scholarly journals Antifungal Activity and Chemical Constituents of the Essential Oil from Leaves of Nectandra longifolia (Ruiz & Pav.) Nees.

2016 ◽  
Vol 12 (1) ◽  
pp. 66-73
Author(s):  
Daniel Plazas-Jiménez ◽  
Victor Enrique Macias-Villamizar ◽  
Ericsson Coy-Barrera
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Essential Oil ◽  
Growth Inhibition ◽  
Mycelial Growth ◽  
Steam Distillation ◽  
Chemical Constituents ◽  
Main Components ◽  
Available Information ◽  
Dose Dependent

“Yellow moena” (Nectandra longifolia: Lauraceae) is a fragrant leaves-possessing plant commonly used for timber purposes. Nevertheless, so far, there is not available information about its chemical composition. Thus, in the present work is described the components of the essential oil from N. longifolia leaves. The oil was extracted by steam distillation and analyzed by GC/FID  and GC/MS. Twenty eight compounds were therefore identified. The main components were found to be terpinen-4-ol (53.1%), α-terpinene (6.8%), α-phellandrene (4.5%), and β-pinene (3.8%). The chemical composition of essential oil from N. longifolia leaves was consequently in agreement to that of several neotropical Lauraceae plants. In addition, the oil exhibited good antifungal activity against F. oxysporum through dose-dependent mycelial growth inhibition (using amended media and fumigant assays).

scholarly journals Chemical composition and insecticidal activity of Cymbopogon citratus essential oil from Cuba and Brazil against housefly

2015 ◽  
Vol 24 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Zeneida Teixeira Pinto ◽  
Félix Fernández Sánchez ◽  
Arith Ramos dos Santos ◽  
Ana Claudia Fernandes Amaral ◽  
José Luiz Pinto Ferreira ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Morphological Changes ◽  
Chemical Characterization ◽  
Composition Analysis ◽  
Cymbopogon Citratus ◽  
Newly Hatched Larvae ◽  
Main Components ◽  
Dose Dependent

Essential oil of Cymbopogon citratus collected from Brazil and Cuba was tested to a chemical characterization and then was tested on the post-embryonic development of Musca domestica. The chemical composition analysis by GC-MS of the oils from Brazil/Cuba allowed the identification of 13 and 12 major constituents respectively; nine of them common to both. In the both oils, the main components were the isomers geranial and neral, which together form the compound citral. This corresponds to a total of 97.92%/Brazil and 97.69%/Cuba of the compounds identified. The monoterpene myrcene, observed only in the sample of Cuba, presented a large relative abundance (6.52%). The essential oil of C. citratus (Brazil/Cuba) was dissolved in DMSO and tested at concentrations of 5, 10, 25, 50, 75 and 100% and citral was prepared by mixing 16.8 mg with 960 µL DMSO. Both essential oils and monoterpene citral were applied topically to newly-hatched larvae (1µL/larva). The results showed a lethal concentration (LC50) of 4.25 and 3.24% for the Brazilian and Cuban essential oils, respectively. Mortalities of larval and newly-hatched larvae to adult periods were dose-dependent for the two both oils as for monoterpene citral, reaching 90%. Both essential oils and citral caused morphological changes in adult specimens.

scholarly journals Antifungal activity of Helichrysum italicum (Roth) G. Don (Asteraceae) essential oil against fungi isolated from cultural heritage objects

2014 ◽  
Vol 66 (4) ◽  
pp. 1539-1545 ◽  
Author(s):  
Milos Stupar ◽  
Milica Ljaljevic-Grbic ◽  
Ana Dzamic ◽  
Nikola Unkovic ◽  
Mihailo Ristic ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Aspergillus Niger ◽  
Essential Oil ◽  
Cultural Heritage ◽  
Essential Oils ◽  
Trichoderma Viride ◽  
Alternative Methods ◽  
Main Components ◽  
Cultural Heritage Objects

There is considerable interest in the use of essential oils as alternative methods to control micromycetes from cultural heritage objects. We investigated the chemical composition and antifungal activity of the essential oil of Helichrysum italicum. The main components of the oil were ?-curcumene (22.45%), ?-pinene (15.91 %) and neryl acetate (7.85 %). H. italicum essential oil showed moderate antifungal activity against fungi isolated from cultural heritage objects. The most susceptible fungi to oil treatment were Epicoccum nigrum and Penicillium sp., while the most resistant was Trichoderma viride. The H. italicum essential oil showed demelanizing activity against Aspergillus niger.

scholarly journals CHEMICAL COMPOSITION OF HELICHRYSUM ARENARIUM AND HELICHRYSUM NOGAICUM ESSENTIAL OILS, GROWING IN THE ASTRAKHAN REGION

2018 ◽  
pp. 99-104
Author(s):  
Adelya Sametovna Baimukhambetova ◽  
Lyudmila Timofeyevna Sukhenko ◽  
Anatoliy Valeriyevich Velikorodov ◽  
Mikhail Alekseyevich Egorov ◽  
Gabriele Capodaglio
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Carboxylic Acids ◽  
Steam Distillation ◽  
Gas Liquid Chromatography ◽  
Medical Plant ◽  
Main Components ◽  
Asteraceae Family ◽  
Essential Oil Yield

Plants of Helichrysum genus belong to Asteraceae family and abound with species. The’re two species of plants of Helichrysum genus in the Astrakhan region – Helichrysum arenarium Moench and Hеlichrisum nogaicum Zvelev that was discovered later and isn’t studied well enough yet. Helichrysum arenarium is a well-known medical plant widely used in both academic and traditional medicine and included into the State Pharmacopoeia. Inflorescences of Helichrysum arenarium produce cholagogic, hemostatic, detoxicating, laxative, anti-inflammatory and diuretic effects, which is due to content of flavonoids, terpenoids and other components. This works shows results of studies of chemical composition of extracted essential oils of Hеlichrisum nogaicum and Helichrysum arenarium growing in the Astrakhan Region. Samples of essential oils of plants under studies have been obtained by steam distillation. Optimal steam distillation process duration has been determined by experiment taking studies of dynamics of essential oil yield change through time as a ground. Quantitative analysis of main components of Helichrysum arenarium and Hеlichrisum nogaicum essential oils has been carried out by gas-liquid chromatography. It has been identified that Helichrysum arenarium essential oil contains 21 substances. Its main components are camphor (14.59%) and carboxylic acids (37.02%), and 1,8-cineole (5.97%). The main components of the oil Helichrisum nogaicum are camphor (38.33%), borneol (14.21%), cineol-1.8 (11.37%) and terpene-4-ol (5.18%), sesquiterpene compounds (6.28%), and the content of carboxylic acids is insignificant and amounts to 6.58%.

scholarly journals Chemical Composition and Antifungal Activity of Lavender (Lavandula stoechas) Oil

2018 ◽  
Vol 13 (7) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Mehmet Musa Özcan ◽  
Mira Starovic ◽  
Goran Aleksic ◽  
Gilles Figueredo ◽  
Fahad Al Juhaimi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Alternaria Alternata ◽  
Mycelial Growth ◽  
Inhibitory Effect ◽  
Inhibitory Effects ◽  
Linalyl Acetate ◽  
Lavandula Stoechas

The essential oil of Lavandula stoechas was examined by GC and GC-MS. Discs (5 mmi.d.) of the tested fungi ( Alternaria alternata, Fusarium oxysporum and Botritys cinerea) were inoculated separately onto each assay plate and incubated at 25oC for 7 days. The oil yield of dried parts (v/dw) obtained by hydro-distillation was 2.9%. Thirty-two compounds representing 98.3% of the essential oil were determined. Linalool (49.9%), linalyl acetate (14.4%), lavandulyl acetate (5.7%), α-terpineol (5.6%), terpinene-4-ol (5.1%), lavandulol (3.7%), ( E)-β-ocimene (2.6%) and ( Z)-β-ocimene (2.4%) were identified as the main constituents of the oil. In addition, both doses of the lavender oil showed varying levels of inhibitory effects on the mycelial growth of tested fungi used in the experiment. The results demonstrated the strongest effect on B.cinerea, followed by A.alternata and F.oxysporum. The inhibitory effect is probably dependent on the concentration of essential oils.

scholarly journals Chemical Composition and Antimicrobial Activities of the Essential Oil From the Leaves of Pterocephalus hookeri

2020 ◽  
Vol 15 (12) ◽  
pp. 1934578X2098123
Author(s):  
Peng-fei Yang ◽  
Hui Lu ◽  
Qiong-bo Wang ◽  
Zhi-wei Zhao ◽  
Qiang Liu ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Flame Ionization ◽  
And Staphylococcus Aureus ◽  
Antimicrobial Assay ◽  
Detailed Chemical

Detailed chemical constituents of essential oil from the Pterocephalus hookeri leaves and its antimicrobial activities were investigated in this study. The essential oil, obtained by hydrodistillation, was characterized by gas chromatography-flame ionization detection and gas chromatography-mass spectrometry analyses. Among the 90 identified compounds, hexadecanoic acid (21.27%), phytol (8.03%), furfural (7.08%), oleic acid (5.25%), and phytone (4.56%) were the major components. In the antimicrobial assay, the essential oil showed strong inhibitory activities against Escherichia coli, Candida albicans, and Staphylococcus aureus with minimum inhibitory concentration values of 31.3, 62.5, and 125 µg/mL, respectively. To our knowledge, this is the first report concerning chemical composition and antimicrobial activities of the essential oil from Pterocephalus hookeri.

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oil from Flowers of Eryngium triquetrum (Apiaceae) Collected Wild in Sicily

2016 ◽  
Vol 11 (7) ◽  
pp. 1934578X1601100
Author(s):  
Simona Casiglia ◽  
Maurizio Bruno ◽  
Sergio Rosselli ◽  
Felice Senatore
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Art Works ◽  
Main Components ◽  
Antibacterial And Antifungal ◽  
Historical Art

The chemical composition of the essential oil from flowers of Eringium triquetrum Vahl. collected in Sicily was evaluated by GC and GC-MS. The main components were pulegone (50.6%), piperitenone (30.5%) and menthone (7.0%). Comparison of this oil with other studied oils of Eringium species is discussed. The oil showed good antibacterial and antifungal activities against some microorganisms that infest historical art works.

Chemical Composition, ModerateIn VitroAntibacterial and Antifungal Activity of the Essential Oil ofPistacia veraL. and it’s Major Constituents

2008 ◽  
Vol 11 (4) ◽  
pp. 376-383 ◽  
Author(s):  
F. Kalalinia ◽  
J. Behravan ◽  
M. Ramezani ◽  
M.K. Hassanzadeh ◽  
A. Asadipour
Keyword(s):  
Chemical Composition ◽  
Antifungal Activity ◽  
Essential Oil
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