Since LfcinB was the only antimicrobial peptide released by BLF hydrolysis, we assessed its stability in the governing liquid during seven days of cold storage when added as LFH. As shown in Fig. 3, LfcinB decreased exponentially in all samples with an average half-life of about four days. It was not possible to draw the LfcinB kinetics in HM Mozzarella cheese supplemented with 10 mg ml 1 as its amount was not detectable already after 24 h of cold storage.