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Peer Review #2 of "Microplastic contamination in canned fish sold in Türkiye (v0.1)"
Summary
This peer review evaluated a study of 33 canned fish brands from the Turkish market, in which microplastics were found in all samples, with fragments being most abundant (57.3%) and polyolefin the most common polymer, suggesting packaging and production processes are primary contamination sources.
The presence of microplastics (MPs) in processed seafood is a growing concern.In this study, 33 different canned fish brands belonging to 7 producers were purchased from the Turkish market and investigated.MPs composition, possible sources, and potential intake were assessed.Light microscopy was used to quantify potential MPs, and micro-Raman microscopy was used to identify the polymer types.The results showed that all the samples had at least one MPs particle, and fragments were the most abundant (57.3%) shapes of MPs.Polyolefin (21.88%) was the most common polymer type.The results showed that packaging and the production processes are the main possible sources of MPs.Human intake estimation risk is relatively lower since canned fish consumption is relatively low.The findings suggest that the risk related to MPs in canned fish should be considered one of the components of food safety management systems.