Of special interest are those plastics that are biobased and
biodegradable, such as polyhydroxyalkanoates [5] (PHA), which
can be employed for short-life applications such as packaging
[6], certain agricultural applications [7] and bags suitable for
organic recycling, although more sophisticated uses of PHA have
also recently been reported (tissue repair and regeneration, drug
delivery systems or heart tissue engineering) [8,9