Enzyme-mediated plastics are not bioplastics. They are not bio-based and they are not proven to be biodegradable or compostable in accordance with any standard*. Enzyme-mediated plastics are conventional, non-biodegradable plastics (e.g. PE) enriched with small amounts of an organic additive. The degradation process is supposed to be initiated by microorganisms, which consume the additives. It is claimed that this process expands to the PE, thus making the material degradable. The plastic is said to visually disappear and to be completely converted into carbon dioxide and water after some time, which could not yet been proven by any available study.
* “Biodegradability” refers to a process during which microorganisms from the environment convert materials into natural substances such as water, carbon dioxide and biomass without the use of artificial additives.