Simulated Gastrointestinal Digestion of Polylactic Acid (Pla) Biodegradable Microplastics and Their Interaction with Gut Microbiota

Oligomer production and effects on gut microbiota of PLA and PBAT biodegradable microplastics in in vitro digestion model

Microplastics: fate in the human digestive environment in vitro and study of the epithelium / microbiota / mucus dialogue

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Using lab-grown models of the human gut, scientists found that everyday microplastics from food and water can shift gut bacteria toward more harmful types in both adults and toddlers, and specifically reduce production of butyrate, a beneficial compound that keeps the gut lining healthy, in infants. While the microplastics didn't directly damage the intestinal barrier in this study, the disruption to beneficial gut bacteria matters because a healthy microbiome is crucial for digestion, immunity, and overall health, especially in young children whose gut systems are still developing.

Microbial Biodegradation of Plastics and Microplastics: Recent Development

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Researchers reviewed recent advances in microbial biodegradation of plastics and microplastics, identifying key bacterial and fungal species capable of breaking down synthetic polymers and highlighting the biological mechanisms that could underpin scalable plastic waste remediation strategies.

Microbial Degradation of Microplastics

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Researchers reviewed microbial degradation mechanisms for microplastics, identifying bacterial and fungal species capable of colonizing plastic surfaces and breaking down polymer chains through enzymatic activity, though noting that degradation rates under environmental conditions remain too slow to address current pollution levels.

Microbial Degradation of Microplastics

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Microbial communities capable of colonizing and partially degrading plastic surfaces have been identified across global environments, raising the possibility of harnessing them for bioremediation of the plastic pollution crisis. However, current microbial degradation rates are far too slow to keep pace with plastic production, making engineered enhancement of these pathways a research priority.