Study of fibrous microplastic and natural microfiber levels in branded milk samples from Italy

As far as we know, there is no evidence regarding the microfiber (MF) occurrence and abundance in branded milk samples from Italy. Therefore, a total of 20 milk samples from 5 brands were collected and analyzed using a digestion step with hydrogen peroxide followed by filtration. Natural and synthe...

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Main Authors: Serena Santonicola, Michela Volgare, Mariacristina Cocca, Giampaolo Colavita
Format: Article
Language:English
Published: PAGEPress Publications 2025-03-01
Series:Italian Journal of Food Safety
Subjects:
Online Access:https://www.pagepressjournals.org/ijfs/article/view/13523
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author Serena Santonicola
Michela Volgare
Mariacristina Cocca
Giampaolo Colavita
author_facet Serena Santonicola
Michela Volgare
Mariacristina Cocca
Giampaolo Colavita
author_sort Serena Santonicola
collection DOAJ
description As far as we know, there is no evidence regarding the microfiber (MF) occurrence and abundance in branded milk samples from Italy. Therefore, a total of 20 milk samples from 5 brands were collected and analyzed using a digestion step with hydrogen peroxide followed by filtration. Natural and synthetic MFs were classified according to the evaluation of surface morphology (i.e., shape and texture), followed by chemical identification using Fourier transform infrared spectroscopy (FTIR) microspectroscopy. Results revealed the occurrence of MFs in 67.5% of the analyzed samples and showed variability ranging between 1-27 particles/100 mL with an overall average of 3.85 MFs/100 mL. The FTIR analyses confirmed the presence of polyethylene, polyester, acrylic, and cellulosic MFs. According to the literature, the contamination of milk may occur at various stages along the production chain. The blood-milk barrier would prevent MFs from being transferred across the mammary gland into the milk. The highest MF levels found in ultra-high temperature skimmed milk of some brands may indicate the more complex the processing of milk, the more MFs they contain. However, due to the different MF types and polymers, an unambiguous conclusion on MF sources cannot be made. MFs could be shed from the filters used in the milk processing factories and the protective clothing for workers. Therefore, the MF contamination should be properly investigated along the entire supply chain, identifying the sources of contamination and implementing control strategies and mitigation measures.
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spelling doaj-art-2fd045702a0d4085884b7a11130aab762025-08-20T03:42:05ZengPAGEPress PublicationsItalian Journal of Food Safety2239-71322025-03-0110.4081/ijfs.2025.13523Study of fibrous microplastic and natural microfiber levels in branded milk samples from ItalySerena Santonicola0Michela Volgare1Mariacristina Cocca2Giampaolo Colavita3Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, Campobasso; Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Pozzuoli (NA)Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico IIInstitute of Polymers, Composites and Biomaterials, National Research Council of Italy, Pozzuoli (NA)Department of Medicine and Health Sciences “V. Tiberio”, University of Molise, Campobasso As far as we know, there is no evidence regarding the microfiber (MF) occurrence and abundance in branded milk samples from Italy. Therefore, a total of 20 milk samples from 5 brands were collected and analyzed using a digestion step with hydrogen peroxide followed by filtration. Natural and synthetic MFs were classified according to the evaluation of surface morphology (i.e., shape and texture), followed by chemical identification using Fourier transform infrared spectroscopy (FTIR) microspectroscopy. Results revealed the occurrence of MFs in 67.5% of the analyzed samples and showed variability ranging between 1-27 particles/100 mL with an overall average of 3.85 MFs/100 mL. The FTIR analyses confirmed the presence of polyethylene, polyester, acrylic, and cellulosic MFs. According to the literature, the contamination of milk may occur at various stages along the production chain. The blood-milk barrier would prevent MFs from being transferred across the mammary gland into the milk. The highest MF levels found in ultra-high temperature skimmed milk of some brands may indicate the more complex the processing of milk, the more MFs they contain. However, due to the different MF types and polymers, an unambiguous conclusion on MF sources cannot be made. MFs could be shed from the filters used in the milk processing factories and the protective clothing for workers. Therefore, the MF contamination should be properly investigated along the entire supply chain, identifying the sources of contamination and implementing control strategies and mitigation measures. https://www.pagepressjournals.org/ijfs/article/view/13523Microplasticsmicrofiberscommercial milkfood safety
spellingShingle Serena Santonicola
Michela Volgare
Mariacristina Cocca
Giampaolo Colavita
Study of fibrous microplastic and natural microfiber levels in branded milk samples from Italy
Italian Journal of Food Safety
Microplastics
microfibers
commercial milk
food safety
title Study of fibrous microplastic and natural microfiber levels in branded milk samples from Italy
title_full Study of fibrous microplastic and natural microfiber levels in branded milk samples from Italy
title_fullStr Study of fibrous microplastic and natural microfiber levels in branded milk samples from Italy
title_full_unstemmed Study of fibrous microplastic and natural microfiber levels in branded milk samples from Italy
title_short Study of fibrous microplastic and natural microfiber levels in branded milk samples from Italy
title_sort study of fibrous microplastic and natural microfiber levels in branded milk samples from italy
topic Microplastics
microfibers
commercial milk
food safety
url https://www.pagepressjournals.org/ijfs/article/view/13523
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AT mariacristinacocca studyoffibrousmicroplasticandnaturalmicrofiberlevelsinbrandedmilksamplesfromitaly
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