Figure 1

Final optical densities (OD 600 nm) of B. breve UCC2003, UCC2003ΔnagA1, UCC2003ΔnagA2 or UCC2003ΔnagA1ΔnagA2 following 24 hours growth in mMRS medium supplemented with lactose, sialic acid, LNT, LNnT or GlcNAc-6-S at 0.5% w/v final concentration.