Pulsed Ligh inactivation of Listeria innocua on food packaging materials of different surface roughness and reflectivity

► Pulsed Light is effective fort inactivation of Listeria on packaging materials. ► High reflectivity of the surfaces interferes with inactivation. ► Rough surfaces can offer protective effects to contaminating microorganisms. ► Pulsed Light can be applied effectively through transparent polyethylene packaging.