BIODEGRADABLE AND COMPOSTABLE definitions refer to all those materials that, due to their molecular structure, can be assimilated by the microorganisms present in the environment. The biggest difference between them lies on the human intervention to control the biodegradation conditions in order to comply with a standard, and also if the biopolymers are valorized or not as compost.
BIODEGRADABLE polymers become nutrients or biomass naturally in different environments such as soil, water, seawater or anaerobic digestion. It is a longer and gradual process that does not require any human intervention to modify the biodegradation conditions .
COMPOSTABLE materials are transformed into compost (organic fertilizer) either at industrial compost plants, home composting containers, either in soil, under certain controlled conditions (timeframe, temperature, humidity, microorganisms). Thanks to this, degradation times are faster and the material is revalued as compost.
All compostable materials are biodegradable but a biodegradable material may or may not be compostable.
Several national and international standards exist to evaluate compostability, for example EN 13432:2000 or ASTM D6400-12 for industrial compost and EN 17033 for agricultural film.
INZEA® Biopolymers are compostable under EN 13432 and ASTM D6400-12 standards.