Capsaicin exhibits antibacterial properties that inhibit pathogen growth in food.
Multiple scientific studies demonstrate that capsaicin exhibits notable antibacterial properties capable of inhibiting foodborne pathogens such as Salmonella, Escherichia coli, and Listeria monocytogenes.
The retrieved papers consistently demonstrate that capsaicin possesses direct antibacterial and bactericidal properties against various foodborne pathogens (such as Salmonella, E. coli, and Listeria). Studies show effective inhibition in vitro as well as enhanced efficacy when using delivery systems or ultrasound combinations, providing clear support for the claim.
Supassara Peeyananjarassri. The Efficiency of Capsaicin in Chilli on Antibacterial Activity of Salmonella. 2022. https://doi.org/10.47191/ijcsrr/v5-i8-49
Demonstrates that capsaicin extracted from chili peppers successfully inhibits the growth of Salmonella bacteria.
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Guangyin Zhang, Qian Zhao, Lingyan Zhao, Yuan Liu, Liu Su, Fangming Deng. Food-compatible γ-CD-MOF for capsaicin delivery: enhanced antibacterial activity and reduced irritation. 2026. https://doi.org/10.2139/ssrn.7022798
Shows that capsaicin delivery systems exhibit broad-spectrum antibacterial activity against foodborne pathogens such as E. coli and Listeria.
Elena Orlo, Chiara Russo, Roberta Nugnes, Margherita Lavorgna, Marina Isidori. Natural Methoxyphenol Compounds: Antimicrobial Activity against Foodborne Pathogens and Food Spoilage Bacteria, and Role in Antioxidant Processes.. 2021. https://doi.org/10.3390/foods10081807
Finds that capsaicin possesses significant antimicrobial activity against common foodborne pathogens and spoilage bacteria.
Ying Yang, Yuzhang Zhu, Yue Feng, Shuyao Zhao, Khalfan Khalfan Mohd, Cen Li, Jing Jin, Lincheng Zhang, Shuoqiu Tong, Yongjun Wu. Study on the inhibitory mechanism of combined ultrasound and capsaicin against Listeria monocytogenes.. 2025. https://doi.org/10.1016/j.ultsonch.2025.107399
Highlights capsaicin's efficacy as a sonosensitizer that enhances bactericidal action against Listeria monocytogenes in food matrices like milk.
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