Chemical Composition and Biological Activities of Santiria trimera (Burseraceae) Essential Oils from Gabon

Water-distilled essential oils from leaves and bark of Santiria trimera (Oliv.) Aubrév. (Burseraceae) collected in Gabon were analyzed using capillary GC-FID and GC-MS. The leaf essential oil, which is described for the first time, was dominated by sesquiterpenes (76.5%), among which α-humulene (34.6%) and β-caryophyllene (14.9%) were the major components. The bark essential oil was almost exclusively monoterpenic, with α-pinene (51.5%) and α-terpineol (16.8%) as main constituents. The antimicrobial activities of both essential oils were tested against eight Gram-positive and three Gram-negative bacteria by using agar disc diffusion and broth microdilution methods; anticandidal effect was also tested on different strains of Candida albica. The Gram-negative bacteria were the less sensitive to the leaf essential oil, which was effective against Bacillus cereus and Enterococcus faecalis. The bark essential oil was more active and, in particular, exhibited significant antimicrobial activity against Proteus mirabilis, which was resistant to the leaf oil. A weak anticandidal effect of both essential oils was observed.

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Juglans Regia and J. nigra, Two Trees Important in Traditional Medicine: A Comparison of Leaf Essential Oil Compositions and Biological Activities

Natural Product Communications ◽

10.1177/1934578x1300801038 ◽

2013 ◽

Vol 8 (10) ◽

pp. 1934578X1300801 ◽

Cited By ~ 7

Author(s):

Prajwal Paudel ◽

Prabodh Satyal ◽

Noura S. Dosoky ◽

Samjhana Maharjan ◽

William N. Setzer

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Aromatic Compounds ◽

Methyl Salicylate ◽

Fungal Infections ◽

Biological Activities ◽

Juglans Regia ◽

Germacrene D ◽

Leaf Oil ◽

Leaf Essential Oil

The essential oils from the leaves of Juglans regia, collected from Kathmandu, Nepal, and Juglans nigra from Huntsville, Alabama, USA, were obtained by hydrodistillation and analyzed by GC-MS. A total of 69 compounds were identified in the J. regia oil, accounting for 99.0% of the eluting components of the oil while three different samples of J. nigra were analyzed identifying a total of 99.3%, 99.4% and 99.7% of the oils. The leaf essential oil of J. regia was dominated by the aromatic compounds eugenol (27.5%) and methyl salicylate (16.2%), and the sesquiterpenes germacrene D (21.4%) and ( E)-β-farnesene (8.2%). The essential oils from three different samples of J. nigra contained ( E)-caryophyllene (17.3%–20.4%) and germacrene D (7.1%–22.5%) with smaller amounts of juglone (1.0%–8.8%), α-hydrojuglone (1.0–9.5%), and δ-cadinene (3.8%–8.7%). J. regia leaf oil, devoid of juglone, showed allelopathic activity, while J. nigra leaf oil was less phytotoxic. The presence of eugenol and methyl salicylate in the leaves of J. regia are consistent with the traditional uses of this plant to treat toothache, rheumatism, and fungal infections.

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Chemical Composition and Antioxidant and Antimicrobial Activities of Wormwood (Artemisia absinthiumL.) Essential Oils and Phenolics

Journal of Chemistry ◽

10.1155/2015/804658 ◽

2015 ◽

Vol 2015 ◽

pp. 1-12 ◽

Cited By ~ 35

Author(s):

Kamel Msaada ◽

Nidhal Salem ◽

Olfa Bachrouch ◽

Slim Bousselmi ◽

Sonia Tammar ◽

...

Keyword(s):

Gas Chromatography ◽

Essential Oil ◽

Essential Oils ◽

Methanolic Extract ◽

Biological Activities ◽

Reducing Power ◽

Antimicrobial Activities ◽

Gas Chromatography Mass Spectrometry ◽

Oil Composition ◽

Antioxidant And Antimicrobial Activities

The aim of this study was to determine the chemical variability of wormwood extracts as affected by the growing region. Antioxidant and antimicrobial activities were also investigated. The essential oil composition variability ofA. absinthiumL. aerial parts collected from four different Tunisian regions was assessed by gas chromatography (GC/FID) and by gas chromatography mass spectrometry (GC/MS). In addition, total polyphenols, flavonoids, and condensed tannins as well as antioxidant, antibacterial, and antifungal activities of methanolic extract and essential oils were undertaken. Chromatographic analysis of wormwood essential oils showed the predominance of monoterpene hydrocarbons represented mainly by chamazulene. RP-HPLC analysis of wormwood methanolic extract revealed the predominance of phenolic acids. Antiradical activity was region-dependant and the methanolic extract of Bou Salem region has the strongest activity (CI50=9.38±0.82 µg/mL). Concerning the reducing power, the methanolic extract of Bou Salem, Jérissa, and Boukornine regions was more active than the positive control. Obtained results of antimicrobial activities showed that wormwood essential oil is endowed with important antibacterial activity which was strongly related to the organoleptic quality of oil which appeared strongly region-dependant.A. absinthiumL. EOs investigated are quite interesting from a pharmaceutical standpoint because of their biological activities.

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Synergistic Effects of Essential Oils of Ammoides verticillata and Satureja candidissima Against Many Pathogenic Microorganisms

Anti-Infective Agents ◽

10.2174/2211352517666190227161811 ◽

2020 ◽

Vol 18 (1) ◽

pp. 72-78 ◽

Cited By ~ 3

Author(s):

Fatima Benyoucef ◽

Mohammed El Amine Dib ◽

Boufeldja Tabti ◽

Arrar Zoheir ◽

Jean Costa ◽

...

Keyword(s):

Antimicrobial Activity ◽

Essential Oil ◽

Essential Oils ◽

Synergistic Effects ◽

Lactobacillus Rhamnosus ◽

Salmonella Typhi ◽

Antimicrobial Activities ◽

Bacterial Strains ◽

Gram Negative ◽

Ammoides Verticillata

Background: Antibiotic resistance is today one of the most serious threats to global health, food security and development. Due to the growing number of infections, treatment becomes more difficult, if not impossible, because of the loss of antibiotic efficacy. Objective: In the present investigation, the chemical composition of essential oils of Ammoides verticillata and Satureja candidissima and their synergistic effects on antimicrobial activities were investigated. Methods: The chemical composition of the essential oil was analyzed by Gas Chromatography (GC) and Gas Chromatography-Mass Spectroscopy (GC/MS). The antimicrobial activity of the essential oils was investigated using dilution-agar method against nine bacterial strains three Gram-negative Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and Salmonella typhi (ATCC 14028), and six Gram-positive: Staphylococcus aureus (ATCC 43300,) Clostridium sporogenes (ATCC 19404), Bacillus subtilis (ATCC 6633), Enterococcus faecalis (ATCC 7314), Lactobacillus rhamnosus (ATCC 53103) and Bacillus cereus (ATCC 14579). Results: The essential oil of A. verticillata was characterized principally by carvacrol (44,3%), Limonene (19,3%) and p-cymene (19,2%). The constituents identified of S. candidissima essential oil were principally oxygenated monoterpenes represented by pulegone (70,4%). The essential oil of A. verticillata had a good antimicrobial activity against four bacterial strains (Escherichia coli, Salmonella typhi, Lactobacillus rhamnosus and Bacillus cereus) with MIC and MBC values between 0.2-0.4 µl/ml and 0.2-6.2 µl/ml, respectively. While, S. candidissima essential oil had moderate antimicrobial activities against all strains with MIC and MBC values between 1.5-6.2 µl/ml and 6.2-12.5 µl/ml, respectively. The results of antimicrobial activity of essential oils blend presented higher antimicrobial activity against all tested bacteria with MIC and MBC values between 0.3-1.5 µl/ml and 0.4-6.2 µl/ml, respectively. Conclusion: The essential oils blend presented high antimicrobial activity compared to virgin oils. This activity can be due to the association of active compounds such as carvacrol and pulegone. These findings provide a new source of drugs that may help in therapy to lead to the development of a new treatment based on a combination of these essential oils against gram-negative and gram-positive bacteria that continue to pose a threat to public health.

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Antibacterial Activity and Chemical Composition of the Essential Oil of Grammosciadium platycarpum Boiss. from Iran

Zeitschrift für Naturforschung C ◽

10.1515/znc-2005-1-206 ◽

2005 ◽

Vol 60 (1-2) ◽

pp. 30-34 ◽

Cited By ~ 26

Author(s):

Ali Sonboli ◽

Fereshteh Eftekhar ◽

Morteza Yousefzadi ◽

Mohammad Reza Kanani

Keyword(s):

Pseudomonas Aeruginosa ◽

Antibacterial Activity ◽

Chemical Composition ◽

Essential Oil ◽

Essential Oils ◽

Antibacterial Activities ◽

Gram Negative Bacteria ◽

Gram Negative ◽

Two Samples

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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Composition of Essential Oils from Leaves and Flowers of Stachys Germanica Subsp. Salviifolia (Ten.) Gams (Labiatae) and Related Secretory Structures

Natural Product Communications ◽

10.1177/1934578x0900400618 ◽

2009 ◽

Vol 4 (6) ◽

pp. 1934578X0900400 ◽

Cited By ~ 4

Author(s):

Claudia Giuliani ◽

Roberto Maria Pellegrino ◽

Bruno Tirillini ◽

Laura Maleci Bini

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Glandular Trichomes ◽

Secretory Structures ◽

Epidermal Surface ◽

Germacrene D ◽

Different Types ◽

Leaf Oil ◽

Leaf Essential Oil ◽

First Time

The essential oils from both leaves (L) and flowers (F) of Stachys germanica subsp. salviifolia (Ten.) Gams (Labiatae/Lamiaceae) from Italy were analyzed by GC-MS for the first time. The distribution, morphology and histochemistry of the different types of glandular trichomes present on the epidermal surface were also determined. Twenty-nine constituents, representing 89.4% of the total leaf oil, and forty-one compounds, forming 97.8% of the total flower oil, were identified. Germacrene D (39.4%), phytol (10.2%), β-bourbonene (3.5%) and β-ylangene (3.3%) were recognized as the main constituents of the leaf essential oil, while limonene (24.1%), β-pinene (18.7%), germacrene D (12.8%) and ( E)-nerolidol (6.6%) were the main compounds of the flower essential oil.

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Composition, in vitro Anti-inflammatory, Antioxidant and Antimicrobial Activities of the Leaf Essential Oil of Machilus konishii from Taiwan

Natural Product Communications ◽

10.1177/1934578x1601100944 ◽

2016 ◽

Vol 11 (9) ◽

pp. 1934578X1601100

Author(s):

Yu-Chang Su ◽

Kuan-Ping Hsu ◽

Chen-Lung Ho

Keyword(s):

Essential Oil ◽

Antimicrobial Activities ◽

Raw 264.7 ◽

Nitric Oxide Production ◽

Leaf Oil ◽

Leaf Essential Oil ◽

Anti Inflammatory ◽

Main Components ◽

Antioxidant And Antimicrobial Activities

The chemical composition and in vitro anti-inflammatory, antioxidant and antimicrobial activities of the leaf essential oil of Machilus konishii has been investigated. The essential oil was isolated using hydrodistillation in a Clevenger-type apparatus, and characterized by GC–FID and GC–MS. Sixty-six compounds were identified, representing 100% of the oil. The main components identified were α-pinene (33.9%), β-pinene (13.9%), and thymol (12.0%). The leaf oil was able to reduce nitric oxide production by lipopolysaccharide-activated murine macrophages RAW 264.7 without reducing the cell viability. In addition, the leaf oil showed strong antioxidant and antimicrobial activities. The major ingredient of the oil that was responsible for the anti-inflammatory, antioxidant and antimicrobial activities was thymol.

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

Natural Product Communications ◽

10.1177/1934578x1200700234 ◽

2012 ◽

Vol 7 (2) ◽

pp. 1934578X1200700 ◽

Cited By ~ 2

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.

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Chemical Composition and Antimicrobial Activities of Artemisia argyi Lévl. et Vant Essential Oils Extracted by Simultaneous Distillation-Extraction, Subcritical Extraction and Hydrodistillation

Molecules ◽

10.3390/molecules24030483 ◽

2019 ◽

Vol 24 (3) ◽

pp. 483 ◽

Cited By ~ 11

Author(s):

Xiao Guan ◽

Depeng Ge ◽

Sen Li ◽

Kai Huang ◽

Jing Liu ◽

...

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Salmonella Enteritidis ◽

Antimicrobial Activities ◽

Inhibitory Effect ◽

Gas Chromatography Mass Spectrometry ◽

High Yield ◽

Agar Disc ◽

Artemisia Argyi ◽

Simultaneous Distillation Extraction

Artemisia argyi Lévl. et Vant essential oil could be used as a good antimicrobial flavouring agent and applied in the food industry. In this study, three methods, including simultaneous distillation-extraction (SDE), subcritical extraction and hydrodistillation, were applied to extract A. argyi essential oil. Compared with subcritical extraction (1%) and hydrodistillation (0.5%), SDE gave a higher yield (1.2%). Components of the essential oils were analysed with gas chromatography-mass spectrometry (GC-MS), and the most abundant ingredients were caryophyllene oxide, neointermedeol, borneol, α-thujone and β-caryophyllene. These five components accounted for 82.93%, 40.90% and 40.33% for SDE, subcritical extraction, and hydrodistillation, respectively. Based on agar disc diffusion and minimum inhibitory concentration (MIC) assays, SDE oil showed a significant inhibitory effect towards Listeria monocytogenes, Escherichia coli, Proteus vulgaris, Salmonella enteritidis and Aspergillus niger. Furthermore, electron microscope observations (SEM) confirmed that SDE oil could obviously deform cell morphology and destroy the structure of cell walls. Performances showed that SDE was a promising process for extracting A. argyi essential oil with both high yield and antimicrobial activity.

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

Natural Product Communications ◽

10.1177/1934578x1100600228 ◽

2011 ◽

Vol 6 (2) ◽

pp. 1934578X1100600 ◽

Cited By ~ 2

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.

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

Natural Product Communications ◽

10.1177/1934578x0900400823 ◽

2009 ◽

Vol 4 (8) ◽

pp. 1934578X0900400 ◽

Cited By ~ 1

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.

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