Polyhydroxyalkanoates (PHAs) are a group of biodegradable plastics produced by microorganisms as a form of energy storage. They are synthesized from renewable resources, such as plant sugars, and can be used in various applications, including packaging, medical devices, and agricultural films. PHAs are environmentally friendly alternatives to conventional plastics, as they break down naturally in the environment. Their properties can be tailored for specific uses, making them versatile materials. Research into PHAs is ongoing, focusing on improving production methods and expanding their applications in sustainable practices.