Since the current three top-level comments are all the exact same environmental complaint, all without having actually read the link, here are the relevant quotes:

> In the course of its digestion process, the microbe turns those aromatic compounds into 2-pyrone-4,6-dicarboxylic acid—more manageably known as PDC.

> It would be an attractive plastic alternative—one that would break down naturally in the environment, and wouldn't leach hormone-mimicking compounds into water