Neat PHA Resins

The circular economy is a sustainable approach that aims to keep materials in use for as long as possible by reducing waste, reusing resources, and recycling products at the end of their life. This means designing materials that are made from renewable biological resources and can be reused, recycled, composted, or biodegraded in appropriate systems. Bioplastics in a circular economy are intended to minimize environmental impact, reduce dependence on fossil fuels, and return valuable materials or nutrients back into the production cycle whenever possible.

Sugarcane is one of the most widely used renewable feedstocks for the production of polyhydroxyalkanoates (PHAs), a family of biodegradable bioplastics produced by microorganisms. During the production process, sugars extracted from sugarcane are fermented by bacteria, which convert the carbon-rich substrate into PHA as an intracellular energy storage material. Because sugarcane is a fast-growing, renewable crop with high sugar content, it provides an efficient and sustainable carbon source for microbial fermentation. Using sugarcane as a feedstock can reduce reliance on petroleum-based raw materials while supporting the production of biodegradable plastics with a lower environmental footprint.

As biodegradable and, in many cases, compostable bioplastics, PHAs can be broken down by naturally occurring microorganisms into carbon dioxide, water, and biomass under appropriate conditions. Unlike many other compostable bioplastics that require industrial composting facilities, PHAs have demonstrated the ability to biodegrade in a wider range of environments, including industrial and home compost, soil, freshwater, and marine ecosystems. However, the rate of degradation depends on factors such as temperature, moisture, microbial activity, and the specific PHA formulation. While PHAs offer improved end-of-life options compared with conventional plastics, proper waste management and composting infrastructure remain important to maximize their environmental and circular economy benefits.