Table 2.
Physiochemical characteristics of SFY products during storage.
| Storage period (days) | |||||
|---|---|---|---|---|---|
| Treatments | Fresh | 7 | 14 | 21 | Means |
| pH value | |||||
| C | 4.58 ± 0.01 | 4.55 ± 0.03 | 4.49 ± 0.01 | 4.44 ± 0.03 | 4.52A |
| T1 | 4.55 ± 0.04 | 4.52 ± 0.04 | 4.44 ± 0.01 | 4.39 ± 0.03 | 4.48BC |
| T2 | 4.53 ± 0.03 | 4.50 ± 0.03 | 4.42 ± 0.04 | 4.37 ± 0.01 | 4.46C |
| T3 | 4.58 ± 0.01 | 4.56 ± 0.04 | 4.48 ± 0.01 | 4.43 ± 0.03 | 4.51A |
| T4 | 4.57 ± 0.04 | 4.54 ± 0.03 | 4.47 ± 0.03 | 4.42 ± 0.03 | 4.50AB |
| Means | 4.56a | 4.53b | 4.46c | 4.41d | LSD = 0.027 |
| Titratable acidity (%) | |||||
| C | 0.86 ± 0.01 | 0.89 ± 0.01 | 0.91 ± 0.03 | 0.96 ± 0.03 | 0.91B |
| T1 | 0.88 ± 0.01 | 0.93 ± 0.03 | 0.96 ± 0.04 | 1.01 ± 0.04 | 0.95A |
| T2 | 0.90 ± 0.01 | 0.95 ± 0.03 | 0.97 ± 0.04 | 1.03 ± 0.04 | 0.96A |
| T3 | 0.86 ± 0.04 | 0.89 ± 0.01 | 0.92 ± 0.01 | 0.98 ± 0.03 | 0.91B |
| T4 | 0.86 ± 0.01 | 0.89 ± 0.01 | 0.92 ± 0.01 | 0.98 ± 0.03 | 0.91B |
| Means | 0.87c | 0.91b | 0.94b | 0.99a | LSD = 0.026 |
| Water holding capacity (%) | |||||
| C | 66.49 ± 0.38 | 64.80 ± 0.14 | 55.80 ± 0.14 | 47.20 ± 0.28 | 58.57B |
| T1 | 62.54 ± 0.42 | 58.74 ± 0.32 | 46.45 ± 0.21 | 41.74 ± 0.14 | 52.37C |
| T2 | 60.76 ± 0.28 | 53.34 ± 0.20 | 47.66 ± 0.28 | 42.34 ± 0.20 | 51.03D |
| T3 | 69.67 ± 0.42 | 66.22 ± 0.28 | 56.89 ± 0.28 | 47.34 ± 0.28 | 60.03A |
| T4 | 69.90 ± 0.35 | 66.92 ± 0.17 | 56.62 ± 0.17 | 46.92 ± 0.28 | 60.09A |
| Means | 56.87a | 62.00b | 52.68c | 45.11d | LSD = 0.258 |
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 raw or column are significantly different at p ≤ 0.05 level. BSA-NPs, Bovine Serum Albumin nanoparticles; FA, Folic Acid.