Strain of Lactococcus lactis General quantity of cells inGoryaev (Thoma) chamber CFU/ml % viable cells in population General quantity of viable cells Optical density % viable cells, but not forming colonies
0 h 5 days 0 h 5 days 0 h 5 days 0 days 5 days
MSU type A 1± 0.11×108 1.8 ± 0.2×109 99.9 99.2 0.2 0.7 - 96.8
------------------- --------------------- ----------------- ------------------
1± 0.11×108 5.7 ± 0.6×107 9.9 ± 1.1×107 1.8 ± 0.2×109
MSU type B 9.0  ± 1×107 8.1 ± 0.9×107 99.9 99 0.1 0.1 - 97.7
-------------------- -------------------- ---------------- ----------------
9.0 ± 1×107 1.8 ± 0.2×106 9.9 ± 1×107 8.0 ± 0.9×107
729 type A 6.5 ± 0.7×107 2.4 ± 0.3×109 98 97.2 0.1 0.7 - 99.6
----------------------- -------------------- 0 ------------------
6.4 ± 0.7×107 8.7 ± 1×106 6.4 ± 0.7×107 2.3 ± 0.3×109
729 type B 1 ± 0.1×108 6.1 ± 0.7×107 98 100 0.1 0,1 - 98.9
---------------------- -------------------- ----------------- -----------------
9.8 ± 1.1×107 6.5 ± 0.7×105 9.7 ± 1.1×107 6.1 ± 0.7×107
F-116 type A 9.0  ± 1×107 1.4 ± 0.2×109 97.9 100 0.1 0.8 - 86.8
---------------------- -------------------- ---------------- ------------------
9.7 ± 1.1×107 1.9 ± 0.2×108 8.8 ± 1×107 1.5 ± 0.2×109
F-116 type B 7.3 ± 0.8×107 7.3 ± 0.8×107 98.5 100 0.1 0.1 - 82.1
--------------------- --------------------- ----------------- -----------------
7.2 ± 08×107 1.3 ± 0.2×107 7.0 ± 0.8×107 7.4 ± 0.8×107
Table 1: Characteristics of viability parameters of L. lactis populations on 0 and 5 days of incubation.