Poly(β-hydroxybutyrate) is widely used in the production of biodegradable plastics, making it an essential material in reducing environmental pollution caused by conventional plastics. It is employed in packaging materials, particularly for food and beverages, due to its non-toxic and compostable nature. In the medical field, it is utilized to create sutures, implants, and drug delivery systems, as it is biocompatible and can be absorbed by the body without adverse effects. Additionally, it is used in agriculture for mulch films and controlled-release fertilizers, enhancing soil health and reducing waste. Its versatility and eco-friendly properties make it a promising material in sustainable industries.