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Annual Review of Chemical and Biomolecular Engineering

Volume 13, 2022

Lessons from Biomass Valorization for Improving Plastic-Recycling Enzymes

Abstract

Synthetic polymers such as plastics exhibit numerous advantageous properties that have made them essential components of our daily lives, with plastic production doubling every 15 years. The relatively low cost of petroleum-based polymers encourages their single use and overconsumption. Synthetic plastics are recalcitrant to biodegradation, and mismanagement of plastic waste leads to their accumulation in the ecosystem, resulting in a disastrous environmental footprint. Enzymes capable of depolymerizing plastics have been reported recently that may provide a starting point for eco-friendly plastic recycling routes. However, some questions remain about the mechanisms by which enzymes can digest insoluble solid substrates. We review the characterization and engineering of plastic-eating enzymes and provide some comparisons with the field of lignocellulosic biomass valorization.

Keyword(s): biomass valorization, enzymatic degradation, enzymatic depolymerization, enzyme engineering, plastic recycling
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/content/journals/10.1146/annurev-chembioeng-092120-091054
2022-06-07
2024-04-20
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/content/journals/10.1146/annurev-chembioeng-092120-091054
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Lessons from Biomass Valorization for Improving Plastic-Recycling Enzymes
Annual Review of Chemical and Biomolecular Engineering 13, 457 (2022); https://doi.org/10.1146/annurev-chembioeng-092120-091054
/content/journals/10.1146/annurev-chembioeng-092120-091054
/content/journals/10.1146/annurev-chembioeng-092120-091054
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