Skip to main content

Table 1 Chemical composition of extruded full-fat flaxseed meals at different extrusion processing conditions

From: Impact of extrusion processing conditions on lipid peroxidation and storage stability of full-fat flaxseed meal

Extrusion conditions

Chemical composition

Cyanogenic compounds (mg/kg)

Tannin (mg/100 g)

Mucilage (g/100 g)

Oil yield (g/100 g)

Fatty acids

Oleic (% of TFA)

Linoleic (% of TFA)

α-Linolenic (% of TFA)

Barrel exit temperature (°C)

100

52.3 ± 0.4e

59.3 ± 0.6e

7.6 ± 0.2c

31.6 ± 0.1b

18.6 ± 0.1a

11.4 ± 0.2a

47.7 ± 0.4a

120

45.1 ± 0.5f

51.4 ± 0.6h

7.1 ± 0.2f

30.2 ± 0.2c

18.8 ± 0.2a

11.3 ± 0.1a

47.1 ± 0.5a

140

31.5 ± 0.6h

39.2 ± 0.5j

6.5 ± 0.2h

29.8 ± 0.2c

19.1 ± 0.1a

11.1 ± 0.2a

46.6 ± 0.6a

Screw speed (rpm)

50

70.5 ± 0.5a

74.8 ± 0.4a

7.3 ± 0.3e

31.3 ± 0.2b

19.0 ± 0.2a

11.4 ± 0.2a

49.0 ± 0.6a

100

52.9 ± 0.4e

53.1 ± 0.6g

7.5 ± 0.3c

29.0 ± 0.1d

18.7 ± 0.2 a

11.5 ± 0.2a

48.3 ± 0.5a

150

61.8 ± 0.5c

64.9 ± 0.7c

7.9 ± 0.2a

31.5 ± 0.1b

18.4 ± 0.1a

11.7 ± 0.1a

49.1 ± 0.5a

Feed rate (kg/h)

30

59.0 ± 0.5d

61.9 ± 0.7d

7.4 ± 0.1d

31.4 ± 0.2b

18.9 ± 0.1a

11.4 ± 0.2a

49.5 ± 0.6a

60

46.3 ± 0.6f

57.1 ± 0.4f

6.9 ± 0.3g

31.3 ± 0.2b

18.7 ± 0.2a

11.5 ± 0.3a

48.4 ± 0.5a

90

66.7 ± 0.3b

72.7 ± 0.8b

7.7 ± 0.2b

29.9 ± 0.1c

18.6 ± 0.2a

11.6 ± 0.2a

49.2 ± 0.6a

Feed moisture (%)

10

26.4 ± 0.3i

35.9 ± 0.4k

7.0 ± 0.2g

31.3 ± 0.2b

18.7 ± 0.2a

11.4 ± 0.1a

48.0 ± 0.6a

20

43.7 ± 0.4g

45.9 ± 0.5i

7.4 ± 0.1d

32.0 ± 0.1a

18.5 ± 0.1a

11.7 ± 0.1a

48.3 ± 0.5a

30

62.4 ± 0.5c

58.1 ± 0.6f

7.9 ± 0.2a

32.1 ± 0.1a

18.5 ± 0.1a

11.8 ± 0.2a

48.6 ± 0.5a

  1. Values represent the mean ± standard deviation; n = 3
  2. a–kMeans in a column with different superscripts were significantly different (p < 0.05)
  3. TFA = Total fatty acids
  4. The effect of single condition of extrusion was determined by setting the all other three conditions at mean values, respectively