Table 4.
Water activity and microbiological analysis of the probiotic powder product at RT for 60 days.
| Days | Water activity (aw) | Moisture content (%) | Probiotics (Log CFU/g) | Yeasts and molds (Log CFU/g) |
|---|---|---|---|---|
| 0 | 0.235 ± 0.00a | 2.75 ± 0.05a | 8.01 ± 0.09ab | ND |
| 15 | 0.253 ± 0.00b | 2.94 ± 0.03b | 7.96 ± 0.10cd | ND |
| 30 | 0.295 ± 0.00c | 3.13 ± 0.02c | 7.90 ± 0.18ef | ND |
| 45 | 0.323 ± 0.00d | 3.49 ± 0.06d | 7.33 ± 0.35ace | ND |
| 60 | 0.363 ± 0.00e | 3.80 ± 0.02e | 7.10 ± 0.17bdf | ND |
Values are mean ± SD; ND = not detected; a–f values are significant differences between storage at different times by one-way ANOVA and the multiple Bonferroni test (p < 0.05).