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Sustainable depuration using environmentally friendly adsorbents as mitigation of microplastics in edible shellfish in Indonesian coastal waters
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This study tested the efficiency of depuration using natural adsorbents from banana peels and corn cobs to reduce microplastic content in the shellfish Meretrix meretrix over 12, 24, and 48 hours. After 48 hours, corn cobs achieved greater microplastic removal than banana peels, reducing average microplastic concentration from 4.27 to 2.53 particles per individual, demonstrating agricultural by-products as low-cost, effective tools for improving food safety in aquaculture.
Marine plastic pollution has led to the accumulation of microplastics in edible mollusks, which may pose a health risk to humans.Depuration offers a sustainable method for reducing microplastic content in seafood.This study investigated the efficiency of microplastic depuration in Meretrix meretrix using natural adsorbents derived from banana peels and corn cobs for 12, 24, and 48 hours.A completely randomized experimental design was applied, and microplastic concentrations were measured and analyzed using analysis of variance (ANOVA).Depuration time significantly affected microplastic removal, with the highest efficiency observed after 48 hours.The average microplastic concentration decreased from 4.27 MPsind at 24 hours to 2.53 MPsind at 48 hours.Both adsorbents reduced microplastic content, with corn cobs achieving greater removal than banana peels.These results indicate that agricultural by-products can serve as effective and low-cost depuration agents to reduce microplastic contamination in shellfish, providing a practical approach to improving food safety in aquaculture.
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Researchers tested whether banana peel—a natural adsorbent—could effectively depurate the freshwater mussel Pilsbryoconcha exilis of microplastics, varying depuration time across 12, 24, and 36 hours. Depuration effectiveness fluctuated across time points with no consistent improvement at longer durations, suggesting that banana peel adsorbent alone does not provide a reliable MP purification protocol for this mussel species.
Effectiveness of Corn Cobs in Reducing Microplastic Content in Bamboo Clams (Solen sp.) in Tanjung Mallasoro
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This study tested whether natural corn cob material could help remove microplastics from bamboo clams before they reach consumers. The results are relevant to food safety because shellfish accumulate microplastics from polluted water, and finding effective ways to reduce contamination could lower human dietary exposure.
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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.
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Researchers investigated microplastic contamination in the shellfish Polymesoda bengalensis from three West Sumatran estuaries and tested the effectiveness of NaCl solution treatment in reducing MP levels prior to consumption, using microscopy and ATR-FTIR to quantify and identify the polymer types present.
Evidence of Microplastics Accumulation in Selected Marine Molluscs for Consumption in The Meranti Islands of Riau Indonesia
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Researchers found microplastics — primarily fibers — in all four species of edible marine molluscs sampled from the Meranti Islands in Indonesia's Riau region, with larger individuals ingesting more plastic. Since these shellfish are consumed whole by local communities, microplastic contamination in them represents a direct pathway for human exposure through seafood.
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