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Biodegradable Plastics from Agriculture
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Polyhydroxyalkanoates (PHAs)
Agricultural source: Microbial fermentation of sugars from corn or canola. Degradation process: Microbial and enzyme-mediated breakdown in various environments (soil, marine, compost).
Polybutylene Adipate Terephthalate (PBAT)
Agricultural source: Partially derived from bio-based materials such as corn starch. Degradation process: Microbial degradation in a composting environment.
Polylactic Acid (PLA)
Agricultural source: Corn starch or sugarcane. Degradation process: Hydrolysis into lactic acid under industrial composting conditions.
Starch-based Blends
Agricultural source: Potato or maize starch. Degradation process: Microbial digestion at room temperature or home composting.
Polybutylene Succinate (PBS)
Agricultural source: Derived from sucrose or glucose from sugarcane or sugar beets. Degradation process: Microbial breakdown in composting systems.
Thermoplastic Starch (TPS)
Agricultural source: Directly derived from native starch from crops like potato, wheat, or corn. Degradation process: Hydrolysis and microbial digestion in a moist environment.
Polyvinyl Alcohol (PVOH, PVA)
Agricultural source: Produced from the polymerization of vinyl acetate monomer derived from ethylene, which can be produced from bio-ethanol from sugar crops. Degradation process: Water-soluble and film can be consumed by microorganisms.
Polycaprolactone (PCL)
Agricultural source: Can be synthesized from glucose via ring-opening polymerization. Degradation process: Slow microbial degradation in soil or compost.
Polyglycolic Acid (PGA)
Agricultural source: Produced from bio-based glycolic acid, which can be derived from sugarcane. Degradation process: Hydrolytic degradation followed by microbial consumption.
Bio-Polyethylene (Bio-PE)
Agricultural source: Derived from bio-ethanol produced from sugar cane. Degradation process: Subject to photodegradation and limited biodegradation under certain conditions.
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