Fig. 4From: Resistance to bacteriocin Lcn972 improves oxygen tolerance of Lactococcus lactis IPLA947 without compromising its performance as a dairy starterDecrease of pH in L. lactis IPLA947 (black squares) and the Lcn972R mutant L. lactis R5 (white squares) in aerated cultures in milk. Results are the average of two independent cultures. Error bars are standard deviations. (*) P < 0.05, significantly different from L. lactis IPLA947Back to article page