Figure 2From: Co-cultivation of Lactobacillus zeae and Veillonella criceti for the production of propionic acid Section of the CSTR experiment with the co-culture of L. zeae and V. criceti . At constant dilution rate and YP-concentration the glucose concentration in the feed was doubled (shift from ST 1 to ST 2, see Table 2). L. zeae adapted faster to the new growth conditions (phase 1), but after more than 10 medium exchanges a stable steady state was reached.Back to article page