oils were analyzed by GC and GC/MS. The yield obtained varies greatly with a range of 0.3 to 0.8%. The chemical composition of C. mixtus oils changes from one region to another. A total of 53 constituents were identified. To the best of our knowledge, two chemotypes were defined for the first time for this species in the regions studied. 2-Methyl-2- trans-butenyl methacrylate (32.8–35.2%) / ar-curcumene (13–14%) characterize the chemotypeof the C. mixtus plants from Bouznika, and trans-β-farnesene (35.5–50.3%) the chemotype from Oujda.

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Chemical Composition of the Essential Oils from Two Vietnamese Asarum Species: A. glabrum and A. cordifolium

Natural Product Communications ◽

10.1177/1934578x1300800227 ◽

2013 ◽

Vol 8 (2) ◽

pp. 1934578X1300800 ◽

Cited By ~ 1

Author(s):

Tran Huy Thai ◽

Ophélie Bazzali ◽

Tran Minh Hoi ◽

Nguyen Anh Tuan ◽

Félix Tomi ◽

...

Keyword(s):

Chemical Composition ◽

Nmr Spectroscopy ◽

Endangered Species ◽

Essential Oil ◽

Essential Oils ◽

Spectroscopic Techniques ◽

Red Data Book ◽

Data Book ◽

First Time ◽

C Nmr

The essential oil isolated from Asarum cordifolium C. E. C. Fischer recently discovered in Vietnam, and A. glabrum Merr., an endangered species listed as vulnerable in the Red Data Book of Vietnam, have been analyzed by a combination of chromatographic and spectroscopic techniques including 13C NMR spectroscopy. The composition of A. cordifolium essential oil, investigated for the first time, was dominated by elemicin (82.5%). The essential oil isolated from A. glabrum contained safrole (41.9%) as its major component and was characterized by the diversity of phenylpropanoids contained in this oil (10 compounds).

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Composition of Seed Essential Oils of Rhododendron tomentosum

Natural Product Communications ◽

10.1177/1934578x1200700229 ◽

2012 ◽

Vol 7 (2) ◽

pp. 1934578X1200700 ◽

Cited By ~ 2

Author(s):

Asta Judzentiene ◽

Rita Butkiene ◽

Jurga Budiene ◽

Félix Tomi ◽

Joseph Casanova

Keyword(s):

Quantitative Analysis ◽

Chemical Composition ◽

Nmr Spectroscopy ◽

Essential Oil ◽

Essential Oils ◽

Thermal Isomerization ◽

Total Oil ◽

First Time ◽

Rhododendron Tomentosum ◽

C Nmr

For the first time, the chemical composition of the seed essential oil of Rhododendron tomentosum was determined. Forty-seven compounds were identified, comprising 91.7% of the total oil. Palustrol (38.3%) and ledol (27.0%) were the predominant constituents. Some constituents, such as β-pinene oxide, iso-menthyl acetate, nerolidyl acetate, cadalene and guaiazulene were characteristic only for the seeds and were identified for the first time in Rh. tomentosum oils. For comparison purposes, the essential oil isolated from the shoots of the same plant were analyzed [GC(FID) in combination with RIs, GC-MS and 13C NMR]. More than a half of the oil was comprised of ledol (36.5%) and palustrol (21.0%). Quantitative analysis of ascaridol, a heat-sensitive compound, was carried out by 13C NMR spectroscopy. Indeed, ascaridol undergoes partial thermal isomerization to iso-ascaridol during GC analyses.

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Chemical Composition of Essential Oils from SixZanthoxylumSpecies and Their Repellent Activities against Two Stored-Product Insects

Journal of Chemistry ◽

10.1155/2017/1287362 ◽

2017 ◽

Vol 2017 ◽

pp. 1-7 ◽

Cited By ~ 4

Author(s):

Wen-Juan Zhang ◽

Zhe Zhang ◽

Zhen-Yang Chen ◽

Jun-Yu Liang ◽

Zhu-Feng Geng ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Tribolium Castaneum ◽

Relative Content ◽

Chemical Components ◽

Lasioderma Serricorne ◽

Time Data ◽

Significant Potential ◽

First Time

The objective of this study was to analyze six essential oils fromZanthoxylumgenus (family Rutaceae) in China and evaluate their repellent activities againstTribolium castaneumandLasioderma serricorneadults. Six essential oils fromZanthoxylumgenus, includingZ. armatum,Z. dimorphophyllum,Z. dimorphophyllumvar.spinifolium,Z. piasezkii,Z. stenophyllum,andZ. dissitum,were obtained by hydrodistillation and their yields were ranging from 0.02% to 0.53%. Totally, there were 39 chemical components revealed by GC-MS. Among them, some components with high relative content existed in more than threeZanthoxylumspecies. For instance, bothδ-cadinene (1.21%–17.15%) and spathulenol (0.36%–10.19%) appeared in essential oils ofZ. dimorphophyllum,Z. piasezkii,Z. stenophyllum,andZ. dissitumwhich were found to have higher content of sesquiterpenoids. The repellent activities of six essential oil samples againstT. castaneumandL. serricorneadults were investigated for the first time. Data demonstrated that sixZanthoxylumspecies had much stronger repellent activities againstT. castaneumthanL. serricorneadults, especially in 2 hours after exposure. The results indicate that these six essential oils fromZanthoxylumhave significant potential to be developed into natural repellents to control insects in grains, food, and traditional Chinese medicinal materials.

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Chemical composition of Thymus vulgaris L. (Thyme) essential oil from the Rio de Janeiro state, Brazil

Journal of the Serbian Chemical Society ◽

10.2298/jsc0803307p ◽

2008 ◽

Vol 73 (3) ◽

pp. 307-310 ◽

Cited By ~ 33

Author(s):

Alexandre Porte ◽

Ronoel Godoy

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Rio De Janeiro ◽

Mass Spectra ◽

Retention Indices ◽

Thymus Vulgaris ◽

Chromatographic Retention ◽

Thyme Essential Oil ◽

Chromatographic Retention Indices ◽

Janeiro State

The essential oil from fresh leaves of Thymus vulgaris L. from Rio de Janeiro State, Brazil, was isolated by hydrodistillation and analyzed through a combination of GC and GC/MS. Compounds representing 95.1 % of the oil were identified. Thirty-nine constituents were detected, of which twenty-eight were identified according to their chromatographic retention indices and mass spectra. The major constituents of the oil were thymol (44.7 %), p-cymene (18.6 %) and ?-terpinene (16.5%).

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Essential Oil From Psidium guajava Leaves: An Excellent Source of β-Caryophyllene

Natural Product Communications ◽

10.1177/1934578x19843007 ◽

2019 ◽

Vol 14 (5) ◽

pp. 1934578X1984300 ◽

Cited By ~ 1

Author(s):

Anam Arain ◽

Syed Tufail Hussain Sherazi ◽

Sarfaraz Ahmed Mahesar ◽

Sirajuddin

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Dry Weight ◽

Psidium Guajava ◽

Gas Chromatography Mass Spectrometry ◽

Medicinal Value ◽

First Time ◽

Excellent Source ◽

Chemical Class

The purpose of this study was to investigate the chemical composition of the essential oil extracted from Psidium guajava leaves and to explore the medicinal value of β-caryophyllene in pharmaceutical science. The essential oils of P. guajava leaves were extracted by the hydrodistillation method, using a Clevenger-type apparatus and the chemical composition of essential oils was investigated by gas chromatography–mass spectrometry. The yield of extracted essential oils was 0.6% (w/w) dry weight. The main compounds found in the leaves were β-caryophyllene (20.34%), globulol (8.20%), trans-nerolidol (7.72%), aromadendrene (4.34%), cis-α-bisabolene (3.82%), tetracosane (3.68%), octadecane (3.66%), Z, Z, Z-1,5,9,9-tetramethyl-1,4,7-cycloundecatriene (3.44%), β-bisabolene (3.41%), limonene (3.09%), octacosane (2.88%), δ-cadinene (2.52%), and 1,4-cadadiene (2.04%). The main chemical class of the essential oil was terpenoids, which represent 71.65%, followed by hydrocarbons (26.31%). A total of 50 components were identified, among these β-caryophyllene was found to be dominant, which has great medicinal value, and some other compounds were also identified for the first time in the essential oil of P. guajava leaves.

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Essential Oil Profile of Vietnamese Callicarpa candicans (Burm. f.) Hochr

Asian Journal of Chemistry ◽

10.14233/ajchem.2020.22435 ◽

2020 ◽

Vol 32 (7) ◽

pp. 1630-1634

Author(s):

Vu Thi Thu Le Vu Thi Thu Le ◽

Lai Phuong Phuong Thao ◽

Pham Thi Hong Minh ◽

Hoang Thi Bich ◽

Do Tien Lam ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Retention Indices ◽

Chemical Compositions ◽

Oil Performance

In this study, the essential oil profile of Callicarpa candicans (Burm. f.) Hochr was presented. Samples were collected from Vietnam and the oils were extracted from fresh leaves and dry leaves by hydrodistillation method. GC-MS data and retention indices were used to identify the chemical composition. The essential oil performance achieved 0.263% for fresh leaves and 1.503% for dry leaves. A total of 47 components were identified from fresh leaves oil and 39 constituents from dry leaves oil. Chemical compositions of the two essential oils were similar, with the major components being α-gurjunene, δ-cadinene, ε-caryophyllene (β-caryophyllene) and α-selinene.

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