Enzyme immobilization-based multilayer colorimetric probe for enhanced detection of viable foodborne pathogens

The Quick Summary

Bad germs in food, like Salmonella typhimurium, can make people very sick. Scientists made a special helper tool to find these germs better. They built a tiny material using building blocks called MOF-808 and ZIF-8. This special material holds a helper molecule called HRP, which is an enzyme. They called this new helper MOF-808@Z-HRP. This new tool works much faster and stronger to find the germs. It helps us see if harmful germs are in our food so we can stay safe.

Practical Implications

This study presents a significant practical implication for food science by offering a rapid and highly sensitive method for detecting viable foodborne pathogens. Traditional detection methods can often be time-consuming and labor-intensive, delaying critical interventions in food safety. The developed MOF-808@Z-HRP probe, with its enhanced catalytic activity, could facilitate quick, on-site screening of food products. This capability is crucial for preventing outbreaks of illnesses caused by bacteria like Salmonella typhimurium, reducing food spoilage, and ensuring the integrity of the food supply chain from farm to fork. Implementing such a colorimetric probe could lead to more efficient quality control processes, safeguarding public health and minimizing economic losses related to contaminated food.

Potential Use in Indonesia

This technology could greatly benefit Indonesia by offering a quick and easy way to check food safety at street food stalls and traditional markets, where refrigeration might be limited and the tropical climate encourages bacterial growth. Rapid, on-site detection of pathogens like Salmonella typhimurium could help prevent food poisoning outbreaks and build consumer trust in local food products, especially along complex supply chains that often connect remote farms to urban centers.

Original Abstract

Pathogenic bacterial infections pose a significant threat to human life, health, and socioeconomic development, with those arising from Salmonella typhimurium (S. typhimurium) being particularly concerning. Herein, we developed a highly efficient catalytic material based on an ultra-stable MOF-808 core modified with an amorphous ZIF-8 layer, enabling substantial loading of horseradish peroxidase (HRP) to form MOF-808@Z-HRP. The catalytic activity of MOF-808@Z-HRP is approximately 1.65 times that……

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