Adaptive acid tolerance response of Listeria monocytogenes strains under planktonic and immobilized growth conditions

► Growth of Listeria monocytogenes on solid substrates enhances acid tolerance compared to growth in liquid substrates. ► Cooked meat product slices enhance resistance to acid compared to slurries and exudates. ► Glucose assimilation in a colony may increase acid sensitivity of L. monocytogenes.