Artículo

Nature’s Plastic Predators: A Comprehensive and Bibliometric Review of Plastivore Insects

Resumen

Unprecedented plastic production has resulted in over six billion tons of harmful waste. Certain insect taxa emerge as potential agents of plastic biodegradation. Through a comprehensive manual and bibliometric literature analysis, this review analyses and consolidates the growing literature related to insect-mediated plastic breakdown. Over 23 insect species, representing Coleoptera, Lepidoptera, and 4 other orders, have been identified for their capacity to consume plastic polymers. Natural and synthetic polymers exhibit high-level similarities in molecular structure and properties. Thus, in conjunction with comparative genomics studies, we link plastic-degrading enzymatic capabilities observed in certain insects to the exaptation of endogenous enzymes originally evolved for digesting lignin, cellulose, beeswax, keratin and chitin from their native dietary substrates. Further clarification is necessary to distinguish mineralisation from physicochemical fragmentation and to differentiate microbiome-mediated degradation from direct enzymatic reactions by insects. A bibliometric analysis of the exponentially growing body of literature showed that leading research is emerging from China and the USA. Analogies between natural and synthetic polymer’s degradation pathways will inform engineering robust enzymes for practical plastic bioremediation applications. By aggregating, analysing, and interpreting published insights, this review consolidates our mechanistic understanding of insects as a potential natural solution to the escalating plastic waste crisis.
Boctor, Joseph (58297884000); Pandey, Gunjan (7202575630); Xu, Wei (56568517500); Murphy, Daniel V. (7404062966); Hoyle, Frances C. (9941409700)
Nature’s Plastic Predators: A Comprehensive and Bibliometric Review of Plastivore Insects
2024
10.3390/polym16121671
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85197202322&doi=10.3390%2fpolym16121671&partnerID=40&md5=5ba733b4877e0535903298c9077aed6b
Bioplastics Innovation Hub, Food Futures Institute, Murdoch University, Murdoch, 6150, WA, Australia; Commonwealth Scientific and Industrial Research Organisation (CSIRO), Environment, Acton, 2601, ACT, Australia; SoilsWest, Centre for Sustainable Farming Systems, Food Futures Institute, Murdoch University, Murdoch, 6150, WA, Australia
All Open Access; Gold Open Access
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