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Table 4 Effect of UHT Treatment and Storage on Organic Acids in Milk

From: Lipid compositional changes and oxidation status of ultra-high temperature treated Milk

Organic Acids

mg/100 g

Raw Milk

Immediately After UHT Treatment

30-Days

60-Days

90-Days

Lactic Acid

60.43 ± 0.57c

63.88 ± 0.09b

64.17 ± 0.04b

64.22 ± 0.41b

67.73 ± 0.82a

Acetic Acid

2.96 ± 0.04c

3.62 ± 0.13b

3.66 ± 0.06b

3.71 ± 0.50b

5.14 ± 0.32a

Citric Acid

88.57 ± 0.74c

92.34 ± 0.69b

93.11 ± 0.43b

93.44 ± 0.98b

98.53 ± 0.26a

Pyruvic Acid

3.61 ± 0.08c

4.29 ± 0.10b

4.32 ± 0.24b

4.39 ± 0.06b

7.19 ± 0.18a

Formic Acid

84.27 ± 0.43c

86.51 ± 0.16b

86.97 ± 0.33b

87.10 ± 0.51b

95.64 ± 0.13a

Succinic Acid

20.16 ± 0.15c

22.67 ± 0.35b

23.14 ± 0.28b

23.19 ± 0.40b

25.38 ± 0.61a

Oxalic Acid

4.31 ± 0.02c

5.94 ± 0.12b

6.19 ± 0.21b

6.24 ± 0.31b

10.27 ± 0.23a

  1. In a row, if means are expressed by a different letter, that are statistically significant (p < 0.05)