The genus Jacaranda (Bignoniaceae) consists of approximately 50 species, J. cuspidifolia being one member of this genus cultivated all over the world. However, there were no investigations concerning the essential oil composition and antimicrobial activity of the leaves of J. cuspidifolia plant. This study analyzes the chemical composition and biological activity of the essential oil isolated from the leaves of J. cuspidifolia for the first time. The essential oil was obtained by hydrodistillation and investigated by gas chromatography–mass spectrometry (GC-MS) method. The antimicrobial activity of this essential oil against Escherichia coli, Staphylococcus aureus and Candida albicans microbes was tested by the disc diffusion method. Twenty-seven compounds were identified and dominated by linolenic acid (21.52%), followed by (6Z,9Z)-pentadecadien-1-ol (18.03%), geranyl linaloo (11.92%), 9Z,12Z,15Z-octadecatrienoic acid methyl ester (5.57%), 2-butyl-5-hexyloctahydro-1H-Indene (4.56%), octadecenoic acid (3.52%), octadecyl methacrylate (3.35%) and dibutyl phthalate (3.33%). The assay of antimicrobial activity revealed the maximum inhibition zone radii of 8.42, 7.64 and 7.82 mm and the corresponding minimum inhibition concentration (MIC) values of 12.3, 15.9 and 15.4 mg/mL, respectively. Thus, the essential oil of J. cuspidifolia showed potent antimicrobial activity and potential high selectivity against E. coli, S. aureus and C. albicans species.
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Qu, Y., Wang, S., Zhou, H. et al. Essential Oil Composition and Antimicrobial Activity of Jacaranda cuspidifolia Leaves. Pharm Chem J 56, 679–682 (2022). https://doi.org/10.1007/s11094-022-02694-z
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DOI: https://doi.org/10.1007/s11094-022-02694-z