PHYTOCHEMICAL ANALYSIS OF MEDICINAL PLANTS WITH ANTIBACTERIAL PROPERTIES

Authors

  • Dr. Salam Himika Devi
  • Subha L
  • Nilaranjan Saikia
  • Surendhar Amargeeth
  • Elareen Belljoy Donshiew

DOI:

https://doi.org/10.53555/eijbps.v11i1.60

Keywords:

Phytochemicals, Antibacterial activity, Medicinal plants

Abstract

The worldwide increase of antibiotic-resistant bacterial strains requires immediate development of alternative antimicrobial medicines.  Medical plants possess therapeutic properties because of their bioactive phytochemicals which demonstrate antimicrobial action.  Secondary metabolites produced by plants including alkaloids and flavonoids and tannins and saponins and terpenoids demonstrate inhibitory properties against different harmful microorganisms.  The analysis of antibacterial medicinal plants in this study evaluates their potential to combat Pseudomonas aeruginosa, Staphylococcus aureus, and Escherichia coli bacterial infections. The conventional qualitative and quantitative techniques were used for phytochemical screening to detect important secondary metabolites.  Scientists utilized the disc diffusion method to measure inhibition zone widths for evaluating antibacterial activities of these plant extracts. They conducted the minimum inhibitory concentration (MIC) assay to find the lowest effective concentration which halted bacterial growth.  Plants containing elevated levels of alkaloids together with phenolic chemicals and flavonoids demonstrated the strongest antibacterial properties.  Two of the selected plants demonstrated significant inhibitory properties against S. aureus and E. coli through their active compounds in Ocimum sanctum (holy basil) and Curcuma longa (turmeric). 

These findings demonstrate the potential of medicinal plants strong in phytochemicals as a viable natural antibacterial agent source. These bioactive substances work by disrupting bacterial membranes, inhibiting enzymes, and interfering with the creation of proteins. These plant-derived chemicals may be utilized as supplemental or alternative antimicrobial agents to treat bacterial infections, especially those brought on by drug-resistant strains, due to their natural origin and broad-spectrum activity. In order to create plant-based antibacterial medicines, more study on the separation, purification, and structural characterisation of these phytochemicals as well as their therapeutic uses would be essential. 

Author Biographies

Dr. Salam Himika Devi

Guest Faculty, Department of Life Sciences (Zoology), Manipur University, Canchipur, Imphal West District-795003, Manipur, India

Subha L

Assistant professor (Plant Breeding and Genetics), Tamilnadu Agricultural University, Agricultural Research Station, Pattukkottai, Thanjavur, Tamil Nadu,

Nilaranjan Saikia

Research Scholar, Assam Downtown University

Surendhar Amargeeth

PharmD Intern, School of Pharmaceutical Science, Vels Institute of Science Technology & Advanced Studies (VISTAS)

Elareen Belljoy Donshiew

Research Scholar, Department of Biochemistry, North Eastern Hill University, Shillong, Meghalaya,

References

Andrews, J. M. (2001). Determination of minimum inhibitory concentrations. Journal of Antimicrobial Chemotherapy, 48(1), 5-16. Https://doi.org/10.1093/jac/48.suppl_1.5—Google Search. (n.d.).

Bauer, A. W., Kirby, W. M., Sherris, J. C., & Turck, M. (1966). Antibiotic susceptibility testing by a standardized single disk method. American Journal of Clinical Pathology, 45(4), 493-496. Https://doi.org/10.1093/ajcp/45.4.493—Google Search. (n.d.). Retrieved February 24, 2025, from

Biswas, K., Chattopadhyay, I., Banerjee, R. K., & Bandyopadhyay, U. (2002). Biological activities and medicinal properties of neem (Azadirachta indica). Current Science, 82(11), 1336-1345. - Google Search. (n.d.).

Cowan, M. M. (1999). Plant products as antimicrobial agents. Clinical Microbiology Reviews, 12(4), 564-582. Https://doi.org/10.1128/CMR.12.4.564—Google Search. (n.d.).

Cushnie, T. P., & Lamb, A. J. (2011).

Daglia, M. (2012). Polyphenols as antimicrobial agents. Current Opinion in Biotechnology, 23(2), 174-181. Https://doi.org/10.1016/j.copbio.2011.08.007—Google Search. (n.d.).

Goyal, S., Samsher, & Ramawat, K. G. (2021). Phytochemical constituents and antibacterial activity of medicinal plants: A review. Biomedicine & Pharmacotherapy, 142, 112008. Https://doi.org/10.1016/j.biopha.2021.112008—Google Search. (n.d.).

Harborne, J. B. (1998). Phytochemical methods: A guide to modern techniques of plant analysis (3rd ed.). Springer Science & Business Media. - Google Search. (n.d

Huttner, A., Harbarth, S., Hope, W. W., Lipman, J., & Roberts, J. A. (2020). Therapeutic antibiotic monitoring in human medicine and its link to antibiotic resistance. Clinical Microbiology and Infection, 26(8), 944-951. Https://doi.org/10.1016/j.cmi.2020.03.020—Google Search. (n.d.).

Moghadamtousi, S. Z., Kadir, H. A., Hassandarvish, P., Tajik, H., Abubakar, S., & Zandi, K. (2014). A review on antibacterial, antiviral, and antifungal activity of curcumin. BioMed Research International, 2014, 186864. Https://doi.org/10.1155/2014/186864—Google Search. (n.d.).

Newman, D. J., & Cragg, G. M. (2020). Natural products as sources of new drugs over the nearly four decades from 1981 to 2019. Journal of Natural Products, 83(3), 770-803. Https://doi.org/10.1021/acs.jnatprod.9b01285—Google Search. (n.d.).

Saleem, M., Nazir, M., Ali, M. S., Hussain, H., Lee, Y. S., Riaz, N., & Jabbar, A. (2019). Antimicrobial properties of secondary metabolites of Artemisia annua and their structure-activity relationship studies. Molecules, 24(8), 1632. Https://doi.org/10.3390/molecules24081632—Google Search.

Santos-Sánchez, N. F., Salas-Coronado, R., Villanueva-Cañongo, C., & Hernández-Carlos, B. (2019). Antioxidant compounds and their antioxidant mechanism. Antioxidants, 8(9), 405. Https://doi.org/10.3390/antiox8090405—Google Search. (n.d.).

Serrano, J., Puupponen-Pimiä, R., Dauer, A., Aura, A. M., & Saura-Calixto, F. (2009). Tannins: Current knowledge of food sources, intake, bioavailability, and biological effects. Molecular Nutrition & Food Research, 53(S2), S310-S329. Https://doi.org/10.1002/mnfr.200900039—Google Search. (n.d.).

Singleton, V. L., Orthofer, R., & Lamuela-Raventós, R. M. (1999). Analysis of total phenols and other oxidation substrates and antioxidants by means of Folin-Ciocalteu reagent. Methods in Enzymology, 299, 152-178. Https://doi.org/10.1016/S0076-6879(99)99017-1—Google Search. (n.d.).

Ventola, C. L. (2015). The antibiotic resistance crisis: Part 1: Causes and threats. Pharmacy and Therapeutics, 40(4), 277-283. - Google Search.

World Health Organization (WHO). (2021). Global action plan on antimicrobial resistance. Retrieved from https://www.who.int/antimicrobial-resistance—Google Search. (n.d.).

Downloads

Published

2025-04-25