A recent study published in Microbiology Spectrum reveals that tomato juice has the potential to eradicate Salmonella Typhi and other bacteria that affect digestive and urinary tract health. This research highlights the natural antibacterial benefits of consuming tomatoes and suggests that they may offer a significant health advantage against pathogens like Salmonella Typhi.Scientists have found that tomato juice can effectively fight Salmonella Typhi and other harmful bacteria due to specific antimicrobial peptides discovered in tomatoes. This discovery underscores the potential health advantages associated with consuming tomatoes.Tomato juice has been shown to combat Salmonella Typhi and other bacteria that can negatively impact people’s digestive and urinary tract health, as indicated in a recent publication in Microbiology Spectrum, a journal of the American Society for Microbiology. Salmonella Typhi is a deadly pathogen specific to humans that causes typhoid fever.“Our primary objective in this study was to determine whether tomato and tomato juice could eliminate enteric pathogens, including Salmonella Typhi, and if so, what attributes enable them to do so,” explained principal study investigator Jeongmin Song, Ph.D., Associate Professor in the Department of Microbiology & Immunology at Cornell University.Discovery of Antimicrobial Peptides in TomatoesThe researchers initially conducted laboratory experiments to confirm the ability of tomato juice to kill Salmonella Typhi. Upon establishing its effectiveness, the team investigated the tomato’s genome to identify the antimicrobial peptides responsible for this action.Antimicrobial peptides are small proteins that disrupt the bacterial membrane, thereby compromising the integrity of these organisms. The researchers identified four potential antimicrobial peptides and evaluated their efficacy against Salmonella Typhi, leading to the discovery of two peptides that were particularly effective against the pathogen.Broader Implications and Public Health BenefitsSubsequent tests were performed on Salmonella Typhi variants prevalent in regions where the disease is endemic. Additionally, a computational analysis was conducted to further understand the mechanism through which the antibacterial peptides eliminate Salmonella Typhi and other enteric pathogens. Finally, the researchers assessed the efficacy of tomato juice against other enteric pathogens that can impact people’s digestive and urinary tract health.The key finding of the study is that tomato juice effectively eradicates Salmonella Typhi, including its hypervirulent variants, and other bacteria that can negatively impact the digestive and urinary tract health of individuals. Specifically, two antimicrobial peptides were found to be capable of eliminating these pathogens by disrupting the bacterial membrane, which serves as a protective layer surrounding the pathogen.“Our research demonstrates that both tomato and tomato juice have the ability to eradicate enteric bacteria such as Salmonella,” noted Song. The researchers expressed their hope that the findings of the study will prompt the general public, especially children and teenagers, to incorporate more tomatoes, as well as other fruits and vegetables, into their diets due to the natural antibacterial benefits they offer to consumers.Reference: “Antimicrobial properties of tomato juice and peptides against typhoidal Salmonella” by Ryan S. Kwon, Gi Young Lee, Sohyoung Lee and Jeongmin Song, 30 January 2024, Microbiology Spectrum.
DOI: 10.1128/spectrum.03102-23
Tomato Juice Has the Ability to Eliminate Salmonella and Other Harmful Bacteria
