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Impact of the size and shape of microplastics on their ingestion and excretion by BSF larvae during waste bioconversion
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Researchers investigated how the size and shape of microplastics affect their ingestion and excretion rates by black soldier fly (BSF) larvae during organic waste bioconversion, examining the implications for microplastic fate in biological waste treatment systems.
International audience
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Exposure of black soldier fly larvae to microplastics of various sizes and shapes: Ingestion and egestion dynamics and kinetics
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Researchers studied how black soldier fly larvae, used to convert food waste into animal feed, interact with microplastics of different sizes and shapes. The larvae ingested microplastics along with their food but could not fully break them down, passing most of them through in their waste. This raises food safety concerns because if microplastics persist in the larvae, they could transfer up the food chain when the larvae are used as feed for livestock or fish.
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Researchers examined how black soldier fly larvae ingest and excrete microplastics, finding that particle ingestion and excretion dynamics correlate with mouth opening size, raising food safety concerns for larvae used as animal feed.
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Researchers studied how black soldier fly larvae, increasingly used to recycle food waste, handle micro- and nanoplastics of different sizes during digestion. They found that nanoplastics remained in the gut significantly longer than larger microplastics and were retained even after the larvae stopped eating contaminated food. The findings raise concerns that nanoplastics could enter the food chain when larvae-derived products are used as animal feed or fertilizer.
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Researchers investigated the ingestion and egestion dynamics of micro- and nanoplastics in black soldier fly larvae, examining how these insects process plastic particles and their potential role in plastic breakdown.
Toxicity and bioconversion: Meta-analytical insights into microplastic effects on black soldier fly rearing
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This meta-analysis found that microplastics in organic waste can reduce black soldier fly larval growth and survival, though larvae demonstrated some capacity to biodegrade certain plastic polymers. The findings are important because black soldier fly larvae are increasingly used for sustainable waste processing, and microplastic contamination in waste streams could compromise this approach.
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