Absolutely not, these biodegradable plastics will only breakdown in exact perfect circumstances and still take many years even when the specific conditions are met, this will not happen in land fill, in the sea or road/hedge side discarded bottles. Some plant-based plastics leach nasty chemicals into the ground as they degrade. When any type of plastic finds its way into the sea it will eventually find its way into the food chain through fish as tiny micro particles. Biodegradable plastics contaminate Recycling centre plastics because the material is not reusable.