Chemical Composition, in vitro Trypanocidal and Antibacterial Activities of the Essential Oil from the Dried Leaves of Eugenia dysenterica DC from Brazil

The chemical composition of the essential oils obtained from two samples (GP1 and GP2) of Grammosciadium platycarpum Boiss. was analyzed by GC and GC-MS. The analysis of the oils resulted in the identification of twenty-two constituents. Linalool (79.0% - GP1, 81.8% - GP2) and limonene (10.0%, 5.8%) were found to be the major components, respectively. The in vitro antibacterial activities of these oils and their main compounds against seven Gram-positive and Gram-negative bacteria were investigated. The results exhibited that the total oils and their major components possess strong to moderate activities against all the tested bacteria except for Pseudomonas aeruginosa.

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The chemical composition of the essential oil and the antibacterial activities of the essential oil and methanol extract of Teucrium montanum

Journal of the Serbian Chemical Society ◽

10.2298/jsc0803299v ◽

2008 ◽

Vol 73 (3) ◽

pp. 299-305 ◽

Cited By ~ 10

Author(s):

Nenad Vukovic ◽

Tanja Milosevic ◽

Slobodan Sukdolak ◽

Slavica Solujic

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Methanol Extract ◽

Bacterial Species ◽

Antibacterial Activities ◽

Diffusion Method ◽

Disc Diffusion ◽

Inhibitory Effects ◽

Disc Diffusion Method

This study was designed to examine the chemical composition of the essential oil and the in vitro antibacterial activities of the essential oil and methanol extract of Teucrium montanum. The inhibitory effects of the essential oil and the methanol extracts of Teucrium montanum were tested against thirteen bacterial species using the disc-diffusion method. GC/MS analyses revealed that the essential oil contained mainly sesquiterpenes, such as ?-cadinene (17.19 %), ?-selinene (8.16 %) and ?-calacorene (4.97 %). The highest activities were obtained with the essential oil of Teucrium montanum against K. pneumoniae, B. subtilis, B. mycoides, E. cloaceae and A. chlorococcum. In addition, comparison of the antibacterial activities of the essential oil and the methanol extract showed that the essential oil exhibited the stronger antibacterial activities.

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The chemical composition of essential oil and in vitro antibacterial activities of essential oil and methanol extract of Ziziphora persica Bunge

Journal of Ethnopharmacology ◽

10.1016/j.jep.2006.01.014 ◽

2006 ◽

Vol 106 (3) ◽

pp. 372-376 ◽

Cited By ~ 35

Author(s):

Suzan Ozturk ◽

Sezai Ercisli

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Methanol Extract ◽

Antibacterial Activities

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Medicinal Plants: Antibacterial Effects and Chemical Composition of Essential Oil of Foeniculum vulgare

International Journal of Current Pharmaceutical Review and Research ◽

10.25258/ijcprr.v8i01.9082 ◽

2017 ◽

Vol 8 (01) ◽

Cited By ~ 2

Author(s):

Azadeh Foroughi ◽

Pouya Pournaghi ◽

Fariba Najafi ◽

Akram Zangeneh ◽

Mohammad Mahdi Zangeneh ◽

...

Keyword(s):

Chemical Composition ◽

Medicinal Plants ◽

Essential Oil ◽

Antibacterial Properties ◽

Screen Test ◽

Antibacterial Activities ◽

Gas Chromatography Mass Spectrometry ◽

Resistant Bacteria ◽

Antibacterial Effects ◽

Foeniculum Vulgare

Medicinal plants are considered modern resources for producing agents that could act as alternatives to antibiotics in demeanor of antibiotic-resistant bacteria. The aim of the study was to evaluate the chemical composition and antibacterial activities of essential oil of Foeniculum vulgare (FV) against Pseudomonas aeruginosa and Bacillus subtilis. Gas chromatography mass spectrometry was done to specify chemical composion. As a screen test to detect antibacterial properties of the essential oil, agar disk and agar well diffusion methods were employed. Macrobroth tube test was performed to determinate MIC. The results indicated that the most substance found in FV essential oil was Trans-anethole (47.41 %), also the essential oil of FV with 0.007 g/ml concentration has prevented P. aeruginosa and with 0.002 g/ml concentration has prevented B. subtilis from the growth. Thus, the research represents the antibacterial effects of the medical herb on test P. aeruginosa and B. subtilis. We believe that the article provide support to the antibacterial properties of the essential oil. The results indicate the fact that the essential oil from the plant can be useful as medicinal or preservatives composition.

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Comparative Analysis of In-Vitro Biological Activities of Methyl Eugenol Rich Cymbopogon khasianus Hack., Leaf Essential Oil with Pure Methyl Eugenol Compound

Current Pharmaceutical Biotechnology ◽

10.2174/1389201021666200217113921 ◽

2020 ◽

Vol 21 (10) ◽

pp. 927-938 ◽

Cited By ~ 7

Author(s):

Roktim Gogoi ◽

Rikraj Loying ◽

Neelav Sarma ◽

Twahira Begum ◽

Sudin K. Pandey ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Biological Activities ◽

Methyl Eugenol ◽

Dpph Assay ◽

Pure Compound ◽

Allium Cepa Assay ◽

Anti Inflammatory ◽

Lemongrass Essential Oil

Background: The essential oil of methyl eugenol rich Cymbopogon khasianus Hack. was evaluated and its bioactivities were compared with pure methyl eugenol. So far, methyl eugenol rich essential oil of lemongrass was not studied for any biological activities; hence, the present study was conducted. Objective: This study examined the chemical composition of essential oil of methyl eugenol rich Cymbopogon khasianus Hack., and evaluated its antioxidant, anti-inflammatory, antimicrobial, and herbicidal properties and genotoxicity, which were compared with pure compound, methyl eugenol. Material and Methods: Methyl eugenol rich variety of Cymbopogon khasianus Hack., with registration no. INGR18037 (c.v. Jor Lab L-9) was collected from experimental farm CSIR-NEIST, Jorhat, Assam (26.7378°N, 94.1570°E). The essential oil wasobtained by hydro-distillation using a Clevenger apparatus. The chemical composition of the essential oil was evaluated using GC/MS analysis and its antioxidant (DPPH assay, reducing power assay), anti-inflammatory (Egg albumin denaturation assay), and antimicrobial (Disc diffusion assay, MIC) properties, seed germination effect and genotoxicity (Allium cepa assay) were studied and compared with pure Methyl Eugenol compound (ME). Results: Major components detected in the Essential Oil (EO) through Gas chromatography/mass spectroscopy analysis were methyl eugenol (73.17%) and β-myrcene (8.58%). A total of 35components were detected with a total identified area percentage of 98.34%. DPPH assay revealed considerable antioxidant activity of methyl eugenol rich lemongrass essential oil (IC50= 2.263 μg/mL), which is lower than standard ascorbic acid (IC50 2.58 μg/mL), and higher than standard Methyl Eugenol (ME) (IC50 2.253 μg/mL). Methyl eugenol rich lemongrass EO showed IC50 38.00 μg/mL, ME 36.44 μg/mL, and sodium diclofenac 22.76 μg/mL, in in-vitro anti-inflammatory test. Moderate antimicrobial activity towards the 8 tested microbes was shown by methyl eugenol rich lemongrass essential oil whose effectiveness against the microbes was less as compared to pure ME standard. Seed germination assay further revealed the herbicidal properties of methyl eugenol rich essential oil. Moreover, Allium cepa assay revealed moderate genotoxicity of the essential oil. Conclusion: This paper compared the antioxidant, anti-inflammatory, antimicrobial, genotoxicity and herbicidal activities of methyl eugenol rich lemongrass with pure methyl eugenol. This methyl eugenol rich lemongrass variety can be used as an alternative of methyl eugenol pure compound. Hence, the essential oil of this variety has the potential of developing cost-effective, easily available antioxidative/ antimicrobial drugs but its use should be under the safety range of methyl eugenol and needs further clinical trials.

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Chemical Composition, In Vitro and In Silico Antioxidant Potential of Melissa officinalis subsp. officinalis Essential Oil

Antioxidants ◽

10.3390/antiox10071081 ◽

2021 ◽

Vol 10 (7) ◽

pp. 1081

Author(s):

Matilda Rădulescu ◽

Călin Jianu ◽

Alexandra Teodora Lukinich-Gruia ◽

Marius Mioc ◽

Alexandra Mioc ◽

...

Keyword(s):

Antioxidant Activity ◽

Chemical Composition ◽

Essential Oil ◽

In Silico ◽

Antioxidant Properties ◽

Radical Scavenging ◽

Inhibitory Effect ◽

Melissa Officinalis ◽

Β Carotene

The investigation aimed to study the in vitro and in silico antioxidant properties of Melissa officinalis subsp. officinalis essential oil (MOEO). The chemical composition of MOEO was determined using GC–MS analysis. Among 36 compounds identified in MOEO, the main were beta-cubebene (27.66%), beta-caryophyllene (27.41%), alpha-cadinene (4.72%), caryophyllene oxide (4.09%), and alpha-cadinol (4.07%), respectively. In vitro antioxidant properties of MOEO have been studied in 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical scavenging, and inhibition of β-carotene bleaching assays. The half-maximal inhibitory concentration (IC50) for the radical scavenging abilities of ABTS and DPPH were 1.225 ± 0.011 μg/mL and 14.015 ± 0.027 μg/mL, respectively, demonstrating good antioxidant activity. Moreover, MOEO exhibited a strong inhibitory effect (94.031 ± 0.082%) in the β-carotene bleaching assay by neutralizing hydroperoxides, responsible for the oxidation of highly unsaturated β-carotene. Furthermore, molecular docking showed that the MOEO components could exert an in vitro antioxidant activity through xanthine oxidoreductase inhibition. The most active structures are minor MOEO components (approximately 6%), among which the highest affinity for the target protein belongs to carvacrol.

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Chemical composition, in vitro antitumor and pro-oxidant activities of Glandora rosmarinifolia (Boraginaceae) essential oil

PLoS ONE ◽

10.1371/journal.pone.0196947 ◽

2018 ◽

Vol 13 (5) ◽

pp. e0196947 ◽

Cited By ~ 14

Author(s):

Paola Poma ◽

Manuela Labbozzetta ◽

Monica Notarbartolo ◽

Maurizio Bruno ◽

Antonella Maggio ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil

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Chemical composition, antioxidant activities and antibacterial activities of essential oil from Erythrina caffra Thunb. growing in South Africa

Heliyon ◽

10.1016/j.heliyon.2021.e07244 ◽

2021 ◽

pp. e07244

Author(s):

Olubunmi A. Wintola ◽

Aderonke A. Olajuyigbe ◽

Anthony J. Afolayan ◽

Roger M. Coopoosamy ◽

Olufunmiso O. Olajuyigbe

Keyword(s):

South Africa ◽

Chemical Composition ◽

Essential Oil ◽

Antioxidant Activities ◽

Antibacterial Activities

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Chemical Composition, Antioxidant and Antibacterial Activities of Essential Oil From Cymbopogon densiflorus (Steud.) Stapf Flowers

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2020.1862711 ◽

2021 ◽

Vol 24 (1) ◽

pp. 40-52

Author(s):

Paula V.D. Spencer ◽

Silvia H. Libardi ◽

Fernanda F.G. Dias ◽

Wellington da S. Oliveira ◽

Ronaldo L. Thomasini ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Antibacterial Activities

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ANTIBACTERIAL AND ANTIOXIDANT ACTIVITIES OF STEM BARK ESSENTIAL OIL CONSTITUENTS OF LITSEA GLUTINOSA C. B. ROB.

International Journal of Pharmacy and Pharmaceutical Sciences ◽

10.22159/ijpps.2016v8i12.13577 ◽

2016 ◽

Vol 8 (12) ◽

pp. 258

Author(s):

Arunodaya H. S. ◽

Krishna V. ◽

Shashikumar R. ◽

Girish Kumar K.

Keyword(s):

Antibacterial Activity ◽

Chemical Composition ◽

Essential Oil ◽

Stem Bark ◽

Diffusion Method ◽

Vibrio Cholera ◽

Litsea Glutinosa ◽

Β Carotene ◽

Mic Value

Objective: To evaluate the chemical composition, antibacterial and antioxidant properties of stem bark essential oil of Litsea glutinosa C. B. Rob.Methods: The essential oil isolated from stem bark of L. glutinosa and their chemical composition was analyzed by gas chromatography coupled with mass spectrometry detector. The in vitro antibacterial activity of the stem bark essential oil was investigated against eight human pathogenic bacterial clinical isolates using agar disc diffusion method and MIC value was determined by modified resazurin microtitre-plate assay. The antioxidant activity of essential oil was measured by 2, 2-diphenyl-1-picrylhydrazyl radical (DPPH), 2, 2-azinobis-3-ethylbenzothiazoline-6-sulphonate radical cation (ABTS) and β-carotene bleaching assay.Results: GC-MS analysis of stem bark essential oil resulted in the identification of 37 compounds, off which 9,12-octadecadienoic acid (62.57%), hexadecanoic acid (12.68%), stigmast-5-en-3-ol (6.87%) and vitamin E (2.51%) were the main constituents representing 84.63% of the oil. The determination of in vitro antibacterial activity of stem bark essential oil resulted in significant inhibition zone (15.00±0.57 mm) and MIC value (0.15±0.15×10-2 mg/ml) against the pathogenic bacteria Vibrio cholera followed by Pseudomonas aeruginosa and Salmonella typhi. The results of DPPH radical scavenging (IC50:4.540±0.06 µg/ml), ABTS (IC50:256.02±0.06 µg/ml) and β-carotene bleaching assay (%I: 78.51±0.42 %) showed significant in vitro antioxidant property.Conclusion: L. glutinosa stem bark essential oil showed potential antibacterial activity against the Vibrio cholera. The results of this investigation supported the ethnomedical claim of essential oil as a demulcent, antidiarrheal and antioxidant drug.

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