Table 2. Quality characteristics of jerky with humectants

Parameters No. of studies SMD 95% CI p-value Heterogeneity Publication bias
Lower Upper Q p-value I2 (%) p-value (Begg’s test) Trim and fill
Moisture 29 1.28 0.359 2.195 <0.05 76.20 <0.05 61.9 0.11 -
Water activity 20 –0.26 –0.671 0.153 0.21 22.95 0.17 22.9 0.08 7
pH 22 0.12 –0.296 0.542 0.57 38.87 0.15 43.4 0.74 -
Protein 16 –1.61 –2.534 –0.676 <0.05 34.19 <0.05 56.1 0.31 -
Fat 13 –0.09 –0.652 0.454 0.72 21.45 <0.05 44.0 0.12 -
Ash 13 –1.59 –3.259 0.086 0.06 36.43 <0.05 67.1 <0.05 -
Shear force 17 –0.84 –1.316 –0.359 <0.05 15.35 0.49 0.00 <0.05 5
TPC 6 0.45 –0.971 1.864 0.53 12.42 <0.05 59.8 0.98 -
TBARS 9 0.30 –0.868 1.472 0.61 20.53 <0.05 61.0 0.60 -
Metmyoglobin 11 –0.96 –1.672 –0.249 <0.05 13.13 0.22 23.9 <0.05 4
CIE L* 16 0.20 –0.516 0.919 0.58 33.68 <0.05 55.5 0.19 -
CIE a* 16 0.49 –0.037 1.035 0.06 29.70 <0.05 50.0 0.82 -
CIE b* 16 1.67 0.172 3.179 <0.05 43.14 <0.05 65.2 <0.05 -
MFI 8 3.22 –0.002 6.433 <0.05 23.31 <0.05 70.0 <0.05 -
Overall acceptance 25 1.73 0.714 2.744 <0.05 201.59 <0.05 88.1 <0.05 -
SMD, standardized mean difference; CI, confidence interval of SMD; Q, chi-squared statistic; I2, percentage of variation; TPC, total plate count; TBARS, thiobarbituric acid reactive substances; MFI, myofibrillar fragmentation index.