Table 2 Characterization of the espresso coffees from capsules for volume, main alkaloids, niacin and chlorogenic acid contents.

From: Niacin, alkaloids and (poly)phenolic compounds in the most widespread Italian capsule-brewed coffees

ID Capsule

Volume (mL)

Caffeine (mg/serving)

Trigonelline (mg/serving)

NMP (mg/serving)

Niacin (mg/serving)

Total CQAs (mg/serving)

Other phenolic acids (mg/serving)

Ratio caffeine/total CQAs

A-1

28.0 ± 1.4

72.42 ± 14.55

8.43 ± 0.63

1.44 ± 0.26

0.77 ± 0.10

23.68 ± 0.27

55.47 ± 0.14

2.99 ± 0.07

A-2

29.5 ± 0.7

1.82 ± 0.20

8.38 ± 1.60

1.19 ± 0.05

0.43 ± 0.07

25.99 ± 1.30

44.77 ± 2.24

0.07 ± 0.00

A-3

82.7 ± 5.9

75.09 ± 11.70

29.38 ± 4.72

1.61 ± 0.12

0.55 ± 0.05

63.11 ± 8.81

114.49 ± 0.12

1.20 ± 0.17

A-4

31.5 ± 4.9

63.55 ± 3.94

16.68 ± 2.64

1.18 ± 0.03

0.39 ± 0.01

39.68 ± 1.98

69.27 ± 3.46

1.60 ± 0.08

A-5

30.5 ± 0.7

60.41 ± 0.59

13.17 ± 0.48

1.54 ± 0.25

0.47 ± 0.02

36.26 ± 1.81

58.20 ± 2.91

1.67 ± 0.08

A-6

31.2 ± 2.5

73.92 ± 5.69

10.70 ± 1.27

1.91 ± 0.34

0.51 ± 0.03

29.62 ± 2.44

59.97 ± 0.02

2.50 ± 0.21

A-7

34.0 ± 2.4

58.35 ± 5.95

12.80 ± 1.84

1.03 ± 0.22

0.34 ± 0.01

32.72 ± 2.89

63.59 ± 0.13

1.79 ± 0.16

A-8

31.5 ± 0.7

2.39 ± 0.05

10.18 ± 1.85

1.41 ± 0.09

0.58 ± 0.07

24.05 ± 1.20

50.14 ± 2.51

0.10 ± 0.00

A-9

27.7 ± 0.9

87.24 ± 20.90

7.30 ± 1.35

1.71 ± 0.29

1.01 ± 0.09

19.97 ± 1.40

50.25 ± 0.11

4.38 ± 0.31

A-10

30.2 ± 1.2

59.77 ± 4.81

10.37 ± 0.36

1.79 ± 0.06

0.53 ± 0.03

26.08 ± 4.78

51.35 ± 0.67

2.33 ± 0.43

A-11

92.5 ± 5.2

92.52 ± 2.04

15.32 ± 4.48

2.51 ± 0.13

0.47 ± 0.03

36.40 ± 0.85

103.32 ± 0.20

2.54 ± 0.06

A-12

30.0 ± 1.4

91.74 ± 5.35

13.78 ± 2.32

1.45 ± 0.05

0.57 ± 0.01

40.01 ± 2.00

77.71 ± 3.89

2.29 ± 0.11

A-13

29.0 ± 2.4

135.63 ± 17.08

6.78 ± 1.25

2.08 ± 0.15

1.01 ± 0.11

22.39 ± 3.36

66.09 ± 0.11

6.13 ± 0.92

A-14

94.5 ± 4.2

83.43 ± 0.49

15.71 ± 3.82

2.41 ± 0.01

0.42 ± 0.04

39.34 ± 4.53

97.84 ± 1.22

2.13 ± 0.25

A-15

34.7 ± 0.5

54.91 ± 12.57

12.69 ± 1.74

1.57 ± 0.16

0.56 ± 0.11

33.58 ± 0.79

75.40 ± 0.76

1.68 ± 0.02

A-16

28.0 ± 0.8

96.43 ± 11.64

12.12 ± 0.33

2.16 ± 0.22

0.91 ± 0.01

37.67 ± 1.78

67.12 ± 0.02

2.56 ± 0.12

A-17

28.0 ± 1.4

63.13 ± 8.36

12.55 ± 0.42

1.53 ± 0.28

0.42 ± 0.01

38.78 ± 1.94

57.93 ± 2.90

1.63 ± 0.08

A-18

35.0 ± 2.1

66.05 ± 4.57

16.43 ± 2.24

1.21 ± 0.10

0.35 ± 0.01

46.90 ± 5.47

87.13 ± 0.18

1.42 ± 0.17

A-19

35.0 ± 2.8

63.20 ± 3.76

11.57 ± 0.74

1.58 ± 0.27

0.47 ± 0.08

31.29 ± 1.56

56.13 ± 2.81

2.02 ± 0.10

A-20

95.0 ± 3.2

89.51 ± 1.36

17.53 ± 2.00

2.92 ± 0.31

0.65 ± 0.13

44.45 ± 3.51

102.14 ± 0.57

2.02 ± 0.16

A-21

89.7 ± 0.5

3.63 ± 0.01

20.01 ± 4.84

1.62 ± 0.18

0.57 ± 0.05

54.28 ± 5.02

105.47 ± 0.15

0.07 ± 0.01

A-22

32.7 ± 1.2

58.02 ± 12.73

13.29 ± 1.24

1.47 ± 0.25

0.44 ± 0.01

32.87 ± 1.55

70.74 ± 0.03

1.77 ± 0.08

A-23

31.2 ± 0.9

1.86 ± 0.09

15.68 ± 0.74

0.98 ± 0.07

0.33 ± 0.07

33.74 ± 1.69

51.92 ± 0.42

0.06 ± 0.00

B-24

33.5 ± 1.7

125.35 ± 19.71

17.31 ± 2.94

1.96 ± 0.15

0.78 ± 0.01

51.89 ± 7.23

89.22 ± 0.11

2.49 ± 0.41

B-25

38.7 ± 2.5

142.10 ± 24.62

16.56 ± 3.24

1.24 ± 0.06

0.55 ± 0.08

57.00 ± 2.70

97.11 ± 0.08

2.50 ± 0.12

B-26

48.5 ± 3.8

89.47 ± 7.76

20.55 ± 1.57

1.52 ± 0.24

0.45 ± 0.09

55.34 ± 0.17

84.36 ± 0.05

1.62 ± 0.00

B-27

50.0 ± 3.7

74.81 ± 5.46

12.49 ± 1.94

2.00 ± 0.11

0.55 ± 0.10

30.87 ± 5.40

66.60 ± 0.02

2.46 ± 0.43

B-28

46.7 ± 4.1

2.16 ± 0.21

14.17 ± 3.08

1.77 ± 0.14

0.78 ± 0.09

35.91 ± 6.53

73.01 ± 3.65

0.06 ± 0.01

B-29

51.0 ± 3.5

130.87 ± 9.78

20.60 ± 3.42

2.17 ± 0.15

0.84 ± 0.14

52.94 ± 4.10

93.25 ± 0.16

2.48 ± 0.19

B-30

54.2 ± 7.1

2.92 ± 0.59

13.47 ± 1.70

2.24 ± 0.36

0.90 ± 0.15

36.56 ± 0.62

81.91 ± 0.42

0.08 ± 0.00

B-31

206.3 ± 13.7

130.77 ± 6.99

20.26 ± 1.71

5.88 ± 1.19

1.16 ± 0.17

46.98 ± 2.70

141.33 ± 1.58

2.79 ± 0.16

B-32

183.8 ± 7.5

178.29 ± 11.99

47.32 ± 7.95

2.97 ± 0.58

0.56 ± 0.08

116.68 ± 5.31

223.42 ± 1.89

1.53 ± 0.07

B-33

126.3 ± 13.2

116.07 ± 5.46

20.54 ± 2.12

3.29 ± 0.32

0.73 ± 0.13

47.34 ± 5.72

110.16 ± 1.20

2.47 ± 0.30

B-34

106.3 ± 7.5

185.92 ± 20.67

18.26 ± 2.25

2.92 ± 0.01

0.92 ± 0.05

58.78 ± 3.66

121.40 ± 0.10

3.17 ± 0.20

B-35

31.5 ± 1.2

99.33 ± 19.89

20.83 ± 3.46

1.41 ± 0.03

0.59 ± 0.05

54.66 ± 3.42

81.25 ± 0.03

1.78 ± 0.05

B-36

30.7 ± 2.2

114.63 ± 19.89

12.43 ± 2.96

2.04 ± 0.28

0.93 ± 0.08

33.88 ± 4.04

72.22 ± 0.04

3.41 ± 0.41

B-37

31.2 ± 3.8

107.66 ± 11.02

18.60 ± 2.73

1.46 ± 0.03

0.56 ± 0.07

52.83 ± 6.12

86.82 ± 0.32

2.05 ± 0.24

B-38

47.5 ± 2.3

87.13 ± 2.60

22.33 ± 3.95

1.95 ± 0.22

0.57 ± 0.14

62.88 ± 8.41

98.79 ± 0.03

1.40 ± 0.19

C-39

48.5 ± 0.7

123.17 ± 9.18

26.69 ± 2.54

2.17 ± 0.24

0.73 ± 0.12

86.61 ± 4.33

114.71 ± 5.74

1.42 ± 0.07

C-40

47.7 ± 4.9

1.88 ± 0.16

30.50 ± 0.19

2.06 ± 0.25

0.75 ± 0.16

73.71 ± 0.49

93.59 ± 0.14

0.03 ± 0.00

C-41

46.2 ± 2.6

134.77 ± 12.06

26.49 ± 1.72

2.26 ± 0.13

0.87 ± 0.09

74.26 ± 13.93

109.27 ± 0.14

1.85 ± 0.35

C-42

48.0 ± 2.5

152.59 ± 11.12

14.32 ± 0.36

2.48 ± 0.09

0.93 ± 0.13

50.41 ± 7.66

113.17 ± 0.03

3.06 ± 0.47

C-43

47.5 ± 2.3

200.05 ± 9.64

19.55 ± 3.80

3.02 ± 0.29

0.97 ± 0.06

65.60 ± 1.43

122.89 ± 0.75

3.05 ± 0.07

C-44

100.0 ± 7.1

190.32 ± 5.40

33.47 ± 1.03

3.36 ± 0.20

1.05 ± 0.09

98.97 ± 4.95

156.46 ± 7.82

1.92 ± 0.10

C-45

51.0 ± 1.4

150.20 ± 3.24

23.10 ± 4.04

2.32 ± 0.00

0.62 ± 0.09

68.19 ± 3.41

114.40 ± 5.72

2.20 ± 0.11

C-46

48.0 ± 4.5

157.31 ± 2.10

19.22 ± 1.05

3.04 ± 0.43

1.17 ± 0.15

51.94 ± 1.81

112.05 ± 0.16

3.03 ± 0.11

C-47

49.5 ± 2.6

122.10 ± 9.31

22.00 ± 0.82

2.00 ± 0.35

0.60 ± 0.05

57.63 ± 2.19

101.41 ± 0.02

2.12 ± 0.08

C-48

47.7 ± 3.5

207.99 ± 4.20

16.04 ± 2.90

1.73 ± 0.21

0.75 ± 0.01

69.42 ± 12.62

141.61 ± 0.02

3.05 ± 0.55

D-49

25.0 ± 6.3

117.11 ± 15.60

24.52 ± 1.44

0.81 ± 0.11

0.31 ± 0.03

67.85 ± 10.85

91.17 ± 0.19

1.75 ± 0.28

D-50

22.0 ± 3.4

105.87 ± 2.97

24.48 ± 3.19

1.16 ± 0.01

0.50 ± 0.07

58.02 ± 4.53

81.93 ± 0.03

1.83 ± 0.14

D-51

27.0 ± 2.8

53.87 ± 1.66

28.72 ± 1.11

1.43 ± 0.28

0.66 ± 0.05

53.19 ± 2.66

77.10 ± 3.85

1.01 ± 0.05

D-52

28.5 ± 0.7

4.02 ± 0.36

19.87 ± 0.71

1.65 ± 0.02

0.71 ± 0.00

41.03 ± 2.05

69.32 ± 3.47

0.10 ± 0.00

D-53

132.5 ± 3.5

121.86 ± 10.70

21.10 ± 0.37

3.15 ± 0.27

0.73 ± 0.10

54.88 ± 2.74

108.97 ± 5.45

2.22 ± 0.11

D-54

29.0 ± 0.0

108.95 ± 9.26

15.10 ± 0.10

1.98 ± 0.30

0.59 ± 0.06

50.70 ± 2.54

80.74 ± 4.04

2.15 ± 0.11

D-55

29.5 ± 0.7

134.10 ± 3.89

11.16 ± 0.26

3.43 ± 0.12

1.07 ± 0.01

31.35 ± 1.57

68.40 ± 3.42

4.28 ± 0.21

D-56

27.0 ± 2.8

125.67 ± 0.40

18.72 ± 1.11

1.68 ± 0.25

0.73 ± 0.04

46.41 ± 2.32

78.22 ± 3.91

2.71 ± 0.14

D-57

32.5 ± 2.1

108.73 ± 5.62

33.57 ± 2.25

1.63 ± 0.21

0.47 ± 0.03

75.67 ± 3.78

99.64 ± 4.98

1.44 ± 0.07

D-58

32.0 ± 1.4

103.28 ± 2.16

24.31 ± 1.42

1.19 ± 0.02

0.48 ± 0.02

59.89 ± 2.99

81.66 ± 4.08

1.72 ± 0.09

E-59

33.7 ± 3.9

148.57 ± 27.55

17.21 ± 3.94

1.78 ± 0.06

0.76 ± 0.04

56.40 ± 3.74

103.39 ± 0.07

2.59 ± 0.25

E-60

36.0 ± 3.3

4.57 ± 0.87

32.33 ± 5.99

1.45 ± 0.29

0.68 ± 0.03

62.98 ± 14.90

101.08 ± 0.61

0.07 ± 0.02

E-61

35.0 ± 0.8

107.52 ± 10.62

29.44 ± 7.35

2.19 ± 0.03

0.74 ± 0.05

63.25 ± 11.31

87.19 ± 0.02

1.73 ± 0.31

E-62

35.7 ± 4.0

172.28 ± 40.02

18.99 ± 0.52

2.00 ± 0.10

0.83 ± 0.00

58.00 ± 4.59

109.27 ± 0.05

2.98 ± 0.24

E-63

36.0 ± 5.3

141.98 ± 16.38

19.91 ± 3.96

1.94 ± 0.23

0.82 ± 0.06

61.60 ± 9.53

100.25 ± 0.07

2.33 ± 0.36

E-64

37.5 ± 2.0

127.10 ± 13.97

24.35 ± 4.13

1.89 ± 0.21

0.72 ± 0.01

67.94 ± 9.68

100.93 ± 0.57

1.89 ± 0.27

E-65

35.7 ± 1.2

123.99 ± 16.43

25.06 ± 4.53

1.82 ± 0.38

0.79 ± 0.02

68.50 ± 10.07

105.24 ± 0.75

1.83 ± 0.27

  1. Values are expressed as mean ± SD (n = 4). Legend: CQAs: caffeoylquinic acids; NMP: N-methylpyridinium.
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