Table 2. The viable counts of L. bulgaricus and S. thermophilus during storage.

Storage time	Control	PPH1%	PPH5%	PPH10%
Viable counts of L. bulgaricus (1×108 CFU/mL)
1 d	5.1±0.5a	5.3±0.4a	6.9±0.5b	6.9±0.6b
14 d	3.8±0.4a	3.9±0.4a	5.1±0.3b	5.2±0.4b
Viable counts of S. thermophilus (1×108 CFU/mL)
1 d	5.6±0.4a	5.7±0.4a	7.1±0.5b	7.2±0.6b
14 d	4.0±0.4a	4.1±0.3a	5.0±0.3b	5.1±0.3b

Different lowercase letters in the same row indicates significant difference (p<0.05) between means; Control, fermented milk without proteolytic pork hydrolysate (PPH); PPH_1%, fermented milk containing 1% PPH; PPH_5%, fermented milk containing 5% PPH; PPH_10%, fermented milk containing 10% PPH.