The Efficacy of Flavonoids from Potato Peels  (Solanum Tuberosum) Extracts Against Listeria  monocytogenes Causing Listeriosis

Uday Abdul-Reda Hussein; Husam S M Khalaf; Rusul Basim Qasim Al-lami; Nizar Ahmed; Maha Noori Shakir; Yaser Ahmad Ibrahim; Mohannad Abdulrazzaq Gati; Mohammad J  Al-Jassani

Uday Abdul-Reda Hussein College of Pharmacy, University of Al-Ameed, Iraq
Husam S M Khalaf Department of Biology, Al-Turath University, Iraq
Rusul Basim Qasim Al-lami Department of Medical Laboratories Technology, Al-Manara College For Medical Sciences, Maysan, Iraq
Nizar Ahmed Department of Medical Laboratories Technology, Warka University College, Iraq
Maha Noori Shakir Department of Medical Laboratories Technology, AL-Nisour University College, Baghdad, Iraq
Yaser Ahmad Ibrahim Department of Medical Laboratories Technology, Mazaya University College, Iraq
Mohannad Abdulrazzaq Gati College of Health and Medical Technologies, National University of Science and Technology, Dhi Qar, Iraq
Mohammad J Al-Jassani Department of Forensic Science, College of Science, Al-Karkh University of Science, Iraq

Keywords: Listeria monocytogenes, flavonoids, foodborne infection, potato peels

Abstract

Background: Listeriosis, caused by Listeria monocytogenes, remains a serious food-borne threat. Continuous monitoring and alternative antimicrobials are needed to curb emerging virulent, drug-resistant strains.

Objective: To assess the prevalence of L. monocytogenes in raw milk and evaluate the in-vitro anti-Listeria efficacy of flavonoid-rich potato- peel extracts.

Methods: Sixteen raw-milk samples were cultured; isolates were confirmed as L. monocytogenes. Potato peels were extracted with 80% methanol and other solvents. Total flavonoid content and individual compounds were quantified (HPLC). Minimum inhibitory concentrations (MICs) of the extracts were determined against the isolates and compared with gentamicin and amikacin.

Results: L. monocytogenes was detected in 6 by16 samples (37.5 percent). The 80 percent methanolic extract gave the highest yield and total flavonoids. Quercetin was the dominant flavonoid, followed by hesperidin, rutin, and naringin.

Conclusion: Potato-peel flavonoids, especially quercetin-rich methanolic extracts, show potent in-vitro activity against L. monocytogenes, highlighting their promise as natural antimicrobials or adjunct treatments for listeriosis.

How to cite this article:
Hussein U A, Khalaf H S M, Al-lami R B Q, Ahmed
N, Shakir M N, Ibrahim Y A, Gati M A, Al-Jassani
M J. The Efficacy of Flavonoids from Potato Peels
(Solanum Tuberosum) Extracts Against Listeria
monocytogenes Causing Listeriosis. J Commun
Dis. 2025;57(2):131-135.

DOI: https://doi.org/10.24321/0019.5138.202548

References

Barbuddhe SB, Malik SV, Kumar JA, Kalorey DR, Chakraborty T. Epidemiology and risk management of listeriosis in India. International journal of food microbiology. 2012 Mar 15;154(3):113-8. [Google Scholar] [Pubmed]

The Efficacy of Flavonoids from Potato Peels (Solanum Tuberosum) Extracts Against Listeria monocytogenes Causing Listeriosis

Abstract

References

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