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Table 1 Intrinsic properties of all analysed starch samples

From: Amylopectin structure and crystallinity explains variation in digestion kinetics of starches across botanic sources in an in vitro pig model

Origin

Sample

Amylose content, %

Granule diameter, μm

Crystal content, %

Percentage A-type crystals

Number of pores, 100 μm2

St.dev. number of pores, 100 μm2

Side-chain length (DP) amylopectin

Average, mol%

6–12, mol%

13–24, mol%

25–36, mol%

> 36, mol%

Short:Long

Potato

Regular

18

45.8

30.0

0.0

0.1

0.3

31

4.6

22.1

14.1

59.2

0.45

Potato

Sieved (< 20)

15

18.9

30.5

0.0

0.0

0.0

31

4.3

22.4

14.6

58.8

0.45

Potato

Sieved (21–32)

18

30.8

31.5

0.0

0.0

0.0

31

4.3

22.2

14.3

59.2

0.45

Potato

Sieved (33–52)

18

49.7

31.2

0.0

0.0

0.0

31

4.6

22.5

13.8

59.1

0.46

Potato

Sieved (53–71)

18

71.2

30.6

0.0

0.2

0.4

31

4.7

22.8

13.9

58.7

0.47

Potato

Sieved (72–109)

18

92.2

22.7

0.0

0.2

0.4

29

5.3

25.1

13.9

55.7

0.55

Potato

Waxy

0

45.4

33.0

20.2

0.0

0.0

30

5.2

22.7

14.8

57.3

0.49

Potato

HMT

11

46.7

23.4

42.4

0.0

0.0

31

4.7

22.3

15.0

58.1

0.46

Pea

Regular A

27

24.7

27.3

73.4

0.0

0.0

26

6.8

29.7

20.2

43.2

0.85

Pea

Regular B

27

25.0

25.2

68.4

0.0

0.0

26

6.4

30.9

18.9

43.8

0.85

Corn

Waxy

0

16.0

28.2

100.0

36.7

25.2

23

9.6

35.3

17.9

37.3

1.20

Corn

Regular A

19

15.0

21.5

100.0

28.6

24.9

23

9.8

35.4

17.1

37.6

1.20

Corn

Regular B

19

14.6

28.2

100.0

28.6

41.9

23

10.3

36.1

17.2

36.4

1.28

Corn

High amylose A

46

13.8

28.0

41.0

3.5

8.7

32

4.5

21.5

13.6

60.4

0.43

Corn

High amylose B

55

11.0

33.7

41.3

3.3

9.9

33

3.9

18.8

13.8

63.5

0.36

Barley

Regular

20

17.3

28.3

100.0

1.1

2.0

23

7.7

29.1

20.5

42.7

0.86

Wheat

Regular

23

20.6

25.5

100.0

0.0

0.0

23

9.9

31.2

18.8

40.2

1.02

Rice

Waxy

1

8.3

27.1

100.0

13.0

26.0

23

11.1

33.2

15.1

40.6

1.09

Rice

Regular A

16

6.6

24.2

100.0

21.7

72.7

24

9.3

35.1

14.2

41.4

1.07

Rice

Regular B

14

6.2

28.5

100.0

10.8

29.3

26

7.7

27.3

17.4

47.7

0.73