In order to attest the degradability of the Whey when applied on
a film they were performed both disintegration and mineralization
tests. For disintegration tests, PLA and PLA/Whey layer film samples
were buried in compost according to ISO 20200, Plastics e Determination
of the degree of disintegration of plastic materials under
simulated composting conditions in a laboratory-scale test. The
composition of the synthetic compost soil is reported in Table 1