Inhibition halos and protein nature of BLIS. Numbered wells contain different
neutralized CFS (1:ES195; 2:ES153; 3:ES197; 4:ES216; 5:ES198; 6:ES194). Next wells
contains Trypsin (T) or Proteinase K (P). Inhibition halos are truncated or deformed
because of the co-diffusion of proteases and bacteriocin from the next wells. The
degradation of bacteriocin result in no inhibition of Listeria. ES197 is a not bacteriocin
producer strain.