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Isolation, chemical characterization, antimicrobial activity, and molecular docking studies of 2,6-dimethoxy benzoquinone isolated from medicinal plant Flacourtia jangomas

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Abstract

In the present investigation one compound, 2,6-dimethoxy benzoquinone (FJL-1), was isolated from the dichloromethane (DCM) fraction of the organic leaf extract of Flacourtia Jangomas for the first time. The compound structure was elucidated using extensive spectral analysis, including 1H, and 13C NMR. Furthermore, the DPPH and ABTS methods were used to evaluate the antioxidant activity of the organic extract, its fractions, and the isolated compound FJL-1. Antioxidant activity of the petroleum, ether, DCM, and methanol fractions of the organic extract and the isolated compound of F. Jangomas revealed moderate to strong radical scavenging ability. Additionally, the antimicrobial activity of FJL-1 against Staphylococcus aureus (MTCC 737 and MTCC 96 strains) was observed in an inhibition zone size of 21.6 ± 0.6 to 21.7 ± 0.58 mm showing potential inhibitory activity. The isolated compound FJL-1 shows excellent binding with the 2W9S proteins in terms of docking score compared with the drug Trimethoprim, which also exhibited similar types of interaction and potency against S. aureus. The leaves of F. jangomas can be considered a great source for the identification of numerous important phytoconstituents with potential uses in nutrition, aromatherapy, and the pharmaceutical sector.

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Acknowledgements

The authors are grateful to the institutional facilities and their support in writing this manuscript. The authors are thankful to Forest Research Institute (Deemed to be) University Dehradun (FRI) for providing the facilities for plant species identification.

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Correspondence to Santosh Kumar Rath.

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Tomar, R., Mishra, S.S., Sahoo, J. et al. Isolation, chemical characterization, antimicrobial activity, and molecular docking studies of 2,6-dimethoxy benzoquinone isolated from medicinal plant Flacourtia jangomas. 3 Biotech 14, 156 (2024). https://doi.org/10.1007/s13205-024-04002-w

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