Comparative Antibacterial Activity of Curcuma longa and Zingiber officinale Against Escherichia coli

  • Unique Paper ID: 197825
  • Volume: 12
  • Issue: 11
  • PageNo: 7111-7117
  • Abstract:
  • The increasing prevalence of antibiotic resistance has necessitated the exploration of alternative antimicrobial agents, particularly those derived from natural sources. Plant-based compounds have gained significant attention due to their bioactive properties and reduced side effects. The present study aimed to evaluate and compare the antibacterial efficacy of ethanolic extracts of Curcuma longa (turmeric) and Zingiber officinale (ginger) against environmental isolates of Escherichia coli. Ethanolic extracts of turmeric and ginger were prepared using standard solvent extraction techniques. Environmental samples were collected and subjected to microbiological isolation and biochemical identification to obtain E. coli strains. The antibacterial activity was assessed using the agar well diffusion method on sterile nutrient agar plates. Zones of inhibition were measured in centimeters, and experiments were performed in triplicates to ensure reproducibility. The results demonstrated that both extracts exhibited notable antibacterial activity against E. coli. However, turmeric extract showed a comparatively larger zone of inhibition than ginger extract, indicating higher efficacy. The observed activity is attributed to the presence of bioactive compounds such as curcumin and gingerol. In conclusion, turmeric exhibited superior antibacterial potential compared to ginger against environmental E. coli. These findings highlight the potential of plant-derived extracts as alternative antimicrobial agents and support further research for their application in pharmaceutical and therapeutic fields.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{197825,
        author = {Medha Morisetti and Pranati Das and Rupak Roy},
        title = {Comparative Antibacterial Activity of Curcuma longa and Zingiber officinale Against Escherichia coli},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {7111-7117},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=197825},
        abstract = {The increasing prevalence of antibiotic resistance has necessitated the exploration of alternative antimicrobial agents, particularly those derived from natural sources. Plant-based compounds have gained significant attention due to their bioactive properties and reduced side effects. The present study aimed to evaluate and compare the antibacterial efficacy of ethanolic extracts of Curcuma longa (turmeric) and Zingiber officinale (ginger) against environmental isolates of Escherichia coli.
Ethanolic extracts of turmeric and ginger were prepared using standard solvent extraction techniques. Environmental samples were collected and subjected to microbiological isolation and biochemical identification to obtain E. coli strains. The antibacterial activity was assessed using the agar well diffusion method on sterile nutrient agar plates. Zones of inhibition were measured in centimeters, and experiments were performed in triplicates to ensure reproducibility.
The results demonstrated that both extracts exhibited notable antibacterial activity against E. coli. However, turmeric extract showed a comparatively larger zone of inhibition than ginger extract, indicating higher efficacy. The observed activity is attributed to the presence of bioactive compounds such as curcumin and gingerol.
In conclusion, turmeric exhibited superior antibacterial potential compared to ginger against environmental E. coli. These findings highlight the potential of plant-derived extracts as alternative antimicrobial agents and support further research for their application in pharmaceutical and therapeutic fields.},
        keywords = {Antibacterial activity; Escherichia coli; Curcuma longa; Zingiber officinale; Ethanolic extract; Agar well diffusion; Natural antimicrobials; Antibiotic resistance},
        month = {April},
        }

Cite This Article

Morisetti, M., & Das, P., & Roy, R. (2026). Comparative Antibacterial Activity of Curcuma longa and Zingiber officinale Against Escherichia coli. International Journal of Innovative Research in Technology (IJIRT), 12(11), 7111–7117.

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