Figure 2: DNA protection ability of polyamines shown by gelelectrophoresis. DLA (DNA leaking agent): 30% H2O2 with 2 mM FeSO4 solution; D: spermidine; LAB (Lactic Acid Bacteria): Lactobacillus sakei No.2. Reaction of each 2 (sample : polyamine : DLA) in 37°C incubator, 1 hour, and electrophoresis (50V, 50 min).