Table 1 Zinc tolerance of the LAB strains against different zinc concentrations
Strain code | Inhibition zone (mm) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Zn2+ concentration (mM) | ||||||||||
20 | 40 | 60 | 80 | 100 | 200 | 300 | 400 | 500 | 600 | |
TA4a | R(–) | R(–) | R(–) | R(–) | R(–) | R(–) | R(–) | R(0.5) | R(1) | S(1.2) |
TP2 | R(–) | R(–) | R(–) | R(–) | R(0.5) | S(2) | S(3) | S(4) | S(4.5) | S(6) |
TP6 | R(–) | R(–) | R(–) | R(–) | R(–) | S(2) | S(4) | S(4) | S(4) | S(5) |
SC2 | R(–) | R(–) | R(–) | R(1) | R(1) | S(1.5) | S(3) | S(4) | S(4.5) | S(6) |
SC4 | R(–) | R(0.5) | R(0.5) | R(1) | R(1) | S(2) | S(3) | S(4) | S(4.5) | S(5) |
SC7 | R(–) | R(–) | R(–) | R(–) | R(–) | R(1) | S(2) | S(2) | S(3) | S(4.5) |
SC8a | R(–) | R(–) | R(–) | R(–) | R(–) | R(0.5) | R(0.5) | R(1) | R(1) | S(1.5) |
MP3 | R(–) | R(–) | R(–) | R(0.5) | R(0.5) | S(2) | S(2) | S(2) | S(3) | S(4) |
MP6 | R(–) | R(–) | R(0.5) | R(1) | R(1) | S(2) | S(4) | S(4.5) | S(4.5) | S(5) |
FF2a | R(–) | R(–) | R(–) | R(–) | R(–) | R(–) | R(1) | R(1) | R(1) | S(2) |
FF4 | R(–) | R(–) | R(–) | R(–) | R(–) | S(2) | S(2.5) | S(3) | S(3) | S(4) |
MPJ1 | R(–) | R(–) | R(–) | R(–) | R(–) | S(2) | S(3) | S(3.5) | S(4) | S(6) |
MPJ2 | R(–) | R(–) | R(–) | R(–) | R(–) | S(1.5) | S(2) | S(3) | S(5) | S(5) |
MPJ4 | R(–) | R(–) | R(–) | R(–) | R(–) | S(2) | S(2) | S(3) | S(4) | S(5) |
MPJ5 | R(–) | R(–) | R(0.5) | R(0.5) | R(1) | S(2) | S(3) | S(5) | S(5) | S(5.5) |
MPJ7 | R(–) | R(–) | R(–) | R(–) | R(–) | S(2.5) | S(3) | S(4) | S(5) | S(5) |
MPJ9 | R(–) | R(–) | R(–) | R(–) | R(–) | S(2) | S(2.5) | S(2.5) | S(4) | S(5) |
MPJ10a | R(–) | R(–) | R(–) | R(–) | R(–) | R(0.5) | R(0.5) | R(1) | R(1) | S(2) |