WOBURN, Mass. (AP) — At a Massachusetts lab, pebble-sized pellets are transformed into forks and films that won't leave persistent microplastics in the environment.These are bioplastic pellets. CJ Biomaterials ferments sugar to make plant-based polymers that microbes will consume. These alternatives to traditional plastics made of fossil fuels are seen by some as one of many solutions needed to confront global plastic pollution.At the company's …