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Micro- and nanoplastics: Contamination routes of food products and critical interpretation of detection strategies
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This review evaluates current methods for detecting micro and nanoplastics in food and beverages, from sample preparation to chemical identification. The authors highlight significant challenges including detection sensitivity limits, interference from food matrices, and a lack of standardized protocols. Better analytical tools are needed to accurately assess how much microplastic contamination people are actually consuming.
Micro-and nanoplastics (M/NPs) are emerging pollutants released into the food, beverages, and environment from plastic products by weathering, oxidative damage, and mechanical stress. Detection of M/NPs in food and beverages is a vital factor in preventing the deleterious effects of these materials on human health and other ecosystems. Analytical strategies for M/NPs demonstrate numerous drawbacks, including detection sensitivity limitation, matrix digestion, and sample pretreatment. Moreover, the content of M/NPs in food and beverages varies with food production, storage, and transport, making it hard to precisely detect them. The contamination route is a key factor affecting the level of M/NPs in food and beverages. Strict control over the contamination route could be beneficial in preventing M/NP pollution. This review highlighted routes of food and beverage contamination by M/NPs, various pros and cons of detection strategies, and critical interpretation of reported techniques, including microscopy, spectroscopy, light scattering, and thermal methods. Besides, the bottlenecks of detection and quantification approaches for M/NPs and recent advancements have also been highlighted. Much is still unknown concerning the fate, activities, and properties of M/NPs present in various matrices. This review aims to assist the investigators to tackle the drawbacks and pave the way for upcoming research, minimizing the health complications by regulating the control over M/NPs pollution.
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