polyhydroxybutyrat
Polyhydroxybutyrate, often abbreviated as PHB, is a type of polyester that belongs to the polyhydroxyalkanoate (PHA) family of polymers. PHAs are naturally occurring bioplastics that are synthesized by various microorganisms. These bacteria produce PHB as a way to store carbon and energy. Under favorable conditions, the bacteria accumulate PHB as intracellular granules. When conditions become unfavorable, such as nutrient limitation, the bacteria can then metabolize the stored PHB.
PHB is a biodegradable and biocompatible material. Its biodegradability means that it can be broken down by
The physical properties of PHB are similar to those of polypropylene, a common petrochemical plastic. It is
Applications for PHB and other PHAs are being developed in areas such as packaging, disposable cutlery, and