In contrast, the same trays could be
disposed of in a compost plant if they were made of expanded PLA
(EPLA) (or other suitable biopolymers). In this way, that contamination
due to the prolonged contact with the meat-content would no longer
represent a problem. Biodegradability is, in fact, one of themain reasons
for the interest in biopolymers, because it answers to the need and urgency
of environmentally sounding disposal scenarios.