Table 2 The effects of PDORs from different organisms by metal ions

Ca²⁺

Lactobacillus brevis, Lactobacillus buchneri

–

Veiga-da-Cunha and Foster [53]

Fe²⁺

Lactobacillus brevis, Lactobacillus buchneri, Citrobacter freundii

–

Veiga-da-Cunha and Foster MA [53], Daniel et al. [55]

K⁺

Lactobacillus reuteri

Highest levels of activity in the presence of 100 mM K⁺

Talarico et al. [133]

Li⁺

Clostridium butyricum

–

Malaoui and Marczak [131]

Mg²⁺

Lactobacillus brevis, Lactobacillus buchneri

–

Veiga-da-Cunha and Foster [53]

Mn²⁺

Clostridium butyricum, Lactobacillus brevis, Lactobacillus buchneri, Citrobacter freundii

–

Veiga-da-Cunha and Foster [53], Daniel et al. [55], Malaoui and Marczak [131]

Na⁺

Clostridium butyricum

–

Malaoui, Marczak [131]