A Critical Review of the Performance and Soil Biodegradability Profiles of Biobased Natural and Chemically Synthesized Polymers in Industrial Applications

This review explores biobased polymers for industrial applications, their end fate, and most importantly, origin and key aspects enabling soil biodegradation. The physicochemical properties of biobased synthetic and natural polymers and the primary factors governing degradation are explored. Current...

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Bibliographic Details
Published in:Environmental science & technology 2022-02, Vol.56 (4), p.2071-2095
Main Authors: Tyagi, Preeti, Agate, Sachin, Velev, Orlin D, Lucia, Lucian, Pal, Lokendra
Format: Article
Language:English
Subjects:
Biodegradability
Biodegradation
Biodegradation, Environmental
Biopolymers
Biopolymers - chemistry
Biopolymers - metabolism
Composting
Industrial applications
Microorganisms
Natural polymers
Physicochemical properties
Plastics
Polymers
Side effects
Soil
Soil properties
Soils
Toxicity
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Summary:This review explores biobased polymers for industrial applications, their end fate, and most importantly, origin and key aspects enabling soil biodegradation. The physicochemical properties of biobased synthetic and natural polymers and the primary factors governing degradation are explored. Current and future biobased systems and factors allowing for equivalent comparisons of degradation and possible sources for engineering improved biodegradation are reviewed. Factors impacting ultraviolet (UV) stability of biopolymers have been described including methods to enhance photoresistance and impact on biodegradation. It discusses end-fate of biopolymers in soil and impact of residues on soil health. A limited number of studies examine side effects (e.g., microbial toxicity) from soil biodegradation of composites and biopolymers. Currently available standards for biodegradation and composting have been described with limitations and scope for improvements. Finally, design considerations and implications for sustainable polymers used, under consideration, and to be considered within the context of a rational biodegradable strategy are elaborated.
ISSN:0013-936X
1520-5851
DOI:10.1021/acs.est.1c04710