At a new plant in Iowa, Metabolix will use bacteria to turn corn into biodegradable plastics.
A gene from the bacterium R. eutropha, turned out to code for an enzyme that allows bacteria to produce polyhydroxyalkanoate (PHA),a naturally occurring form of polyester
(Bacteria normally manufacture PHA as a way to store carbon and energy.)
bioplastics have been commercially available for about a decade, mostly in the form of plastic cups, bottles and food packaging. Most of those products are made from a type of plastic called polylactic acid (PLA), which is also produced from corn. PLA is similar to PHA, but PHA has higher heat resistance
Metabolix: Bio-industrial Evolution
"Working to create a new generation of highly versatile, sustainable, environmentally-friendly plastics and chemicals."