Bioplastics from waste biomass of marine and poultry industries

Arif, Amna; Azeem, Farrukh; Rasul, Ijaz; Siddique, Muhammad Hussnain; Zubair, Muhammad; Muneer, Faizan; Zaheer, Warda; Nadeem, Habibullah

doi:10.1007/s12038-023-00332-8

Cited by 12 publications

(1 citation statement)

References 115 publications

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“…They are usually renewable, biodegradable, compostable, and environment friendly, such as polyhydroxyalkanoates (PHAs) ( Khatami et al, 2021 ), Mater-bi ® ( Magni et al, 2020 ). Definition of bioplastic is not consensual, however based on the sources, bioplastics could be classified into: the bio-based and biodegradable polymers; the bio-based but bio-nondegradable, and the biodegradable polymers synthesized chemically ( Arif et al, 2023 ). Though (compostable) bioplastics still represent less than 0.5% of global plastics production ( Bioplastics, 2023 ), the global demand for the bioplastics is growing rapidly.…”

Section: Introductionmentioning

confidence: 99%

Current advances in the structural biology and molecular engineering of PETase

Liu,

Wang,

Yang

et al. 2023

Front. Bioeng. Biotechnol.

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Poly(ethylene terephthalate) (PET) is a highly useful synthetic polyester plastic that is widely used in daily life. However, the increase in postconsumer PET as plastic waste that is recalcitrant to biodegradation in landfills and the natural environment has raised worldwide concern. Currently, traditional PET recycling processes with thermomechanical or chemical methods also result in the deterioration of the mechanical properties of PET. Therefore, it is urgent to develop more efficient and green strategies to address this problem. Recently, a novel mesophilic PET-degrading enzyme (IsPETase) from Ideonella sakaiensis was found to streamline PET biodegradation at 30°C, albeit with a lower PET-degrading activity than chitinase or chitinase-like PET-degrading enzymes. Consequently, the molecular engineering of more efficient PETases is still required for further industrial applications. This review details current knowledge on IsPETase, MHETase, and IsPETase-like hydrolases, including the structures, ligand‒protein interactions, and rational protein engineering for improved PET-degrading performance. In particular, applications of the engineered catalysts are highlighted, including metabolic engineering of the cell factories, enzyme immobilization or cell surface display. The information is expected to provide novel insights for the biodegradation of complex polymers.

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Section: Introductionmentioning

confidence: 99%