The Journal of Biosystems Engineering & Sustainable Technologies (BEST) was established in 2024 by Bu-Ali Sina University. BEST is dedicated to providing a multidisciplinary, unique platform for researchers, scientists, engineers, technology developers, planners, and policy makers to present their research results and findings in a compelling manner on novel biosystems, sustainable Technologies and applications. BEST is a journal of technical, environmental, cultural, economic and social sustainability of human beings, which provides an advanced forum for studies related to sustainability and sustainable development. BEST covers the entire spectrum of energy from production to conversion, conservation, management, systems, technologies, etc. We encourage paper submissions aiming at better efficiency, cost improvements, more effective resource use, improved design and analysis, and reduced environmental impact. Authors can only submit their articles in English.