Chemical Constituents of the Leaf Essential Oil of Vitex axillariflora (Merr.) Bramley from Vietnam

2022 ◽  
pp. 1-4
Author(s):  
Nguyen Huy Hung ◽  
Prabodh Satyal ◽  
Do Ngoc Dai ◽  
Le Thi Huong ◽  
Le Duc Giang ◽  
...  
Keyword(s):  
Essential Oil ◽  
Chemical Constituents ◽  
Leaf Essential Oil

Chemical Constituents of Leaf Essential Oil of Curcuma angustifolia Roxb. Growing in Eastern India

2016 ◽  
Vol 19 (6) ◽  
pp. 1527-1531 ◽  
Author(s):  
Sudipta Jena ◽  
Asit Ray ◽  
Ambika Sahoo ◽  
Basudeba Kar ◽  
Pratap Chandra Panda ◽  
...  
Keyword(s):  
Essential Oil ◽  
Chemical Constituents ◽  
Eastern India ◽  
Leaf Essential Oil

Chemical Constituents and Antimicrobial Activity of the Leaf Essential Oil of Garcinia kola Heckel (Clusiaceae) from Nigeria

2016 ◽  
Vol 13 (4) ◽  
pp. 1-7 ◽  
Author(s):  
Samuel Okhale ◽  
Chukkol Buba ◽  
Peters Oladosu ◽  
Henry Egharevba ◽  
Grace Ugbabe ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Garcinia Kola ◽  
Leaf Essential Oil ◽  
Garcinia Kola Heckel

scholarly journals Chemical constituents and antibacterial activity of the leaf essential oil of Feronia limonia

2010 ◽  
Vol 50 (S1) ◽  
pp. 70-73 ◽  
Author(s):  
A. Senthil Kumar ◽  
V. Venkatesalu ◽  
K. Kannathasan ◽  
M. Chandrasekaran
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Leaf Essential Oil

scholarly journals Analysis of Chemical Constituents of Tithonia Rotundifolia Leaf Essential Oil Found in Nigeria

2008 ◽  
Vol 3 (9) ◽  
pp. 1934578X0800300
Author(s):  
Adebayo A. Gbolade ◽  
Vânia Tira-Picos ◽  
J.M.F. Nogueira
Keyword(s):  
Essential Oil ◽  
Chemical Constituents ◽  
Oxygenated Monoterpenes ◽  
Monoterpene Hydrocarbons ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Leaf Essential Oil ◽  
Total Oil ◽  
First Time

The essential oil from Tithonia rotundifolia leaf growing wild in Osun State, Nigeria obtained by hydro-distillation has been characterised for the first time by combined GC and GC-MS analyses. Forty-six components representing 93.8% of the total oil have been fully identified. The oil is characterised largely by sesquiterpene hydrocarbons (78.1%), represented chiefly by germacrene D (33%) and β-caryophyllene (25.8%). The less important classes of components are monoterpene hydrocarbons (5.1%), oxygenated monoterpenes (0.3%), oxygenated sesquiterpenes (3.1%) and non-terpenes (7.2%).

CHEMICAL CONSTITUENTS AND ESSENTIAL OIL ANALYSIS FROM THE LEAVES OF PIPER BETLE L. VARIETY DESI

INDIAN DRUGS ◽  
2018 ◽  
Vol 55 (06) ◽  
pp. 14-20
Author(s):  
S Sultana ◽  
◽  
M. Ali ◽  
S. R Mir ◽  
Keyword(s):  
Essential Oil ◽  
Caffeic Acid ◽  
Methanolic Extract ◽  
Chemical Constituents ◽  
Piper Betle ◽  
Spectroscopic Methods ◽  
Oil Analysis ◽  
Phytochemical Investigation ◽  
Leaf Essential Oil ◽  
First Time

Piper betle L. (Piperaceae) is used in traditional medicinal diseases. Our study was planned to isolate chemical constituents from the leaves of P. betle variety desi and to characterized their structures. Phytochemical investigation of the methanolic extract of the leaves of P. betle variety desi led to isolate n-nonyl benzene (1-phenylnonane, 1), 4′-phenyl butanoxy n-hexanoate (4′-phenyl butanoxy caproate, 2), caffeic acid (3),1′-phenoloxy 5′α-hydroxyltetradecane (4) and 5-prop-2a-enyl-4,4′-(2′′α-arachidyloxy-3′′α-hydroxypropyl)-bispyrocatechol (1′′, 2′′-dihydro-2′′α-arachidyloxy-3′′α-hydroxybischavicol, 5). The structures of these phytoconstituents, isolated from this variety of P. betle for the first time, were established by spectroscopic methods and chemical constituents. The leaf essential oil was characterized by high percentage of farnesol (41.13%), acetyl eugenol (26.40%), valencene (6.34%), α - amorphene (3.43%), γ - cadinene (3.56%), isovanillin (2.27%), eugenol (1.21%), cadina-1,4-dione (1.77%) and α - bisabolene (1.15%).

scholarly journals Chemical Composition, Antibacterial, and Anti-Inflammatory Activities of Essential Oils from Flower, Leaf, and Stem of Rhynchanthus beesianus

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Qi Chen ◽  
Xiaoge Zhao ◽  
Tingya Lu ◽  
Yao Yang ◽  
Yi Hong ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Chemical Constituents ◽  
Bornyl Acetate ◽  
Edible Plant ◽  
Leaf Essential Oil ◽  
Application Potential ◽  
Anti Inflammatory ◽  
Main Components ◽  
Factor Α

Rhynchanthus beesianus is a medicinal, ornamental, and edible plant, and its essential oil has been used as an aromatic stomachic in China. In this study, the chemical constituents, antibacterial, and anti-inflammatory properties of flower essential oil (F-EO), leaf essential oil (L-EO), and stem essential oil (S-EO) of R. beesianus were investigated for the first time. According to the GC-FID/MS assay, the F-EO was mainly composed of bornyl formate (21.7%), 1,8-cineole (21.6%), borneol (9.7%), methyleugenol (7.7%), β-myrcene (5.4%), limonene (4.7%), camphene (4.5%), linalool (3.4%), and α-pinene (3.1%). The predominant components of L-EO were bornyl formate (33.9%), borneol (13.2%), 1,8-cineole (12.1%), methyleugenol (8.0%), camphene (7.8%), bornyl acetate (6.2%), and α-pinene (4.3%). The main components of S-EO were borneol (22.5%), 1,8-cineole (21.3%), methyleugenol (14.6%), bornyl formate (11.6%), and bornyl acetate (3.9%). For the bioactivities, the F-EO, L-EO, and S-EO exhibited significant antibacterial property against Bacillus subtilis, Enterococcus faecalis, Staphylococcus aureus, Proteus vulgaris, Pseudomonas aeruginosa, and Escherichia coli with the inhibition zones (7.28–9.69 mm), MIC (3.13–12.50 mg/mL), and MBC (6.25–12.50 mg/mL). Besides, the F-EO, L-EO, and S-EO significantly inhibited the production of proinflammatory mediator nitric oxide (NO) (93.15–94.72%) and cytokines interleukin-6 (IL-6) (23.99–77.81%) and tumor necrosis factor-α (TNF-α) (17.69–24.93%) in LPS-stimulated RAW264.7 cells at the dose of 128 μg/mL in the absence of cytotoxicity. Hence, the essential oils of R. beesianus flower, leaf, and stem could be used as natural antibacterial and anti-inflammatory agents with a high application potential in the pharmaceutical and cosmetic fields.

scholarly journals Antimicrobial activity of the essential oils from the leaves and stems of Amomum rubidumLamxay & N. S. Lý

2021 ◽  
Vol 20 (1) ◽  
pp. 81-89
Author(s):  
Le T Huong ◽  
◽  
Nguyen T Viet ◽  
Ly N Sam ◽  
Cao N Giang ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Essential Oil ◽  
Essential Oils ◽  
National Park ◽  
Chemical Constituents ◽  
Chemical Compositions ◽  
Leaf Essential Oil ◽  
Microdilution Broth ◽  
Susceptibility Assay

This paper described the chemical compositions and antimicrobial activity of the essential oils from the leaves and stem of Amomum rubidumLamxay & N. S. Lý, collected from Bidoup Nui Ba National Park, Lam Dong, Vietnam. The essential oils were obtained by hydrodisitllation method while antimicrobial activity was evaluetd by microdilution broth susceptibility assay. The main constituents of the leaf essential oil were identified as 1,8-cineole (37.7%), -3-carene (19.5%) and limonene (16.3%) while -3-carene (21.9%), limonene (17.8%) and β-phellandrene (14.6%) dominated in the stem essentialoil. The leaf and stem essential oils displayed stronger inhibition of Pseudomonas aeruginosawith MIC of 25 μg/mLand 50 μg/mLrespectively. The stem essential oil was active against Candida albicans(MIC, 50 μg/mL) while both essential oils inhibited the growth of Fusarium oxysporum(MIC 50 μg/mL). This is the first report on chemical constituents and antimicrobial activity of the essential oils of A. rubidum.

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