Table 9.1

Different types of microbial enzymes responsible for the degradation of different types of plastics.

Characteristics

Types of plastics

Recycling

Type of polymer

Microorganisms involved

Enzymes involved

References

PET

Yes

Polyethylene monomer

Ideonella sakaiensis 201-F6

PETase, MHETase, α- or

β-hydrolase, lipase

[20]

LDPE

Yes

Polyethylene monomer

Acinetobacter sp. 351,

Pseudomonas sp. AKS2,

Pseudomonas stutzeri,

Brevibacillus, Aspergillus,

Pseudomonas sp. E4, Aspergillus

japonicas, Aspergillus terreus,

Streptomyces setnoii, Streptomyces

badius, Streptomyces viridosporus

Hydrolase

[21]

HDPE

Yes

Polyethylene monomer

Klebsiella pneumonia CH001,

Bacillus sp. BCBT21,

Pseudomonas putida S3A,

Arthrobacter sp., Aspergillus

flavus, Comamonas acidovorans,

Rhodococcus, Penicillium

oxalicum NS4

Cutinase, lipase

[22]

PVC

Yes

Vinyl chloride monomer

Staphylococcus, Klebsiella,

Micrococcus, Pseudomonas

putida AJ, Chaetomium

Catalase, peroxidase,

laccases

[23]

PS

Yes

Styrene monomer

Actinomycetes, Pseudomonas sp.

Alkene mono-oxygenase,

Esterase

[24]

PP

Yes

Propylene monomer

Brevibacillus, Rhodococcus,

Bacillus, Aneurinibacillus,

Rhizopus oryzae, Phanerochaete

chrysosporium

Lipase

[25]

Others

Partial

Ethylene monomers,

nylon

Pseudomonas sp.

Nylon hydrolase

[26]

Source: Jaiswal et al. [17].