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Lactic acid bacteria as promising dietary-derived bioadsorbents for foodborne contaminants: Mechanism, application advances and future perspectives
Summary
This review examined lactic acid bacteria as potential bioadsorbents for foodborne contaminants including mycotoxins and microplastics. Researchers found that these beneficial bacteria can bind and sequester various pollutants through cell surface interactions, suggesting that dietary lactic acid bacteria may offer a safe, cost-effective approach to reducing human exposure to contaminants in the food chain.
Foodborne contaminants, such as mycotoxins and microplastics, pose significant threats to human health due to their high toxicity and persistence in the food chain, thus necessitate effective mitigation strategies. Lactic acid bacteria (LAB), characterized by high efficiency, cost-effectiveness, safety, and environmental friendliness, offer a promising solution for adsorbing these pollutants. This review systematically explores the roles, binding locations, interaction forces, and molecular mechanisms underlying LAB-contaminant interactions, as well as the thermodynamics and kinetic properties of the adsorption processes. Notably, LAB strains with outstanding adsorption capabilities are spotlighted, along with innovative enhancement strategies: optimized culture conditions, co-culture systems, nanoparticle functionalization, immobilized cells, and combinations with bio-adsorbents. The review further demonstrates the applications of LAB in ensuring safe food production and maintaining biological health. Future directions include multi-omics-driven gene discovery, genetic engineering techniques for precision regulation, and machine learning for adsorption optimization, advancing mechanistic insights and interdisciplinary solution.