Researcher Spotlight: Emma Määttä, University of Oulu

We are excited to share a glimpse into the research being conducted by doctoral researcher Emma Määttä at the University of Oulu, supervised by Juho Sirviö, focusing on a supramolecular interaction-driven fractionation process of lignocellulose. This research is pioneering new methods that could revolutionize how we process lignocellulose!

Emma’s research explores a novel cooking method fundamentally different from traditional techniques. By maximizing the interaction between  lignin and the cooking solution through supramolecular interactions, this approach aims to efficiently separate lignin from  wood fibers under milder conditions. This innovative method could lead to more efficient and environmentally friendly pulping processes, with a higher yield of usable lignin and fiber.

A unique aspect of this research is its use of  eutectic  solvents, specifically designed to lower melting points when different chemicals interact, thereby enhancing the separation process. By experimenting with  phenolic compounds like  thymol, derived from thyme, which can be synthesized or sourced naturally, Emma is investigating how these solvents can optimize the fractionation of various wood types and processed fibers. The use of thymol offers an additional advantage: it produces fibers that are so light in color that they do not require bleaching. This reduces the need for harsh chemicals in the pulping process, aligning perfectly with the program’s goal of minimizing environmental impact while optimizing the efficiency of fiber production.

Also, this research not only looks at the practical aspects of lignin separation but also delves into the theoretical understanding of the chemical interactions involved. By doing so, Emma’s work aims to provide deeper insights into the underlying mechanisms, potentially leading to the development of more sustainable and efficient pulping technologies.

We look forward to seeing how this innovative approach will contribute to the field of sustainable pulping and the broader application of green chemistry in industrial processes!