Polyhydroxybutyrate (PHB) is a polyhydroxyalkanoate (PHA), a polymer belonging to the polyesters class that are of interest as bio-derived and biodegradable plastics. [1]

Jun 14, 2025 · PHB is a thermoplastic with a melting point of approximately 175°C. It can be melted and molded into various shapes using conventional plastic manufacturing equipment. …

PHB is produced by microorganisms (such as Ralstonia eutropha or Bacillus megaterium) apparently in response to conditions of physiological stress.

PHB is water insoluble and relatively resistant to hydrolytic degradation. This differentiates PHB from most other currently available biodegradable plastics, which are either water soluble or …

Dec 15, 2017 · Recent developments in blends and composites of PHB with other polymers and fillers are discussed in terms of structure-property relationships and applications. Their …

Polyhydroxybutyrate (PHB) is a type of biopolymer produced by certain bacteria as an energy storage compound. It is a member of the polyhydroxyalkanoate (PHA) family and serves as an …

Here we describe the structure and biochemistry of an alkaline poly [ (R)-3-hydroxybutyric acid] (PHB) depolymerase from the soil thermophile Lihuaxuella thermophila.

Nov 7, 2020 · This review examines the chemical, mechanical, thermal, and crystalline characteristics of PHB, as well as various fermentation processing factors which influence the …

Dec 1, 2024 · Consequently, this review has been meticulously crafted to encompass a broad spectrum of topics, ranging from PHA and PHB classifications to examining related enzymes …

Here we describe the structure and biochemistry of an alkaline poly [ (R)‐3‐hydroxybutyric acid] (PHB) depolymerase from the soil thermophile Lihuaxuella thermophila.