Constituents and Antibacterial Activity of Essential Oil of Nyctanthes arbor-tristis Flower

In this study, the composition and antibacterial activity of essential oil from the flower of Nyctanthes arbor-tristis were determined. The extraction was carried out utilizing the microwave-assisted extraction technique with a short extraction time of 60 min, yielding 0.342% (w/w). Separation and c...

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Bibliographic Details
Published in:Journal of analytical chemistry (New York, N.Y.) N.Y.), 2024-09, Vol.79 (9), p.1345-1351
Main Authors: Sattar, Tayyaba, Intisar, Azeem, Kousar, Rehana, Ramzan, Arooj, Niazi, Abdul Rehman Khan, Qadir, Muhammad Abdul, Ahmed, Ejaz, Ferdosi, Malik Fiaz Hussain, Abid, Muhammad Amin
Format: Article
Language:English
Subjects:
Analytical Chemistry
Antiinfectives and antibacterials
Benzaldehyde
Chemistry
Chemistry and Materials Science
Constituents
E coli
Essential oils
Ethanol
Furfural
Gas chromatography
Klebsiella
Phenylethyl alcohol
Spectrometry
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Summary:In this study, the composition and antibacterial activity of essential oil from the flower of Nyctanthes arbor-tristis were determined. The extraction was carried out utilizing the microwave-assisted extraction technique with a short extraction time of 60 min, yielding 0.342% (w/w). Separation and characterization were performed by gas chromatography-mass spectrometric analysis, identifying a total of 34 constituents, including major compounds: phenyl ethyl alcohol (26.1%), eucarvone (18.7%), furfural (10.7%), benzaldehyde (4.8%), phytol (4.7%), and methyl hexadecanoate (3.1%). In the next step, an agar disk diffusion assay was performed to assess the antimicrobial activity of the oil against four different bacterial strains, namely Staphylococcus aureus , Klebsiella pneumoniae , Escherichia coli , and Pseudomonas aeruginosa , resulting in zones of inhibition measuring 9, 12, 11, and 9 mm, respectively. However, the broth macrodilution method was carried out against Staphylococcus aureus and Klebsiella pneumoniae , revealing minimum inhibitory concentrations of 2.5 and 5 mg/mL, respectively.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934824700710