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Preliminary phytochemical profiling and in vitro antibacterial activity of Lycium edgeworthii (Solanaceae) leaf extract against multidrug-resistant bacterial pathogens
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  • Published: 13 April 2026

Preliminary phytochemical profiling and in vitro antibacterial activity of Lycium edgeworthii (Solanaceae) leaf extract against multidrug-resistant bacterial pathogens

  • Sachin Kumar1,
  • Pooja Kadyan1,
  • Guddu Kumar Gupta2,
  • Sudhir Kumar Kataria1,
  • Mukul Machhindra Barwant3 &
  • …
  • Usman Mohammed Ali4 

Scientific Reports (2026) Cite this article

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We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors present which affect the content, and all legal disclaimers apply.

Subjects

  • Biochemistry
  • Biological techniques
  • Biotechnology
  • Drug discovery
  • Microbiology
  • Plant sciences

Abstract

The escalating global crisis of antimicrobial resistance (AMR) necessitates the urgent discovery of novel therapeutic agents from underexplored plant sources. The genus Lycium (Solanaceae) is renowned for its rich phytochemistry, yet Lycium edgeworthii Dunal remains scientifically unexplored. This study presents the first comprehensive phytochemical profiling and antibacterial evaluation of L. edgeworthii leaf ethanolic extract against clinically relevant multidrug-resistant (MDR) bacterial pathogens. The extract was prepared via Soxhlet extraction (yield: 8.7% w/w) and subjected to qualitative phytochemical screening using standard protocols. Antibacterial activity was evaluated against Gram-positive (Staphylococcus aureus MTCC 96, Bacillus subtilis MTCC 121) and Gram-negative (Escherichia coli MTCC 443, Pseudomonas aeruginosa MTCC 424) bacteria using agar well diffusion and resazurin-based microdilution broth assays to determine zones of inhibition (ZOI) and minimum inhibitory concentrations (MICs). Phytochemical analysis confirmed the presence of alkaloids, flavonoids, terpenoids, saponins, coumarins, and glycosides. The extract exhibited significant, dose-dependent antibacterial activity. In the well diffusion assay, the largest inhibition zone was observed against P. aeruginosa (12.3 ± 0.6 mm at 100 mg/mL). However, MIC determination revealed greater efficacy against S. aureus (MIC = 0.39 mg/mL) and E. coli (MIC = 0.78 mg/mL), with higher MICs for P. aeruginosa and B. subtilis (1.56 mg/mL). This discrepancy between ZOI and MIC highlights the importance of employing complementary assays and suggests differential compound diffusion properties. The ethanolic leaf extract of L. edgeworthii possesses a diverse phytochemical profile and demonstrates significant, broad-spectrum antibacterial activity in vitro. Its notable efficacy against MDR pathogens, particularly S. aureus and E. coli, validates its ethnobotanical potential and positions it as a promising candidate for bioassay-guided isolation of novel antimicrobial leads. Future studies should focus on compound characterization, mechanistic investigations, and cytotoxicity evaluation.

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Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Authors and Affiliations

  1. Department of Zoology, Maharshi Dayanand University, Rohtak, Haryana, 124001, India

    Sachin Kumar, Pooja Kadyan & Sudhir Kumar Kataria

  2. Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana, 124001, India

    Guddu Kumar Gupta

  3. Department of Botany, Sanjivani Rural Education Society’s, Sanjivani Arts Commerce and Science College, Kopargaon, Maharashtra, 423603, India

    Mukul Machhindra Barwant

  4. ⁴Department of Plant Sciences, Faculty of Agriculture, Wollega University, Shambu, Oromia, Ethiopia

    Usman Mohammed Ali

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Contributions

Sachin Kumar: Writing - Original Draft, Validation, Investigation. Pooja Kadyan: Software, Formal analysis, Funding acquisition. Guddu Kumar Gupta: Methodology, Formal analysis, Data curation, Conceptualization, Writing - Original Draft. Sudhir Kumar Kataria: Supervision, Resources. Mukul Machhindra Barwant: Conceptualization, Methodology, Software, Resources, Writing - Review & Editing. Usman Mohammed Ali: Formal analysis, Writing - Review & Editing, Validation, Supervision. All authors reviewed and approved the final manuscript.

Corresponding author

Correspondence to Usman Mohammed Ali.

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The authors declare no competing interests.

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Not applicable. This study did not involve any human participants or animals. The plant material was collected from its natural habitat, and no endangered or protected species were involved.

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Not applicable. This study did not involve human participants.

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Not applicable. This manuscript does not contain any individual person’s data in any form.

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Kumar, S., Kadyan, P., Gupta, G.K. et al. Preliminary phytochemical profiling and in vitro antibacterial activity of Lycium edgeworthii (Solanaceae) leaf extract against multidrug-resistant bacterial pathogens. Sci Rep (2026). https://doi.org/10.1038/s41598-026-45882-7

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  • Received: 27 December 2025

  • Accepted: 23 March 2026

  • Published: 13 April 2026

  • DOI: https://doi.org/10.1038/s41598-026-45882-7

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Keywords

  • Antibacterial activity
  • Lycium edgeworthii
  • Minimum inhibitory concentration
  • Multidrug-resistant bacteria
  • Phytochemical screening
  • Solanaceae
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