However, current research progress on PVC biodegradation lags behind that on biodegradation of PE 7, 8, 9, 10, 11, PET 12, 13, 14, and PS 15, 16. For this purpose, plastic biodegradation strains and enzymes should be identified, and intermediate biodegradation products should be recovered to be used as alternative chemicals or for biomass production 6. Therefore, it is important to develop alternative approaches for a more sustainable and eco-friendly treatment of plastic waste.īiological degradation and upcycling constitute a promising approach for sustainable treatment of plastic waste and the future development of a relevant green bioeconomy 4, 5. However, these technologies are energy-intensive and release secondary pollutants (e.g., chloride and dioxins) and greenhouse gases 3. Landfill and incineration processes are commonly used for the treatment and final disposal of plastic waste. Among these polymers, the market share of PVC (10.0%) is only lower than those of PE (29.7%) and PP (19.3%) based on European polymer demand 2. Polyvinyl chloride (PVC) is a widely used plastic polymer, along with polyethylene (PE), polystyrene (PS), polypropylene (PP), polyurethane (PUR) and polyethylene terephthalate (PET). Global accumulation of plastic waste and the associated pollution are serious environmental and socioeconomic problems 1. Furthermore, enzymatic assays using the purified catalase-peroxidase support a role in PVC depolymerization. We use genomic, transcriptomic, proteomic, and metabolomic analyses to identify genes and proteins potentially involved in PVC degradation (e.g., catalase-peroxidase, dehalogenases, enolase, aldehyde dehydrogenase and oxygenase), and propose a PVC biodegradation pathway. EMBL-1) is able to depolymerize and utilize PVC as sole energy source. A bacterial strain isolated from the larval intestine ( Klebsiella sp. We show that the larvae of an insect pest, Spodoptera frugiperda, can survive by feeding on PVC film, and this is associated with enrichment of Enterococcus, Klebsiella and other bacteria in the larva’s gut microbiota. Here, we isolate a PVC-degrading bacterium from the gut of insect larvae and shed light on the PVC degradation pathway using a multi-omic approach. Evidence for microbial degradation of polyvinyl chloride (PVC) has previously been reported, but little is known about the degrading strains and enzymes.
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