**About the Editors**

**David Baxter** is a Materials Engineer who joined the European Commission Joint Research Centre in 1991 after working in an industrial company supplying components for power generation and transport. He has been a member of the Sustainable Transport Unit in the Institute for Energy & Transport of the Joint Research Centre (Petten, The Netherlands) until retirement from the European Commission in August 2016. He was part of a team providing scientific and technical support to the development and maintenance of sustainability schemes for biomass and bioenergy, including biofuels, as well as member of the European Bioenergy Industrial Initiative (EIBI) team. He is a former chair of the scientific committee and one of the scientific organisers of the European Biomass Conference and Exhibition (EUBCE) over the last decade. He is also a former leader of the International Energy Agency Bioenergy Biogas Task 37, promoting economically and environmentally sustainable managemen<sup>t</sup> of biogas production and utilization from agricultural residues, energy crops and municipal wastes.

**Solange I. Mussatto** is Professor and Head of the Research Group "Biomass Conversion and Bioprocess Technology" at the Technical University of Denmark. Her group conducts research in interdisciplinary areas including biotechnology, chemical engineering and sustainability, with the aim of creating innovative processes/solutions able to accelerate the development of a bioeconomy, with potential environmental, economic and social benefits (see more at: www.bcbtgroup.com). She is a reference person in the areas of bioeconomy and biorefinery, being the Danish representative in IEA Bioenergy Task 42—Biorefining in a Future Bioeconomy, and vice-chair of the Bioenergy and Bioeconomy section in the European Society of Biochemical Engineering Sciences. In 2020, she was ranked in the top 2% of scientists in the world (no. 1 in Denmark within the sub-field of biotechnology) in terms of career-long citation impact. She is/has been Editor of several scientific journals in her areas of specialization and also has active participation on the advisory boards of several leading international funding agencies.
