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Table 1 Results from sensory and physicochemical analysis for cooked cured pork M. longissimus dorsi (n = 4) injected with different pH brines

From: A research note: effect of pH on meat iridescence in precooked cured pork

 

Treatment

Correlation coefficient r

4% lactic acid

1% lactic acid

Control

0.2 M NaOH

0.6 M NaOH

Intensity (–)

3.5 ± 2.0b

5.4 ± 1.4bcd

6.0 ± 1.2ad

7.3 ± 1.3ac

7.8 ± 0.7a

0.670*

Extent (–)

5.8 ± 2.1a

7.7 ± 1.1b

8.5 ± 0.9b

8.9 ± 0.3b

8.8 ± 0.4b

0.567*

pH raw (–)

5.40 ± 0.61a

5.36 ± 0.53a

5.39 ± 0.07a

5.44 ± 0.11a

5.43 ± 0.04a

0.115

pH cooked (–)

5.38 ± 0.03a

5.64 ± 0.04b

5.78 ± 0.06b

6.03 ± 0.09c

6.59 ± 0.22d

0.645*

Cooking loss (%)

32.5 ± 2.8c

24.6 ± 1.9a

19.9 ± 3.9a

10.5 ± 2.0b

6.7 ± 0.3b

− 0.728*

Water (%)

64.43 ± 2.54c

67.85 ± 1.03d

70.23 ± 1.07a

71.65 ± 0.93ab

72.65 ± 1.25b

0.601*

Protein (%)

30.15 ± 2.58b

25.87 ± 2.10c

23.39 ± 1.20 cd

21.71 ± 2.69d

22.81 ± 0.62d

− 0.647*

Ash (%)

2.20 ± 0.10c

2.79 ± 0.18a

2.85 ± 0.13ab

3.07 ± 0.18bd

3.27 ± 0.15d

0.750*

NaCl (%)

1.39 ± 0.14b

1.94 ± 0.22a

1.94 ± 0.14a

2.08 ± 0.18a

2.14 ± 0.17a

0.696*

  1. Pearson correlation coefficient r between intensity and extent with pH of cooked samples, respectively between iridescence score and physicochemical measurements. Data points within a row with different superscripts differ significantly (p < 0.05)
  2. *Significant correlation α = 0.01 (two-tailed)