Research Article

Investigating the Effect of Probiotics as Natural Preservatives on the Microbial and Physicochemical Properties of Yogurt-Marinated Chicken Fillets

Table 1

Average of chemical parameters of chicken fillet samples in different groups during storage period at 1 ± 4°C (n = 3).

ParameterGroupDays
0268

pHControl6.15 ± 0.04 aA6.86 ± 0.02 aB7.82 ± 0.01 aC7.92 ± 0.03 aD
RY6.15 ± 0.04 aA5.22 ± 0.00 bB4.86 ± 0.00 bC4.71 ± 0.00 bD
PY6.15 ± 0.04 aA5.09 ± 0.12 bB5.01 ± 0.01 cB4.74 ± 0.00 bC
Cooking loss (%)Control57 ± 0.03 aA60 ± 0.02 aA59 ± 0.04 aA61 ± 0.04 aA
RY57 ± 0.03 aA56 ± 0.00 abAB50 ± 0.02 b BC48 ± 0.02 bC
PY57 ± 0.03 aA54 ± 0.00 bA46 ± 0.00 bB44 ± 0.00 bB
EXW (%)Control28 ± 0.02 aA44 ± 0.01 aB37 ± 0.04 aAB34 ± 0.04 aA
RY28 ± 0.02 aA42 ± 0.01 aB61 ± 0.00 bC52 ± 0.00 aD
PY28 ± 0.02 aA38 ± 0.02 aAB47 ± 0.07 abBC53 ± 0.00 aC
TBARS (mg MDAeq/kg)Control0.22 ± 0.00 aA0.23 ± 0.00 aAB0.24 ± 0.00 aAB0.26 ± 0.02 aB
RY0.22 ± 0.00 aA0.23 ± 0.00 abA0.23 ± 0.00 abA0.2 ± 0.00 bB
PY0.22 ± 0.00 aA0.22 ± 0.00 abA0.2 ± 0.01bcAB0.18 ± 0.00 bB

1Significant difference () between data is expressed by different letters. Lowercase letters show significant difference between various treatments in a column, while uppercase letters indicate significant difference in a row among the same treatments during the storage period (nonmarinated samples (Control), regular-yogurt-marinated samples (RY), and probiotic-yogurt-marinated samples (PY)); mean values ± SD.