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Microplastic Depuration on Asaphis Detlorata
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This study tested whether soaking shellfish in clean circulating water (a process called depuration) could reduce the microplastics inside them. After 3 to 4 days of depuration, shellfish had significantly fewer microplastic particles. This is relevant to seafood safety because shellfish are a known source of microplastic exposure for people who eat them.
Depuration is an effort to reduce/eliminate contamination including microplastics, which one is using a water circulation system. This study aims to determine the effective depuration time to reduce the microplastic content in Asaphis detlorata This study used a quantitative approach with experimental research design with a completely randomized design. There are 450 shells used as an experimental animal where is the treatment consisted of four depuration times, namely 1;2;3; and 4 days with 3 repetitions of each treatment, while the control shells were without depuration. Analysis of variance (ANOVA) was used to see the effect of depuration treatment on the microplastic content. If the effect of the treatment was significantly different, then the post hoc test was continued to determine the differences between treatments. The results showed that Asaphis detlorata obtained from the mouth of the Lakatong river estuary were contaminated with microplastics ranging from 0.6 to 8.1 MPs/shellfish and an average of 3.96 MPs/shellfish. Depuration time significantly affected the microplastic content in shellfish depuration effectiveness. There is a tendency that the longer depuration time is decreased microplastic content in shellfish. The effective depuration time to reduce the microplastic content in Asaphis detlorata was 3 and 4 days. Further research is needed for a more effective depuration for cleaning microplastics in shellfish.
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Depuration reduces microplastic content in wild and farmed mussels
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Wild and farmed mussels from Guanabara Bay, Brazil were found to contain microplastics, and a 96-hour depuration period significantly reduced but did not fully eliminate microplastic content. The study demonstrates that depuration can reduce microplastic burden in commercially sold shellfish, with important implications for seafood safety.
Microplastics Depuration Using Seawater In Asiatic Hard Clams (Meretrix) In The Waters Of The Jenelata River, Gowa
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This study tested how quickly hard clams can purge microplastics from their bodies when placed in clean seawater, finding that a depuration period can significantly reduce microplastic content. The results are relevant to seafood safety because they suggest that proper handling practices before shellfish reach consumers could help lower the amount of microplastics people ingest.
Short-term depuration reduces the levels of microplastics of a commercial mussel from Eastern Amazon
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Mussels from the Amazon coast were found to contain tiny plastic particles (microplastics) from sources like textile fibers and pigments—meaning people who eat these shellfish are likely swallowing plastic too. The good news: simply letting mussels "depurate," or sit and filter clean water for 72 hours before eating, cut their plastic contamination by more than half, offering a cheap and practical way to reduce your microplastic exposure from seafood.
Changes in Microplastic Particles and the Biochemical Composition of Blood Cockles, Anadara granosa, During Five-day Depuration
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Researchers subjected blood cockles (Anadara granosa) to a five-day depuration process and tracked both microplastic removal and changes in the animals' nutritional biochemistry. Depuration successfully reduced microplastic particle counts, but it also altered protein and lipid composition of the cockle meat, raising questions about the trade-off between contamination reduction and nutritional quality.
Microplastics levels in cultured or harvested mollusks non-depurated and commercially depurated at different times
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Researchers measured microplastic levels in three species of commercially available bivalve mollusks at different depuration stages and found that fibers made up over 90% of the detected particles. Standard commercial depuration reduced microplastic content by 26-50% depending on the species, but extending the depuration period did not significantly improve removal rates. The study estimates that annual human consumption of these mollusks results in the ingestion of several meters of microplastic fibers per year.
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