AUTHOR=Zinn Manfred , Egli Thomas , Herwig Christoph , Narang Atul TITLE=Editorial: Recent Advances in Continuous Cultivation JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2021.641249 DOI=10.3389/fbioe.2021.641249 ISSN=2296-4185