Table 4.
Microbiological analysis (Log10 CFUg−1) of SFY during storage.
| Storage period (days) | |||||
|---|---|---|---|---|---|
| Treatment | Fresh | 7 | 14 | 21 | Means |
| S. thermophilus | |||||
| C | 7.42 ± 0. 10 | 7.39 ± 0.08 | 7.25 ± 0.07 | 7.05 ± 0.06 | 7.28A |
| T1 | 7.44 ± 0.11 | 7.41 ± 0.08 | 7.30 ± 0.06 | 7.10 ± 0.03 | 7.31A |
| T2 | 7.45 ± 0.08 | 7.42 ± 0.10 | 7.33 ± 0.07 | 7.12 ± 0.03 | 7.33A |
| T3 | 7.42 ± 0.11 | 7.39 ± 0.10 | 7.24 ± 0.06 | 7.07 ± 0.01 | 7.28A |
| T4 | 7.43 ± 0.11 | 7.40 ± 0.10 | 7.27 ± 0.06 | 7.09 ± 0.01 | 7.30A |
| Means | 7.43a | 7.40a | 7.28b | 7.09c | LSD = 0. 082 |
| L. bulgaricus | |||||
| C | 7.18 ± 0.10 | 7.16 ± 0.10 | 7.12 ± 0.07 | 6.88 ± 0.01 | 7.08A |
| T1 | 7.19 ± 0.10 | 7.18 ± 0.08 | 7.15 ± 0.07 | 6.93 ± 0.03 | 7.11A |
| T2 | 7.20 ± 0.11 | 7.18 ± 0.10 | 7.15 ± 0.08 | 6.95 ± 0.04 | 7.12A |
| T3 | 7.23 ± 0.13 | 7.20 ± 0.10 | 7.12 ± 0.07 | 6.83 ± 0.03 | 7.09A |
| T4 | 7.24 ± 013 | 7.22 ± 0.10 | 7.13 ± 0.07 | 6.82 ± 0.03 | 7.10A |
| Means | 7.21a | 7.19a | 7.13a | 6.88b | LSD = 0.088 |
| L. acidophilus | |||||
| C | 7.15 ± 0.10 | 7.13 ± 0.08 | 7.06 ± 0.06 | 6.86 ± 0.01 | 7.05B |
| T1 | 7.39 ± 0.13 | 7.38 ± 0.11 | 7.30 ± 0.08 | 7.11 ± 0.06 | 7.30A |
| T2 | 7.40 ± 0.13 | 7.39 ± 0.11 | 7.33 ± 0.07 | 7.15 ± 0.03 | 7.31A |
| T3 | 7.14 ± 0.08 | 7.11 ± 0.07 | 7.02 ± 0.04 | 6.88 ± 0.03 | 7.04B |
| T4 | 7.16 ± 0.08 | 7.13 ± 0.07 | 7.06 ± 0.06 | 6.92 ± 0.03 | 7.06B |
| Means | 7.25a | 7.23a | 7.15b | 6.98c | LSD = 0.083 |
| B. bifidum | |||||
| C | 7.15 ± 0.10 | 7.12 ± 0.08 | 6.94 ± 0.04 | 6.71 ± 0.01 | 6.98A |
| T1 | 7.14 ± 0.10 | 7.12 ± 0.08 | 6.92 ± 0.04 | 6.75 ± 0.01 | 6.98A |
| T2 | 7.16 ± 0.10 | 7.15 ± 0.10 | 6.96 ± 0.04 | 6.73 ± 0.02 | 7.00A |
| T3 | 7.15 ± 0.09 | 7.13 ± 0.08 | 6.96 ± 0.07 | 6.74 ± 0.07 | 6.99A |
| T4 | 7.17 ± 0.07 | 7.15 ± 0.07 | 6.98 ± 0.04 | 6.75 ± 0.02 | 7.01 A |
| Means | 7.15a | 7.13a | 6.95b | 6.74c | LSD = 0.073 |
Data represented as means of duplicates ±SD. C, Control plain SFY; T1, SFY fortified with free Fe + ascorbic acid; T2, SFY fortified with free Fe + FA + ascorbic acid; T3, SFY fortified with Fe@ BSA-NPs + ascorbic acid; T4, SFY fortified with Fe +FA @ BSA-NPs + ascorbic acid. LSD, Least significant differences at 0.05 % level. Means with different superscripts in a row or column are significantly different at p ≤ 0.05 level. BSA-NPs, Bovine Serum Albumin nanoparticles; FA, Folic Acid.