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Article Tier 2 Environmental Sources Gut & Microbiome Human Health Effects Nanoplastics Sign in to save

A comparative study of effects of biodegradable and non-biodegradable microplastics on the growth and development of black soldier fly larvae (Hermetia illucens).

2023 4 citations

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Researchers investigated the digestion, accumulation, and excretion of biodegradable and non-biodegradable microplastics in black soldier fly larvae, finding that both types accumulated only in the larval gut and had no adverse effects on larval growth or development. Larvae efficiently excreted microplastics before pupation, suggesting BSFL could process plastic-contaminated organic waste without significant bioaccumulation.

Abstract Purpose: This study aimed to investigate the digestion process of biodegradable and non-biodegradable microplastics (MPs) within black soldier fly larvae (BSFL) and assess their impact on larval growth and development. The goal was to understand the fate of MPs within BSFL, considering their potential for waste conversion polluted with MPs. Methods: BSFL were exposed to two types of MPs, and their growth, development, potential accumulation and excretion of MPs were monitored. Results: The findings revealed that the MPs accumulated solely in the larval gut and had no adverse effects on the growth and development of BSFL. Larvae efficiently excreted MPs before reaching the pupation stage. Conclusion: This research emphasizes the potential of BSFL as a bioconversion agent for organic waste, even in the presence of MPs. The effective excretion of MPs by BSFL before pupation suggests their ability to mitigate potential harm caused by MP accumulation. The fact that BSFL may excrete MPs before pupation would contribute to their safe use as animal feedstock. A careful evaluation of the effects of using BSFL reared on contaminated substrates especially containing visually non-detectable residuals like nanoplastic, chemicals or toxic metals and further examination of the broader implications for waste management and sustainable livestock farming remains important.

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