Bioconversion of plastic waste based on mass full carbon backbone polymeric materials to value-added polyhydroxyalkanoates (PHAs)

B Johnston, G Adamus, AI Ekere, M Kowalczuk… - Bioengineering, 2022 - mdpi.com
Bioengineering, 2022mdpi.com
This review article will discuss the ways in which various polymeric materials, such as
polyethylene (PE), polypropylene (PP), polystyrene (PS), and poly (ethylene
terephthalate)(PET) can potentially be used to produce bioplastics, such as
polyhydroxyalkanoates (PHAs) through microbial cultivation. We will present up-to-date
information regarding notable microbial strains that are actively used in the biodegradation
of polyolefins. We will also review some of the metabolic pathways involved in the process of …
This review article will discuss the ways in which various polymeric materials, such as polyethylene (PE), polypropylene (PP), polystyrene (PS), and poly(ethylene terephthalate) (PET) can potentially be used to produce bioplastics, such as polyhydroxyalkanoates (PHAs) through microbial cultivation. We will present up-to-date information regarding notable microbial strains that are actively used in the biodegradation of polyolefins. We will also review some of the metabolic pathways involved in the process of plastic depolymerization and discuss challenges relevant to the valorization of plastic waste. The aim of this review is also to showcase the importance of methods, including oxidative degradation and microbial-based processes, that are currently being used in the fields of microbiology and biotechnology to limit the environmental burden of waste plastics. It is our hope that this article will contribute to the concept of bio-upcycling plastic waste to value-added products via microbial routes for a more sustainable future.
MDPI
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