Fig. 2

Principal Component Analysis (PCA) of exometabolome profiles at 101 h for cultures of axenic S. elongatus (Se axenic), S. elongatus units of the membrane separated bioreactors (Se 2-mBR and Se 3-mBR, respectively), R. toruloides inits of the mBRs (Rt 2-mBR and Rt 3-mBR, respectively), middle unit of the 3-unit mBR (mddl 3-mBR), and S. elongatus – R. toruloides same-volume mixed co-culture (Se-Rt mixed). Each circle represents a biological replicate (n = 3 for each condition).