(73a) Dynamics and Coexistence in Biochemical Engineering for Applications Conference: AIChE Annual MeetingYear: 2015Proceeding: 2015 AIChE Annual MeetingGroup: Food, Pharmaceutical & Bioengineering DivisionSession: In Honor of Greg Stephanopoulos's 65th Birthday I Time: Monday, November 9, 2015 - 8:35am-9:05am Authors: Davison, B. H., BioEnergy Science Center and Oak Ridge National Laboratory Speaker: Brian H. DAVISON, Chief Scientist for Systems Biology and Biotechnology and Science Coordinator for Bioenergy Science Center, Oak Ridge National Laboratory, Dynamics and Coexistence in BioChemical Engineering for applications. Early work in the Stephanopoulos lab examined mixed microbial cultures and how to maintain diverse competing populations to maintain productivity. We showed through modeling and experiment that productive stability could be maintained in chemostats via allowing fluctuations in time, space and retention. I will explore how these lessons influenced my work in multiphase bioprocessing systems (such as immobilized cell reactors and extractive bioreactors), the linkage of modeling and experiment in biomass conversion systems into biofuels and bioproducts. I will also touch on “lessons” from mixed cultures on diversity in science, community service, and leading team science.