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Table 1 Effect of interesterification process on triacylglycerol classes of canola oil and fully hydrogenated cottonseed oil blends

From: Triacylglycerol composition, physico-chemical characteristics and oxidative stability of interesterified canola oil and fully hydrogenated cottonseed oil blends

Triacylglycerol (TAG, %)

Experimental treatment

Processing and storage time

Before IE

After IE

0 day

30 days

60 days

Trisaturated (S3)

T1

18.6 ± 0.2a

3.3 ± 0.1b

4.3 ± 0.1b

5.1 ± 0.2b

T2

42.4 ± 0.4a

23.7 ± 0.3b

24.3 ± 0.3b

25.1 ± 0.4b

T3

63.9 ± 0.5a

39.6 ± 0.4b

40.4 ± 0.4b

41 ± 0.3b

Monounsaturated (S2U)

T1

1.1 ± 0.1b

10.2 ± 0.2a

11.4 ± 0.2a

12.5 ± 0.2a

T2

0.7 ± 0.1b

17.8 ± 0.2a

18.3 ± 0.3a

19 ± 0.3a

T3

0.5 ± 0.1b

21.4 ± 0.3a

21.8 ± 0.2a

22.2 ± 0.3a

Diunsaturated (U2S)

T1

16.8 ± 0.2b

50.4 ± 0.5a

49.2 ± 0.4a

48.3 ± 0.4a

T2

9.4 ± 0.2b

29.5 ± 0.3a

29.1 ± 0.3a

28 ± 0.4a

T3

5.5 ± 0.1b

19.6 ± 0.2a

19 ± 0.2a

18.3 ± 0.3a

Triunsaturated (U3)

T1

63.1 ± 0.6a

32.9 ± 0.3b

30.4 ± 0.4c

28.6 ± 0.3d

T2

46.7 ± 0.4a

25.4 ± 0.3b

24.2 ± 0.4c

23.5 ± 0.3d

T3

29.5 ± 0.3a

15.9 ± 0.2b

15.5 ± 0.2c

15 ± 0.2d

Total Saturated (S)

T1

18.6 ± 0.2a

3.3 ± 0.1b

4.3 ± 0.1b

5.1 ± 0.2b

T2

42.4 ± 0.4a

23.7 ± 0.3b

24.3 ± 0.3b

25.1 ± 0.4b

T3

63.9 ± 0.5a

39.6 ± 0.4b

40.4 ± 0.4b

41 ± 0.3b

Total Unsaturated (U)

T1

81 ± 0.6d

93.5 ± 0.7a

91 ± 0.8b

89.4 ± 0.7c

T2

56.8 ± 0.6d

72.7 ± 0.6a

71.6 ± 0.8b

70.5 ± 0.7c

T3

35.5 ± 0.4d

56.9 ± 0.5a

56.2 ± 0.5b

55 ± 0.6c

U/S ratio

T1

4.35 ± 0.2d

28.3 ± 0.3a

21.1 ± 0.3b

17.5 ± 0.2c

T2

1.33 ± 0.2d

3.06 ± 0.2a

2.94 ± 0.3b

2.80 ± 0.3c

T3

0.55 ± 0.1d

1.43 ± 0.1a

1.36 ± 0.2b

1.29 ± 0.2c

Total TAGe

T1

99.6 ± 0.3a

96.8 ± 0.6b

95.3 ± 0.8b

94.5 ± 0.8c

T2

99.2 ± 0.4a

96.4 ± 0.5b

95.9 ± 0.6b

95.6 ± 0.7b

T3

99.4 ± 0.4a

96.5 ± 0.7b

95.7 ± 0.8b

95.3 ± 0.9b

  1. IE: Interesterification; T1 (75 % CaO:25 % FHCSO); T2 (50 % CaO:50 % FHCSO); T3 (25 % CaO:75 % FHCSO); Total saturated (S) calculated by Saturated (S3); Total Unsaturated (U) calculated by Monounsaturated (S2U) + Diunsaturated (U2S) + Triunsaturated (U3); Values represent the mean ± standard deviation; n = 3
  2. a, b, c, dMeans in a row with different superscripts were significantly different (p < 0.05)
  3. eTotal TAG calculated by Saturated (S3) + Monounsaturated (S2U) + Diunsaturated (U2S) + Triunsaturated (U3)