Dr. Karen Trchounian received his Ph.D. Biophysics and Biotechnology from Yerevan State University (YSU), Armenia, in 2013. Afterward, he obtained a Doctor of Science degree in Biochemistry in 2017. He is currently a Professor at the Department of Biochemistry, Microbiology, and Biotechnology at YSU. His main research areas are environmental regulation of bacterial growth and metabolism, hydrogenase activity and hydrogen production by bacteria, bioenergetics of fermentation, biomass, and bioenergy generation from various agroindustrial wastes. He has been awarded numerous research fellowships and awards, including FEBS Short-Term Fellowship (2010), FEMS Research Fellowship (2012), DAAD (2012, 2015, 2019). Currently, he is ASM Ambassador in Armenia. He has a big collaboration network, and he spends research stays in Germany (Martin Luther University of Halle-Wittenberg, University of Konstanz), Netherlands (Wageningen University), etc. He is an editor and editorial board member of Scientific reports, BMC Microbiology, and other international journals. He has published more than 100 research papers and reviews.