Development of a kinetic model to describe six types of symbiotic interactions in a formate utilizing microalgae-bacteria cultivation system

This study investigated an algae/formate-utilizing-bacteria system that has been developed for carbon capture. photomixotrophic consortium consumed formate to support bacterial growth so the resulting respiration CO2 could be simultaneously used by algae avoid gas-lipid mass transfer limitation. To understand biomass and population interactions in this unique system, a kinetic model describe bacteria multiplication, nitrogen utilizations, transfer, O2 generation consumption, lighting condition shading effect. The simulation indicated ecosystem form six types of (mutualism, commensalism, parasitism, neutralism, amensalism, competition) depending on light intensity nutrient availability. both batch culture chemostat, along with parameter sensitivity tests experimental observations, offered insights into optimal applications algae-bacteria based photobiorefinery.