A little about oxo-biodegradable plastics:

An oxo-biodegradable plastic is concepted for quick decay;  it has a relatively short lifespan. But an oxo-biodegradable plastic is not a vegetal plastic! It is a classical plastic mixed with oxidizing additives accelerating its destruction. Those plastics are neither biodegradable nor vegetal-based. They reject harmful substances in the environment when degrading.

Vegetal-based plastics :

Those plastics are made of variable rate of vegetal material (sometimes up to 50%) which means that they are neither biodegradable nor recyclable because they are made of different kind of materials. Bioplastics produce 68% less greenhouse gases than oil-based products.

Def:

Bio plastics: it is a material partly made from renewable resources

Renewable resources: it is a natural resource in which the stock is reconstituted at least as fast as it is used

Biopolymers: polymers directly coming from live resources. Example: starch, cellulose, proteins

Agro polymers: agro polymers are mostly made of raw materials coming from agriculture

Biodegradable: ability to degrade naturally under the influence of micro organism and to be transformed into simple elements (carbon dioxide, water). The adjective biodegradable is ruled by regulations about the environment, the time and the level of degradation to reach (regulation EN3432)

Compostable: ability to be biodegraded in an industrial composter and being used as compost for agricultural applications.

Oxo-biodegradable: ability to fragment under the action of an oxidising agent (included in the material) and/or the action of UV and/or heat. It is neither biodegradable nor compostable.