Introduction
Nowadays, plastics are one of the most used materials
because of their versatility and material properties, espe-
cially as packaging materials due to their durability and
resistance to degradation. However, these properties have
a very high environmental impact. Consequently, bio-
polymers such as polyhydroxyalkanoates (PHAs) that are
produced by several micro-organisms are an attractive
alternative to conventional plastics, not just because they
are 100% biodegradable, but because they can beproduced from renewable resources.