Table 4. Changes in lactic acid bacteria counts of concentrated fermented milk (FM-C) throughout the shelf life
(unit: CFU/mL)

Sample Medium Day 0 Day 10 Day 20 Evaluation
FM-C BCP agar (1.10 ± 0.11) × 109a (7.30 ± 0.07) × 108b (6.00 ± 0.10) × 108b Met internal quality criterion (≥ 1.0 × 108 CFU/mL)
TOS-MUP agar (6.00 ± 0.09) × 106a (3.20 ± 0.12) × 106b (1.20 ± 0.03) × 106c Met internal quality criterion (≥ 1.0 × 106 CFU/mL)
Values are presented as mean ± SD (n = 3).
Differences among sampling points were analysed by one-way ANOVA followed by Tukey’s test (p < 0.05).
Values with different superscript letters within the same row indicate significant differences (p < 0.05).
CFU/mL, colony-forming units per millilitre; BCP, bromocresol purple; TOS-MUP, tryptose–sulfite–cycloserine agar supplemented with 4-methylumbelliferyl phosphate; one-way ANOVA, one-way analysis of variance.