Polyhydroxyalkanoates (PHA) are melt-processable, semi-crystalline thermoplastics produced from microorganisms by fermentation of renewable carbohydrate feedstocks. PHAs are 100% biobased, truly biodegradable and biocompatible, and could be an attractive environmental-friendly alternative to fossil-based thermoplastics such as PE and PP. In fact, some grades of additivated PHA are similar in their material properties to polypropylene (PP), and possess good resistance to moisture and aroma barrier properties.