Table 3.

Various literature reports on plastic biodegradation by psychrophilic and halophilic microorganisms.

Plastic Degradation Type	Polymer	Microorganism	Isolation Source	Physico-Chemical Parameters of Environment	Effectiveness of Degradation	Reference
Non-biodegradable	Polyethylene (72.2%) + PP (18.0%) and PS (2.8%)	Cyanobacteria (Calothrix, Pleurocapsa, Phormidium), Erythrobacter	Western Mediterranean Sea	3.87% salinity	not reported	[68]
	Polystyrene	Community, Erythrobacter	Black Sea water	1.86% salinity	not reported	[70]
	Polyurethane	Community	Baltic Sea	10 °C, pH 8.0, 1.86% salinity	19% weight loss for PU-A, 4% weight loss for PU-B after 12 months	[75]
Biodegradable	Polycaprolactone	Shewanella, Moritella, Psychrobacter, and Pseudomonas	Kurile and Japan Trenches	depth of 5000–7000 m, 4 °C	not reported	[76]