Effect of a combined treatment using both direct and alternating electric currents on hide bacteria in hide-soak liquor

摘要

Inactivation effect of an electric current treatment combining both 188μA/m~2 DC and 251μA/m~2 AC on Gram negative, Gram positive bacteria and their mixed culture, which were isolated from hides, was separately analyzed. This electric treatment, applied for 16min was found to be fairly effective inreducing the bacterial cell count (7.10-7.48 log_(10) colony forming units/mL) to a relatively low level (4.52-4.90 log_(10) colony forming units/mL). At this level bacterial damage to the hides is reduced in soak liquors. Cheap and efficient electric current may be applied to rapidly reduce the destructive bacterial populations in main hide-soak liquors.