Table 3 Pasting, thermal properties and % crystallinity of rice and Horse chestnut resistant starches.

From: Resistant starch from five Himalayan rice cultivars and Horse chestnut: Extraction method optimization and characterization

Parameter

SK46

SK 338

CH 1007

CH 1039

SK 406

HCN

Pasting properties

Peak viscosity (cP)

847b ± 4.24

842.5b ± 9.19

1152.5e ± 3.53

1030c ± 11.31

1088d ± 16.97

539.5a ± 12.02

Trough viscosity (cP)

677.5c ± 10.60

636.5b ± 4.94

670c ± 19.79

736.5d ± 4.94

888.5e ± 10.60

180.5a ± 9.19

Breakdown viscosity (cP)

169.0a ± 14.84

206b ± 4.24

482.5e ± 7.07

293.5c ± 6.36

199.5b ± 12.13

359d ± 2.82

Final viscosity (cP)

1412c ± 11.31

1272.5b ± 10.26

2021e ± 16.26

1422.5c ± 9.19

1540d ± 9.89

239.5a ± 6.36

Setback viscosity (cP)

734.5d ± 21.92

636b ± 14.5

1351e ± 12.72

686c ± 14.14

651.5b ± 0.70

59.0a ± 18.38

Peak time (min)

7.0b ± 0.00

7.0b ± 0.00

7.0b ± 0.00

7.0b ± 0.00

7.0b ± 0.00

3.14a ± 0.01

Pasting temperature (°C)

94.95b ± 0.19

95.145d ± 0.07

95.00c ± 0.16

95.14d ± 0.07

94.95b ± 0.19

70.72a ± 0.03

Thermal properties

T0 (°C)

39.15a ± 2.97

38.75a ± 3.69

40.98b ± 3.42

46.87b ± 3.54

38.91a ± 4.023

40.89b ± 2.29

TP (°C)

74.21ab ± 1.78

73.87ab ± 1.78

73.46a ± 4.80

78.40ab ± 3.47

76.66b ± 3.18

75.23b ± 1.78

TC (°C)

107.87b ± 2.10

106.72b ± 5.86

116.12b ± 3.72

94.05a ± 2.60

110.00b ± 4.05

121.06b ± 2.60

TC-T0 (°C)

68.72bc ± 1.86

67.97bc ± 0.84

75.14bc ± 0.24

50.18b ± 19.55

72.94bc ± 4.41

80.17c ± 9.80

∆H gel (J/g)

131.45e ± 3.85

130.0e ± 4.22

146d ± 4.63

370.87a ± 5.48

186.04b ± 7.19

161.63c ± 9.21

% Crystallinity

17.72b ± 0.92

17.12b ± 1.00

17.38b ± 0.89

17.11b ± 0.97

16.75b ± 1.05

13.90a ± 1.05

  1. Values expressed are mean ± standard deviation.
  2. Means in the columns with different superscripts are significantly different at p ≤ 0.05.