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Nano-and Microplastics Migration from Plastic Food Packaging into Milk and Dairy Products: Impact on Nutrient Digestion, Absorption, and Metabolism
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This review examined how nano- and microplastics migrate from plastic food packaging into milk and dairy products, discussing their potential impacts on nutrient digestion, absorption, and metabolism in the human body.
Abstract: The ongoing use of plastic polymers to manufacture food packaging has raised concerns about the presence of nano- and microplastics (NMPs) in a variety of foods. This review provides the most recent data on NMPs' migration from plastic packaging into milk and dairy products. Also discussed are the possible effects of NMPs on nutrient digestion, absorption, and metabolism. Different kinds of milk products, including skimmed or whole liquid and powder milk, infant formula milk, and other dairy products, have been found to contain NMPs of various sizes, shapes, and concentrations. NMPs may interact with proteins, carbohydrates, and fats and have a detrimental impact on how well these nutrients are digested and absorbed by the body. The presence of NMPs in the gastrointestinal tract may impact how lipids, proteins, glucose, iron, and energy are metabolised, increasing the risk of developing health conditions such as diabetes, cardiovascular disease, hypertension, and some cancers. In addition to NMP, plastic oligomers released from food packaging material have been found to migrate to various food simulants and milk, though their effect on human health has yet to be investigated. Viewpoints on potential directions for future studies on NMPs and nutrient digestion, absorption, and health are also presented in this review.
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Nano- and Microplastics Migration from Plastic Food Packaging into Dairy Products: Impact on Nutrient Digestion, Absorption, and Metabolism
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This review examines how nano and microplastics migrate from plastic food packaging into dairy products like milk and infant formula. The plastic particles can interfere with how the body digests and absorbs proteins, fats, and carbohydrates, and may disrupt metabolism of lipids, glucose, and iron. These findings are especially concerning for infants and children who consume formula and milk from plastic containers, as their developing bodies may be more sensitive to these effects.
Effect of storage time on release of microplastics (MPs) from different milk packaging
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Researchers tested milk from plastic bottles, packets, and cartons, finding that microplastics increased the longer milk was stored. High-fat milk released more microplastics than low-fat milk, and raw unprocessed milk had none, pointing to packaging and processing as the source. Estimated daily intake was higher for children than adults.
Süt Ve Süt Ürünleri̇nde Mi̇kroplasti̇k Varliği, Sağlik Üzeri̇ne Etki̇leri̇ Ve Mi̇kroplasti̇k Ayirma Yöntemleri̇
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This review examines microplastic contamination in milk and dairy products, summarizing sources of contamination, potential health effects of microplastic exposure, and the various separation and detection methods used to identify microplastics in food — highlighting the growing concern for both environmental and human health.
Source, migration path and pollution of microplastics and nano-plastics in food
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This review traced the sources, migration pathways, and food contamination status of microplastics and nanoplastics, covering their entry into food chains through packaging, processing, environmental pollution, and water sources—and discussing potential accumulation in the human body and associated health risks.
Polypropylene micro- and nanoplastics affect the digestion of cow's milk proteins in infant model of gastric digestion
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Researchers found that polypropylene micro- and nanoplastics, commonly released from baby bottles during heating, interfere with the digestion of milk proteins in a simulated infant stomach model. The plastic particles bound to milk proteins and changed how they were broken down by digestive enzymes, with the effect being stronger in the infant model than in the adult model. This is concerning because incomplete protein digestion in infants could affect nutrient absorption during a critical period of growth and development.
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