Enhancement of Vitamin K2 Efflux in Bacillus subtilis Natto via a Potential Protein Receptor for Increased Yield

Figure 4

Changes in the concentration of MK-7 for Bacillus subtilis natto and Bacillus subtilis BslA in a 20 L biofilm reactor at 40°C, pH 8.0, 450 rpm, and 2.0 vvm.