Table 3 Response Surface Methodology (RSM) for drying time, SEC, ΔE, TPC, TFC, AA, and EO of thyme under different drying conditions

From: Effects of infrared assisted refractance window drying on physicochemical and quality attributes and thermodynamic analysis of thyme (Thymus vulgaris L.)

Run

Independent variables

Response

Weight (g)

Water temperature (°C)

Time (min)

SEC (kWh/kg)

ΔE

AA (%)

TPC (mg GAE/ 100 g d.m)

TFC (mg QE/100 g d.m)

EO (%)

1

60

70

150

9.58

6.52

45.48

24.15

21.15

1.78

2

120

70

230

16.63

7.26

49.09

26.55

24.94

1.74

3

90

80

115

10.08

2.13

67.39

38.46

35.47

2.2

4

60

80

85

7.55

4.82

57.83

31.55

30.08

2.01

5

120

90

115

10.43

2.59

70.68

30.21

28.18

1.49

6

90

80

120

9.38

2.5

64.62

36.36

37.07

2.02

7

90

80

112

10.77

1.4

70.19

40.56

33.87

2.35

8

90

80

117

10.32

2.03

68.76

39.24

34.83

2.14

9

120

80

140

13.01

5.4

63.43

34.55

33.12

1.82

10

90

70

185

13.43

4.98

54.13

28.55

28.17

1.95

11

60

90

60

5.25

3.79

65.88

28.46

27.7

1.61

12

90

80

113

9.78

2.4

66.13

37.23

36.45

2.09

13

90

90

85

7.18

0.86

75.73

34.02

31.91

1.81

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