Polyhydroxyvalerate (PHV) is a type of biopolymer that belongs to the family of polyhydroxyalkanoates (PHAs). It is produced by certain bacteria as a form of energy storage and is biodegradable, making it an environmentally friendly alternative to conventional plastics. PHV can be used in various applications, including packaging, medical devices, and agricultural films. The production of PHV typically involves the fermentation of renewable resources, such as plant oils or sugars. Its properties can be tailored by adjusting the fermentation conditions, allowing for a range of physical characteristics suitable for different uses. As interest in sustainable materials grows, PHV is gaining attention for its potential to reduce plastic waste.