Dr. Abu Yousuf is a Research Associate in the School of Aerospace and Mechanical Engineering, University of Oklahoma, in the United States. He holds a PhD in Chemical Engineering from the University of Naples Federico II, Italy. His primary research interests include renewable energy, biorefinery, energy storage and waste-to-energy, and he is currently working with protonic ceramic fuel cells at the University of Oklahoma. Dr. Yousuf has published over 65 papers in reputed ISI and Scopus-indexed journals, 19 conference papers and 15 book chapters, and is the Editor of 5 books, as well as serving as an editorial board member for several reputed journals. He received the Dean’s Award from Shahjalal University of Science and Technology, Bangladesh, in 2019 and 2021, for his research, and won the ‘International invention of the year award’ at the British Invention Show, London, UK in 2017, for his work on Hybrid Energy Generation for Highway Lighting Systems.Cristina Gonzalez-Fernandez received her PhD degree in Chemical Engineering and Environmental Technology at the University of Valladolid (2008). She carried out her doctoral thesis in the field of livestock wastes treatment for the removal of organic matter by means of mechanical and photosynthetic oxygenation on the liquid matrix and biogas production on the solid matrix. Previously to that, she worked at the Environmental Engineering Department in the University of Cincinnati (USA) where she also obtained a Master on Environmental Science (2005). She got a postdoc position at the Biotechnology Lab in the French National Institute for Agricultural Research (LBE-INRA, France) to work on the optimization of biogas production using microalgae. Nowadays, her research is focused on the recovery of carbon from wastes via biotechnological means. She is co-author of around 100 scientific publications and reviewer of international journals. Additionally, she has been involved in European and national funded research projects, as well as projects with private companies. She has supervised 5 PhD Thesis, and 20 Master Thesis and Final Year Projects. Today, Cristina González is Associate Professor at the Dept. of Chemical Engineering and Environmental Technology of Valladolid University.

• 1. Conversion pathways for biomass-derived aviation fuels Ahasanul Karim, M. Amirul Islam, Abdullah Nayeem, and Abu Yousuf2. Thermochemical conversion of agricultural waste to biojet fuel Nicolas Vela-García, David Bolonio, María-Jesús García-Martínez, Marcelo F. Ortega,and Laureano Canoira3. Conversion of lignin-derived bio-oil to bio-jet fuel Majid Saidi and Pantea Moradi4. Main feedstock for sustainable alternative fuels for aviation Vanya Marcia Duarte Pasa, Cristiane Almeida Scaldadaferri, and Henrique dos Santos Oliveira5. Advanced biorefineries for the production of renewable aviation fuel Araceli Guadalupe Romero-Izquierdo, Claudia Guti>errez-Antonio, Fernando Israel Gómez-Castro, and Salvador Hernández6. Role of catalysts in sustainable production of biojet fuel from renewable feedstocks Abu Yousuf, Md. Anisur Rahman, Mohammad Jalilur Rahman, and Md. Shahadat Hossain7. Biojet fuels and emissions Reyes García-Contreras, Jos>e A. Soriano, Arántzazu Gómez, and Pablo Fernández-Yáñez8. Governance and policy developments for sustainable aviation fuels Marina Efthymiou and Tim Ryley9. Life cycle assessment of biojet fuels Qing Yang and Fuying Chen10. Sustainability tensions and opportunities for aviation biofuel production in Brazil Mar Palmeros Parada, Wim H. van der Putten, Luuk A.M. van der Wielen, Patricia Osseweijer,Mark van Loosdrecht, Farahnaz Pashaei Kamali, and John A. Posada

Dr. Abu Yousuf is a Research Associate in the School of Aerospace and Mechanical Engineering, University of Oklahoma, in the United States. He holds a PhD in Chemical Engineering from the University of Naples Federico II, Italy. His primary research interests include renewable energy, biorefinery, energy storage and waste-to-energy, and he is currently working with protonic ceramic fuel cells at the University of Oklahoma. Dr. Yousuf has published over 65 papers in reputed ISI and Scopus-indexed journals, 19 conference papers and 15 book chapters, and is the Editor of 5 books, as well as serving as an editorial board member for several reputed journals. He received the Dean’s Award from Shahjalal University of Science and Technology, Bangladesh, in 2019 and 2021, for his research, and won the ‘International invention of the year award’ at the British Invention Show, London, UK in 2017, for his work on Hybrid Energy Generation for Highway Lighting Systems.Cristina Gonzalez-Fernandez received her PhD degree in Chemical Engineering and Environmental Technology at the University of Valladolid (2008). She carried out her doctoral thesis in the field of livestock wastes treatment for the removal of organic matter by means of mechanical and photosynthetic oxygenation on the liquid matrix and biogas production on the solid matrix. Previously to that, she worked at the Environmental Engineering Department in the University of Cincinnati (USA) where she also obtained a Master on Environmental Science (2005). She got a postdoc position at the Biotechnology Lab in the French National Institute for Agricultural Research (LBE-INRA, France) to work on the optimization of biogas production using microalgae. Nowadays, her research is focused on the recovery of carbon from wastes via biotechnological means. She is co-author of around 100 scientific publications and reviewer of international journals. Additionally, she has been involved in European and national funded research projects, as well as projects with private companies. She has supervised 5 PhD Thesis, and 20 Master Thesis and Final Year Projects. Today, Cristina González is Associate Professor at the Dept. of Chemical Engineering and Environmental Technology of Valladolid University.

• 1. Conversion pathways for biomass-derived aviation fuels Ahasanul Karim, M. Amirul Islam, Abdullah Nayeem, and Abu Yousuf2. Thermochemical conversion of agricultural waste to biojet fuel Nicolas Vela-García, David Bolonio, María-Jesús García-Martínez, Marcelo F. Ortega,and Laureano Canoira3. Conversion of lignin-derived bio-oil to bio-jet fuel Majid Saidi and Pantea Moradi4. Main feedstock for sustainable alternative fuels for aviation Vanya Marcia Duarte Pasa, Cristiane Almeida Scaldadaferri, and Henrique dos Santos Oliveira5. Advanced biorefineries for the production of renewable aviation fuel Araceli Guadalupe Romero-Izquierdo, Claudia Guti>errez-Antonio, Fernando Israel Gómez-Castro, and Salvador Hernández6. Role of catalysts in sustainable production of biojet fuel from renewable feedstocks Abu Yousuf, Md. Anisur Rahman, Mohammad Jalilur Rahman, and Md. Shahadat Hossain7. Biojet fuels and emissions Reyes García-Contreras, Jos>e A. Soriano, Arántzazu Gómez, and Pablo Fernández-Yáñez8. Governance and policy developments for sustainable aviation fuels Marina Efthymiou and Tim Ryley9. Life cycle assessment of biojet fuels Qing Yang and Fuying Chen10. Sustainability tensions and opportunities for aviation biofuel production in Brazil Mar Palmeros Parada, Wim H. van der Putten, Luuk A.M. van der Wielen, Patricia Osseweijer,Mark van Loosdrecht, Farahnaz Pashaei Kamali, and John A. Posada

Dr. Abu Yousuf is a Research Associate in the School of Aerospace and Mechanical Engineering, University of Oklahoma, in the United States. He holds a PhD in Chemical Engineering from the University of Naples Federico II, Italy. His primary research interests include renewable energy, biorefinery, energy storage and waste-to-energy, and he is currently working with protonic ceramic fuel cells at the University of Oklahoma. Dr. Yousuf has published over 65 papers in reputed ISI and Scopus-indexed journals, 19 conference papers and 15 book chapters, and is the Editor of 5 books, as well as serving as an editorial board member for several reputed journals. He received the Dean’s Award from Shahjalal University of Science and Technology, Bangladesh, in 2019 and 2021, for his research, and won the ‘International invention of the year award’ at the British Invention Show, London, UK in 2017, for his work on Hybrid Energy Generation for Highway Lighting Systems.Cristina Gonzalez-Fernandez received her PhD degree in Chemical Engineering and Environmental Technology at the University of Valladolid (2008). She carried out her doctoral thesis in the field of livestock wastes treatment for the removal of organic matter by means of mechanical and photosynthetic oxygenation on the liquid matrix and biogas production on the solid matrix. Previously to that, she worked at the Environmental Engineering Department in the University of Cincinnati (USA) where she also obtained a Master on Environmental Science (2005). She got a postdoc position at the Biotechnology Lab in the French National Institute for Agricultural Research (LBE-INRA, France) to work on the optimization of biogas production using microalgae. Nowadays, her research is focused on the recovery of carbon from wastes via biotechnological means. She is co-author of around 100 scientific publications and reviewer of international journals. Additionally, she has been involved in European and national funded research projects, as well as projects with private companies. She has supervised 5 PhD Thesis, and 20 Master Thesis and Final Year Projects. Today, Cristina González is Associate Professor at the Dept. of Chemical Engineering and Environmental Technology of Valladolid University.

• 1. Conversion pathways for biomass-derived aviation fuels Ahasanul Karim, M. Amirul Islam, Abdullah Nayeem, and Abu Yousuf2. Thermochemical conversion of agricultural waste to biojet fuel Nicolas Vela-García, David Bolonio, María-Jesús García-Martínez, Marcelo F. Ortega,and Laureano Canoira3. Conversion of lignin-derived bio-oil to bio-jet fuel Majid Saidi and Pantea Moradi4. Main feedstock for sustainable alternative fuels for aviation Vanya Marcia Duarte Pasa, Cristiane Almeida Scaldadaferri, and Henrique dos Santos Oliveira5. Advanced biorefineries for the production of renewable aviation fuel Araceli Guadalupe Romero-Izquierdo, Claudia Guti>errez-Antonio, Fernando Israel Gómez-Castro, and Salvador Hernández6. Role of catalysts in sustainable production of biojet fuel from renewable feedstocks Abu Yousuf, Md. Anisur Rahman, Mohammad Jalilur Rahman, and Md. Shahadat Hossain7. Biojet fuels and emissions Reyes García-Contreras, Jos>e A. Soriano, Arántzazu Gómez, and Pablo Fernández-Yáñez8. Governance and policy developments for sustainable aviation fuels Marina Efthymiou and Tim Ryley9. Life cycle assessment of biojet fuels Qing Yang and Fuying Chen10. Sustainability tensions and opportunities for aviation biofuel production in Brazil Mar Palmeros Parada, Wim H. van der Putten, Luuk A.M. van der Wielen, Patricia Osseweijer,Mark van Loosdrecht, Farahnaz Pashaei Kamali, and John A. Posada