Superabsorbent materials (SAMs) are specialised substances capable of absorbing and retaining water in amounts exceeding ten times their own dry weight. These materials are vital for essential products such as diapers, menstrual pads, wound dressings, and soil conditioners for agriculture. However, a significant environmental challenge exists because most commercially available SAMs are derived from petroleum and are difficult to degrade. Furthermore, their breakdown products can be biologically toxic, contributing to environmental pollution.
The superbiOmAT project addresses this challenge by developing sustainable, bio-based superabsorbent alternatives derived from oat protein (OP). Oats are a major crop in the European Union, which is a global leader in its production. Specifically, the project utilises OP, which is an under-exploited by-product remaining after the extraction of health-promoting β-glucans. By revalorising this by-product, superbiOmAT promotes a circular economy and aligns with the strategic goals of the European Green Deal and the United Nations Sustainable Development Goals.
The overall objective of the project is to develop green superabsorbent biomaterials. This is achieved through three scientific pathways: increasing the water-binding capacity of the protein through chemical functionalisation, processing the material using advanced techniques like electrospinning and 3D printing, and evaluating the performance of these new materials in practical applications like agriculture and hygiene.