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Microplastic Debris in Yogurt: Occurrence, Characterization, and Implications for Human Health
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Researchers tested both conventional and organic yogurt sold in Romanian supermarkets and found roughly 2,200 microplastic particles per kilogram in each type. The particles included both natural fibers and synthetic plastics like nylon, polyester, and polyethylene, likely introduced during processing and packaging. This study adds yogurt to the growing list of everyday foods through which people are unknowingly consuming microplastics.
The present study aimed to identify and characterize the microplastics (MPs) extracted from conventional and organic yogurt, sold in large hypermarket chains in Romania. In this respect, the morphology and chemical composition of MPs, as well as the health risks generated by their presence in yogurt were important to investigate. In the yogurt samples were identified by optical microscopy a reasonably high number of microparticles (black, blue, red, gray, etc.): ~2236 / kg in conventional yogurt and ~2266 / kg in organic yogurt. The micro-FTIR analysis along with OPUS v.7.5 software’s library revealed their composition. The complexity of the study was not generated only by the analytical methods used to characterize the MPs but also by the isolation process required for this. Therefore, the results revealed the presence of microparticles of cotton, cellulose, wool, raffia, and flax, (considered natural microparticles), but also mixtures with polymers (acrylic, nylon, polyester, cellophane, polyurethane, polyethylene, etc.), considered synthetic microparticles. Based on the above results could be established the correlations and the statistical approach, information that may serve or act as an incentive for milk and dairy product processors to try to find the source of contamination, starting with the raw material, continuing with the processing chain, and ending with the final product.
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Emerging Health Risks Associated with the Intake of Microplastics Found in Milk and Dairy Products
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Researchers assessed health risks from microplastics found in various milk and dairy products, including conventional, organic, and raw varieties. They found that yogurts showed consistently higher associations with certain polymer contaminations, and strong correlations existed between microplastic concentration and exposure-related risk parameters. The study suggests that routine consumption of contaminated dairy products represents an emerging dietary exposure pathway for microplastics.
Yoğurt Üretim Sürecinde Mikroplastik Varlığının Değerlendirilmesi
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This study investigated microplastic contamination at different stages of yogurt production in a Turkish facility, examining whether microplastics enter the product during manufacturing. Microplastic particles were detected in yogurt samples, indicating that production environments and equipment can be sources of contamination in dairy products.
Occurrence, Characteristics, and Exposure Assessment of Microplastics in Commercial Dairy Products
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Scientists found tiny plastic particles (called microplastics) in every single dairy product they tested, likely coming from the packaging the food is stored in. Kids are especially exposed since they eat more relative to their body weight, and while we don't yet know the full health effects of eating these particles, this study is a first step toward understanding how much plastic is ending up in everyday foods like milk and yogurt.
Investigation of microplastic contamination in some dairy products
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Researchers tested milk, mozzarella cheese, yogurt, and cream products (12 packages, 36 samples total) for microplastics using microscopy and spectroscopy. Microplastic particles, mostly fragments, were found in all samples, with locally or regionally produced items showing higher levels than imported ones. Plastic types detected included polyethylene, polypropylene, polyester, polystyrene, and polycarbonate, suggesting contamination from processing equipment and packaging.
Microplastics in a Traditional Turkish Dairy Product: Ayran
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Researchers tested traditional Turkish ayran, a yogurt-based beverage, and found microplastic contamination at multiple stages of production, from ingredients like water and salt to packaging materials. Fibers and fragments were the most common particle types detected across all samples. The study highlights that even traditional dairy products can be a source of human microplastic ingestion through contaminated ingredients and processing.
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