Dr. Deepak Kumar is an Assistant Professor in the Chemical Engineering Department at State University of New York College of Environmental Science and Forestry (SUNY-ESF); he is also a research scientist at the Carl R. Woese Institute for Genomic Biology at the University of Illinois. His research focuses on bioplastics, biofuel, and value-added products production from agro-processing waste and non-food sources and sustainability analysis. He has published 35 peer-reviewed articles and 6 book chapters with over 1000 citations and an H-index of 12. Dr. Sachin Kumar is a Deputy Director in the Biochemical Conversion Division at the Sardar Swaran Singh National Institute of Bioenergy, Kapurthala, India. He was a Visiting Professor in the Department of Chemical and Biological Engineering at South Dakota School of Mines and Technology, Rapid City, USA. He obtained his Ph.D. in Chemical Engineering from the Indian Institute of Technology, Roorkee, India and has more than fifteen years of research experience in Biochemical Conversion of Biomass to Biofuels including lignocellulosic ethanol, biogas, biohydrogen, etc. He has completed six research projects and one consultancy project and is actively engaged in two on-going research projects. Dr. Sachin has published more than 55 papers in peer reviewed journals, book chapters and papers in conference proceedings and 7 edited books. He has one granted US patent and one filed Indian patent. He is a recipient of the 2016 ASM-IUSSTF Indo-US Research Professorship and selected as Bioenergy-Awards for Cutting Edge Research (B-ACER) Fellow 2016 by DBT and IUSSTF. Dr. Karthik Rajendran is currently Assistant Professor in the Department of Environmental Science at SRM University, Andhra Pradesh, India. His research focuses on techno-economic analysis, biofuels, and bioenergy systems, systems design, and integrative sustainability metrics. He has published more than 40 articles and 15 chapters to date. He also holds a patent on the biogas measurement system and served as a guest editor in Frontiers in Energy Research.