Enhancing the Efficacy of Antibiotics Against Pseudomonas aeruginosa Using Nanoemulsions of Myrtle Plant Extract

  • Dhulfiqar Abdul Hussein Baqer Alkhawga Islamic Azad University, Iran, Science and research branch, Faculty of sciences, department of microbiology
Keywords: Nanoemulsion, Myrtle Plant Extract, Pseudomonas Aeruginosa, Biofilm Inhibition, Antibiotic Synergy

Abstract

Biofilms made by Pseudomonas aeruginosa create a shield that helps the bacteria resist antibiotics and the body's defenses, often leading to long-lasting and hard-to-treat infections.  This study looked at how effective nanoemulsions made with Myrtle plant extract could be in making regular antibiotics work better against P. A focus on stopping the growth of biofilms in Pseudomonas aeruginosa and changing the activity of genes related to biofilms (pelA and pslA).  Nanoemulsions with Myrtle extract were made and mixed with low amounts of gentamicin and imipenem.  They tested how well it worked against biofilms using the crystal violet test and counted the number of colonies.  In addition, we looked at how important genes related to biofilm (pelA and pslA) were affected by using a test called real-time quantitative polymerase chain reaction (RT-qPCR).  The combination treatments worked really well to lower P. The formation of biofilm by aeruginosa ATCC 27853 is significantly higher when compared to using antibiotics alone (P < 0. 0001) The CV assay results showed that the biofilm mass went down by more than 75%, and the CFU counting revealed a significant drop in the number of living bacteria.  The RT-qPCR tests showed that adding Myrtle-based nanoemulsions with antibiotics greatly reduced the activity of the pelA and pslA genes (P < 0. 05) These results indicate that tiny drops of Myrtle extract can make regular antibiotics work better by breaking down biofilms and reducing the activity of genes related to biofilms in P. A problem with bacteria called aeruginosa is being addressed with a hopeful approach to fight infections that don't respond to regular treatments.

References

K. Renuka, A. Kapil, S. K. Kabra, N. Wig, B. K. Das, V. V. Prasad, R. Chaudhry, and P. Seth, “Reduced susceptibility to ciprofloxacin and gyra gene mutation in north Indian strains of Salmonella enterica serotype Typhi and serotype Paratyphi A,” Microbial Drug Resistance, vol. 10, pp. 146–153, 2004.

M. Unemo and W. M. Shafer, “Antimicrobial resistance in Neisseria gonorrhoeae in the 21st century: Past, evolution, and future,” Clinical Microbiology Reviews, vol. 27, pp. 587–613, 2014.

M. Sandasi, C. M. Leonard, and A. M. Viljoen, “The in vitro antibiofilm activity of selected culinary herbs and medicinal plants against Listeria monocytogenes,” Letters in Applied Microbiology, vol. 50, pp. 30–35, 2010.

D. Van Duin and D. L. Paterson, “Multidrug-resistant bacteria in the community: Trends and lessons learned,” Infectious Disease Clinics of North America, vol. 30, pp. 377–390, 2016.

S. Szczepanski and A. Lipski, “Essential oils show specific inhibiting effects on bacterial biofilm formation,” Food Control, vol. 36, pp. 224–229, 2014.

Y. G. Kim, J. H. Lee, G. Gwon, S. Kim, J. G. Park, and J. Lee, “Essential oils and eugenols inhibit biofilm formation and the virulence of Escherichia coli O157:H7,” Scientific Reports, vol. 6, p. 36377, 2016.

Z. L. Nabti, F. Sahli, H. Laouar, A. Olowo-okere, J. G. Nkuimi Wandjou, and F. Maggi, “Chemical composition and antibacterial activity of essential oils from the Algerian endemic Origanum glandulosum Desf. against multidrug-resistant uropathogenic E. coli isolates,” Antibiotics, vol. 9, p. 29, 2020.

S. A. Doost, M. N. Nasrabadi, V. Kassozi, H. Nakisozi, and P. van der Meeren, “Recent advances in food colloidal delivery systems for essential oils and their main components,” Trends in Food Science & Technology, vol. 99, pp. 474–486, 2020.

J. Reichling, “Anti-biofilm and virulence factor-reducing activities of essential oils and oil components as a possible option for bacterial infection control,” Planta Medica, vol. 86, pp. 520–537, 2020.

G. J. Cappuccino and N. Sherman, Microbiology: A Laboratory Manual, 6th ed., vol. 5. Upper Saddle River, NJ, USA: Pearson Education, 2001, pp. 133–194.

M. Cheesbrough, District Laboratory Practice in Tropical Countries, 2nd ed., vol. 7. Cambridge, UK: Cambridge University Press, 2009, pp. 1–226.

N. Jonathan, “Screening for extended-spectrum beta-lactamase-producing pathogenic enterobacteria in district general hospitals,” Journal of Clinical Microbiology, vol. 43, pp. 1488–1490, 2005.

T. Y. Tan, L. S. Yong Ng, J. He, T. H. Koh, and L. Y. Hsu, “Evaluation of screening methods to detect plasmid-mediated AmpC in Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis,” Antimicrobial Agents and Chemotherapy, vol. 53, pp. 146–149, 2009.

N. Hidri and M.-C. Ploy, “Instauration et surveillance d’un traitement antibiotique,” in Bacteriologie Medicale, 2nd ed., vol. 42, F. Denis, M.-C. Ploy, C. Martin, E. Bingen, and R. Quentin, Eds. Paris, France: Elsevier Masson, 2016, pp. 585–594.

S. Saxena, G. Banerjee, R. Garg, and M. Singh, “Comparative study of biofilm formation in Pseudomonas aeruginosa isolates from patients of lower respiratory tract infection,” Journal of Clinical and Diagnostic Research, vol. 8, pp. DC09–DC11, 2014.

V.-A. Duong, T.-T.-L. Nguyen, and H.-J. Maeng, “Preparation of solid lipid nanoparticles and nanostructured lipid carriers for drug delivery and the effects of preparation parameters of solvent injection method,” Molecules, vol. 25, p. 4781, 2020.

A. Daoud, D. Malika, S. Bakari, N. Hfaiedh, K. Mnafgui, A. Kadri, and N. Gharsallah, “Assessment of polyphenol composition, antioxidant and antimicrobial properties of various extracts of date palm pollen (DPP) from two Tunisian cultivars,” Arabian Journal of Chemistry, vol. 12, pp. 3075–3086, 2019.

D. Natarajan, S. J. Britto, K. Srinivasan, N. Nagamurugan, C. Mohanasundari, and G. Perumal, “Anti-bacterial activity of Euphorbia fusiformis a rare medicinal herb,” Journal of Ethnopharmacology, vol. 102, pp. 123–126, 2005.

M. H. Taleb, N. F. Abdeltawab, R. N. Shamma, S. S. Abdelgayed, S. S. Mohamed, M. A. Farag, and M. A. Ramadan, “Origanum vulgare L. essential oil as a potential anti-acne topical nanoemulsion—In vitro and in vivo study,” Molecules, vol. 23, p. 2164, 2018.

H. Ali, A. R. Al-Khalifa, A. Aouf, H. Boukhebti, and A. Farouk, “The effect of nanoencapsulation and nanoemulsion on the chemical structure and biological activity of Algerian Origanum glandulosum,” Scientific Reports, vol. 10, p. 2812, 2020.

R. Adams, Identification of Essential Oil Components by Gas Chromatography/Mass Spectroscopy, 4th ed. Carol Stream, IL, USA: Allured Publishing Corporation, 2007.

A. Fraja, F. Jaafara, B. Martib, L. Coderchb, and N. Ladharia, “A comparative study of oregano (Origanum vulgare L.) essential oil-based polycaprolactone nanocapsules/microspheres: Preparation, physicochemical characterization, and storage stability,” Industrial Crops and Products, vol. 140, p. 111669, 2019.

N. Gómez-Sequeda, M. Cáceres, E. E. Stashenko, W. Hidalgo, and C. Ortiz, “Antimicrobial and antibiofilm activities of essential oils against Escherichia coli O157:H7 and methicillin-resistant Staphylococcus aureus (MRSA),” Antibiotics, vol. 9, p. 730, 2020.

N. Nabet, H. Boudries, S. Loupassaki, S. Souagui, K. Madani, and Á. A. Carbonell-Barrachina, “Chemical composition, antimicrobial and antioxidant activities of Thymus fontanesii Boiss. et Reut. and Origanum glandulosum Desf. essential oils,” International Food Research Journal, vol. 24, pp. 2518–2525, 2017.

A. Farouk, H. Ali, A. R. Al-Khalifa, M. Mohsen, and R. Fikry, “Aroma volatile compounds of parsley cultivated in the Kingdom of Saudi Arabia and Egypt extracted by hydrodistillation and headspace solid-phase microextraction,” International Journal of Food Properties, vol. 20, pp. 2866–2877, 2018.

F. Donsì, M. Annunziata, M. Sessa, and G. Ferrari, “Nanoencapsulation of essential oils to enhance their antimicrobial activity in foods,” LWT - Food Science and Technology, vol. 44, pp. 1908–1914, 2011.

Published
2025-07-26
How to Cite
Alkhawga, D. A. H. B. (2025). Enhancing the Efficacy of Antibiotics Against Pseudomonas aeruginosa Using Nanoemulsions of Myrtle Plant Extract. Central Asian Journal of Literature, Philosophy and Culture, 6(3), 495-502. https://doi.org/10.17605/cajlpc.v6i3.1289
Section
Articles