Lactobacillus strain | Cell survival | EPS concentration (mg/mL) | Encapsulation in alginate | |||
---|---|---|---|---|---|---|
0 | 0.2 | 0.5 | 1.0 | |||
(a) | ||||||
D12 | Before freeze-drying (log CFU/g) | 9.77 ± 0.21az | 9.99 ± 0.29az | 9.79 ± 0.14az | 9.62 ± 0.01az | 10.13 ± 0.12az |
After freeze-drying (log CFU/g) | 8.19 ± 0.19bx | 8.79 ± 0.17by | 8.68 ± 0.09by | 8.69 ± 0.09by | 9.98 ± 0.04az | |
Cell mortality after freeze-drying (Δlog CFU/g) | 1.57 ± 0.19cx | 1.20 ± 0.17cxy | 1.11 ± 0.09cy | 0.92 ± 0.09cy | 0.15 ± 0.04bz | |
D13* | Before freeze-drying (log CFU/g) | 9.91 ± 0.01az | 9.99 ± 0.04az | 9.83 ± 0.06az | 9.91 ± 0.07dz | 10.05 ± 0.23az |
After freeze-drying (log CFU/g) | 9.33 ± 0.05dy | 9.16 ± 0.15by | 8.99 ± 0.03dy | 9.12 ± 0.19by | 8.39 ± 0.35cz | |
Cell mortality after freeze-drying (Δlog CFU/g) | 0.58 ± 0.05ex | 0.83 ± 0.15cy | 0.84 ± 0.03ey | 0.79 ± 0.19cxy | 1.65 ± 0.35dz |
Strain | Cell survival | Lyoprotectants (10% (w/v)) | |||
---|---|---|---|---|---|
Lactose | Inulin | Sorbitol | Sucrose | ||
(b) | |||||
D12 | Before freeze-drying (log CFU/g) | 10.21 ± 0.20az | 10.21 ± 0.20az | 10.21 ± 0.20az | 10.21 ± 0.20az |
After freeze-drying (log CFU/g) | 10.09 ± 0.13az | 9.90 ± 0.24az | 10.08 ± 0.18az | 9.85 ± 0.11az | |
Cell mortality after freeze-drying (Δlog CFU/g) | 0.23 ± 0.15bz | 0.30 ± 0.15bz | 0.12 ± 0.15bz | 0.35 ± 0.11bz | |
D13* | Before freeze-drying (log CFU/g) | 10.18 ± 0.15az | 10.18 ± 0.15az | 10.18 ± 0.15az | 10.18 ± 0.15az |
After freeze-drying (log CFU/g) | 10.08 ± 0.13ay | 10.02 ± 0.18ay | 9.64 ± 0.04cz | 9.81 ± 0.49ay | |
Cell mortality after freeze-drying (Δlog CFU/g) | 0.09 ± 0.11by | 0.16 ± 0.17by | 0.54 ± 0.04dz | 0.37 ± 0.49yz |