scholarly journals Chemical Composition and Insecticidal Properties of Essential Oils of Piper septuplinervium and P. subtomentosum (Piperaceae)

2014 ◽  
Vol 9 (10) ◽  
pp. 1934578X1400901
Author(s):  
Mónica Constanza Ávila Murillo ◽  
Luis Enrique Cuca Suarez ◽  
Jairo Alonso Cerón Salamanca
Keyword(s):  
Statistical Analysis ◽  
Essential Oils ◽  
Insecticidal Activity ◽  
Spodoptera Frugiperda ◽  
Insect Pests ◽  
Pearson Correlation ◽  
Oil Composition ◽  
Aerial Parts ◽  
Leaf Oil ◽  
Main Component

Essential oils of Piper subtomentosum (leaves and inflorescences) and Piper septuplinervium (aerial parts) were analyzed by GC-MS; sixty-three compounds were determined, representing 92.0%, 86.9 %, and 91.8 % of the total relative oil composition of the leaves, inflorescences, and aerial parts, respectively. The most abundant component in the aerial parts and inflorescence oils was α-pinene (27.3%, 21.0%, respectively), and δ-cadinene was the main component of the leaf oil. Insecticidal activity of the essential oils were determined on the Spodoptera frugiperda second instar larvae; the essential oil from the aerial parts of P. septuplinervium was the most active against insect pests (LC50= 9.4 μL/L of air). Statistical analysis by direct Pearson correlation showed that the insecticidal activity of the essential oils was primarily due to camphene and α- and β-pinene. The effect of the oils on the insect life cycle was also evaluated, and in some cases, a delay in growth and inhibition of the oviposition in the females were observed.

scholarly journals Essential Oil Chemical Composition and Headspace Volatiles Profile of Achillea coarctata from Serbia

2016 ◽  
Vol 11 (4) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Ivana R. Kostevski ◽  
Goran M. Petrović ◽  
Gordana S. Stojanović ◽  
Jelena G. Stamenković ◽  
Bojan K Zlatković
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Headspace Volatiles ◽  
Aerial Parts ◽  
Germacrene D ◽  
Leaf Oil ◽  
Stems And Leaves

This study reports the essential oil composition and headspace volatiles profile of Achillea coarctata Poir. from Serbia. The inflorescences, stems and leaves, and the aerial parts of A. coarctata were analyzed separately. Germacrene D, α-terpineol and 1,8-cineole were the main constituents of the aerial parts essential oil; 1,8-cineole, cis-cadin-4-en-7-ol and α-terpineol were the most dominant compounds in the inflorescence essential oil, while the most abundant components in the stem and leaf oil were germacrene D, cis-cadin-4-en-7-ol and ledol. The percentages of monoterpenoids and sesquiterpenoids in the aerial parts were the same, while there were differences in distribution of these compound classes in inflorescence and stem and leaf essential oils. The major components of the headspace volatiles were the same for aerial parts, inflorescence and stem and leaves: 1,8-cineole, β-pinene and α-pinene.

scholarly journals Comparative evaluation of the essential oil terpenoids in the stem and leaf of Ziziphora clinopodioides in the regions of Almeh and Sojough of Golestan province, Iran

2012 ◽  
pp. 283-291 ◽  
Author(s):  
Pouneh Ebrahimi ◽  
Akram Mirarab-Razi ◽  
Abbas Biabani
Keyword(s):  
Essential Oil ◽  
Comparative Evaluation ◽  
Genetic Factors ◽  
Oil Composition ◽  
Flowering Stage ◽  
Microwave Assisted ◽  
Oxygenated Monoterpenes ◽  
Aerial Parts ◽  
Leaf Oil ◽  
Golestan Province

Microwave-assisted hydrodistillation was used to isolate essential oil from the leaf and stem of Ziziphora clinopodioides collected in the flowering stage on two locations, Almeh and Sojogh, of the Golestan Province (Iran), in June of 2009. The total contents of monoterpene and sesquiterpene fractions (52.45% and 1.08%, respectively) in the leaf oil of Almeh plants were higher than those of Sojogh (46.64% and 0.12%, respectively). The essential oil of the stem of the plants from Sojogh was characterized by the presence of eight oxygenated monoterpenes (22.17%), while four oxygenated monoterpenes (11.15%), one monterpene hydrocarbon (2.71%), and one oxygenated sesquiterpene (0.21%) were found in the plants from the region of Almeh. The analysis of the essential oil of dried aerial parts showed the presence of oxygenated monoterpenes pulegone and menthol (the region of Sojogh) and pulegone, 1,8-cineol, D-neoisomenthol and chrysanthenone (the region of Almeh), as the main constituents. Also, chrysanthenone (9.75%), found as the second major component of the leaf of Z. clinopodioides of Almeh, was not identified as the oil component of the other region. The results obtained on the chemical composition of Z. clinopodioides oil of two regions from the Golestan Province revealed that in general, that there are some differences in the major components and their relative concentrations. This may be probably due to the different environmental and genetic factors, different chemotypes and the nutritional status of the plants, as well as other factors that can influence the oil composition.

scholarly journals Composition and Chemical Variability of Ivoirian Xylopia staudtii Leaf Oil

2015 ◽  
Vol 10 (6) ◽  
pp. 1934578X1501000
Author(s):  
Thierry Acafou Yapi ◽  
Jean Brice Boti ◽  
Antoine Coffy Ahibo ◽  
Sylvain Sutour ◽  
Ange Bighelli ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Nmr Spectroscopy ◽  
Essential Oils ◽  
Oil Composition ◽  
Chemical Variability ◽  
Germacrene D ◽  
Leaf Oil ◽  
Nmr Techniques ◽  
C Nmr

The chemical composition of a leaf oil sample from Ivoirian Xylopia staudtii Engler & Diels (Annonaceae) has been investigated by a combination of chromatographic [GC(RI)] and spectroscopic (GC-MS, 13C NMR) techniques. Thirty-five components that accounted for 91.8% of the whole composition have been identified. The oil composition was dominated by the furanoguaiadienes furanoguaia-1,4-diene (39.0%) and furanoguaia-1,3-diene (7.5%), and by germacrene D (17.5%). The composition of twelve other leaf oil samples demonstrated qualitative homogeneity, but quantitative variability. Indeed, the contents of the major components varied substantially: furanoguaia-1,4-diene (24.7–51.7%) and germacrene D (5.9–24.8%). The composition of X. staudtii leaf oil is close to that of X. rubescens leaf oil but varied drastically from those of the essential oils isolated from other Xylopia species. 13C NMR spectroscopy appeared as a powerful and complementary tool for analysis of sesquiterpene-rich essential oils.

scholarly journals Essential oil Composition of Ficus Benjamina (Moraceae)and Irvingia Barteri (Irvingiaceae)

2012 ◽  
Vol 7 (12) ◽  
pp. 1934578X1200701 ◽  
Author(s):  
Isiaka A. Ogunwande ◽  
Razaq Jimoh ◽  
Adedoyin A. Ajetunmobi ◽  
Nudewhenu O. Avoseh ◽  
Guido Flamini
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Ficus Benjamina ◽  
Germacrene D ◽  
Leaf Oil

Essential oils obtained by hydrodistillation of leaves of two Nigerian species were analyzed for their constituents by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The leaf oil of Ficus benjamina L. (Moraceae), collected during the day, contained high contents of α-pinene (13.9%), abietadiene (9.7%), cis-α-bisabolene (8.2%) and germacrene-D-4-ol (8.4%), while the night sample was dominated by germacrene-D-4-ol (31.5%), 1,10-di- epi-cubenol (8.8%) and hexahydrofarnesylacetone (8.3%). This could be a possible indication of differences in emissions of volatiles by F. benjamina during the day and night. The main compounds of Irvingia barteri Hook. f. (Irvingiaceae) were β-caryophyllene (17.0%), (E)-α-ionone (10.0%), geranial (7.6%), (E)-β-ionone (6.6%) and β-gurjunene (5.1%).

scholarly journals Essential Oil Composition and Antibacterial Activity of Monticalia greenmaniana (Asteraceae)

2012 ◽  
Vol 7 (2) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
José Cárdenas ◽  
Janne Rojas ◽  
Luís Rojas-Fermin ◽  
María Lucena ◽  
Alexis Buitrago
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Mass Spectra ◽  
Essential Oil Composition ◽  
Gram Negative Bacteria ◽  
Oil Composition ◽  
Aerial Parts ◽  
Germacrene D ◽  
Leaf Oil ◽  
Leaf Essential Oil

The essential oils from fresh aerial parts of Monticalia greenmaniana (Hieron) C. Jeffrey (Asteraceae) collected in March, were analyzed by GC/MS. Oil yields (w/v) of 0.1% (flowers), 0.07%, (stems) and 0.1% (leaves) were obtained by hydrodistillation. Thirteen, sixteen and eighteen components, respectively, were identified by comparison of their mass spectra with those in the Wiley GC-MS Library data base. The major components of the flower and stem oils were 1-nonane (38.8% flowers; 33.5% stems), α-pinene (29.0% flowers; 14.8% stems) and germacrene D (15.6% flowers; 18.6% stems). However, in the leaf oil, germacrene D was observed at 50.7%, followed by β-cedrene at 8.4 %. The leaf essential oil showed a broad spectrum of antibacterial activity against the important human pathogenic Gram-positive and Gram-negative bacteria Staphylococcus aureus (ATCC 25923), Enterococcus faecalis (ATCC 19433), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and Klebsiella pneumoniae (ATCC 25955) with MIC values ranging from 75 to 6000 ppm.

scholarly journals Essential Oil Composition of Prasium majus from Croatia

2012 ◽  
Vol 7 (7) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Igor Jerković ◽  
Marko Šuste ◽  
Željan Maleš ◽  
Kroata Hazler Pilepić
Keyword(s):  
Fatty Acids ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Aliphatic Alcohols ◽  
Enoic Acid ◽  
Hexadecanoic Acid ◽  
Oil Composition ◽  
Aerial Parts

The essential oils from the aerial parts of Prasium majus L., collected during two years in Croatia, were analysed by GC and GC/MS. Fifty-two compounds were identified, representing 90.3–91.8% of the total oils. The major constituents in both samples were fatty acids (particularly hexadecanoic acid and ( Z)-octadec-9-enoic acid), lower aliphatic alcohols, aldehydes and acids (major ones oct-1-en-3-ol and ( E,E)-hepta-2,4-dienal) and phenylpropane derivatives (e.g. eugenol). β-Caryophyllene was the most abundant terpene and ( E)-β-ionone was the major norisoprenoid.

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oils of Leaves, Roots and Bark of Glossocalyx staudtii

2009 ◽  
Vol 4 (8) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Huguette Agnaniet ◽  
Thomas Makani ◽  
Raphaël Bikanga ◽  
Louis Clément Obame ◽  
Jacques Lebibi ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Disc Diffusion ◽  
Aliphatic Compounds ◽  
Gram Positive Bacteria ◽  
Agar Disc ◽  
Leaf Oil ◽  
Main Component

The chemical composition of the essential oils obtained by hydrodistillation from air dried leaves, bark and roots of Glossocalyx staudtii Engl. grown in Gabon was analyzed by GC and GC-MS. The essential oil content was 0.84% (w/w), 0.28% (w/w), and 0.74% (w/w), respectively. The leaf oil was characterized by a high content of monoterpene hydrocarbons (64.8%), with β-pinene (30.6%) and α-pinene (22.6%) as the major constituents. The oil obtained from the bark contained 30.5% of oxygenated monoterpenes with cryptone as the main constituent (11.5%) and 28.9% of aliphatic compounds, with 9.3% of 2-tridecanone; in the roots oil, the main component was 2-tridecanone (55.2%). The antimicrobial activity of the oils was studied by means of the agar disc diffusion and broth microdilution methods. The Gram positive bacteria were the most sensitive to the essential oils. A significant anticandidal effect of the bark essential oil was observed.

scholarly journals Determination of Chemical Constituents of Leaf and Stem Essential Oils of Artemisia monosperma from Central Saudi Arabia

2012 ◽  
Vol 7 (8) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Merajuddin Khan ◽  
Ahmad A. Mousa ◽  
Kodakandla V. Syamasundar ◽  
Hamad Z. Alkhathlan
Keyword(s):  
Gas Chromatography ◽  
Saudi Arabia ◽  
Essential Oils ◽  
Literature Search ◽  
Chemical Constituents ◽  
Oil Composition ◽  
Desert Region ◽  
Leaf Oil ◽  
Qualitative Similarity

The leaf and stem essential oils of Artemisia monosperma from the desert region of central Saudi Arabia were analysed by gas chromatography-based techniques (GC–FID, GC–MS, Co-GC, LRI determination, database and literature search) using polar as well as non-polar columns, which resulted in the identification of 130 components, of which 81 were common to both oils. In the leaf oil 120 compounds were identified, while 91 were identified in the stem oil accounting for 98.4% and 99.7% of the oil composition, respectively. The major constituents of the leaf oil were β-pinene (50.3%), α-terpinolene (10.0%), limonene (5.4%) and α-pinene (4.6%), while the major constituents of the stem oil were β-pinene (36.7%), α-terpinolene (6.4%), limonene (4.8%), β-maaliene (3.7%), shyobunone (3.2%) and α-pinene (3.1%). The two oils showed an important qualitative similarity. However, some specific constituents (39 in the leaf oil and 10 in the stem oil) allow differentiation of the two essential oils.

Variation in Australian populations of Halfordia kendack s.l. (Rutaceae): evidence from leaf essential oils

2004 ◽  
Vol 17 (6) ◽  
pp. 571 ◽  
Author(s):  
Paul I. Forster ◽  
Joseph J. Brophy ◽  
Robert J. Goldsack
Keyword(s):  
Essential Oils ◽  
Species Distribution ◽  
Methyl Eugenol ◽  
The Other ◽  
Oil Composition ◽  
Altitudinal Range ◽  
Leaf Oil ◽  
Variable Species ◽  
Low Altitude

The leaf oils of Halfordia kendack (Montrouz.) Guillaumin s.l. from locations throughout its range in Australia were investigated to ascertain if the disjunct nature of the species' distribution affected their composition and whether any variation detected supported the recognition of a second species (H. scleroxyla F.Muell.). While three groups of populations could be classified on the basis of leaf oil composition, these groups were not associated with geographic locality or altitudinal range and habitat. It was found that plants from low altitude sites in north Queensland all produced leaf oils that contained the aromatic ethers methyl eugenol and elemicin in variable amounts, included in an otherwise terpenoid oil. Plants from the other three areas examined; north Queensland montane sites, south-east Queensland low altitude and south-east Queensland montane sites, all produced leaf oils which were terpenoid in nature and contained no aromatic ethers. This lack of correlation in leaf oil composition with locality or habitat would lend support to the proposition that Halfordia exists in only one variable species in Australia.

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