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Table 1 Levels of antioxidant content and activities of tomato, tomato juice, tomato ketchup, and watermelon

From: Estimation of daily intake of lycopene, antioxidant contents and activities from tomatoes, watermelons, and their processed products in Korea

Product

Brands

Total flavonoids (mg RE/kg FW)

Total phenolics (mg GAE/kg FW)

Lycopene (mg/kg FW)

Antioxidant activities (mg VCE/kg FW)

DPPH

ABTS

Tomato

CT1

540.95 ± 4.10

775.04 ± 1.28

77.69 ± 4.57

495.31 ± 2.86

920.51 ± 13.78

CT2

351.90 ± 10.52

594.87 ± 6.54

108.06 ± 4.37

387.70 ± 5.71

718.13 ± 6.55

CT3

367.14 ± 3.09

617.78 ± 0.48

101.72 ± 1.18

398.38 ± 4.95

694.98 ± 8.15

CT4

556.19 ± 9.43

664.27 ± 1.28

59.10 ± 2.94

419.75 ± 8.83

824.61 ± 10.62

TM1

202.80 ± 2.94

281.71 ± 0.61

64.69 ± 2.81

159.35 ± 4.49

287.97 ± 3.27

TM2

172.86 ± 2.02

340.68 ± 1.47

68.84 ± 5.67

215.68 ± 1.94

355.76 ± 7.02

TM3

187.62 ± 2.43

299.49 ± 1.26

40.19 ± 1.58

180.88 ± 1.30

300.20 ± 8.57

TM4

220.95 ± 1.78

267.18 ± 0.73

48.41 ± 2.41

135.08 ± 1.30

278.04 ± 3.74

Average

325.00 ± 146.08c

480.13 ± 190.34b

71.09 ± 22.65b

299.02 ± 131.48a

547.52 ± 251.31a

Tomato juice

J1

956.67 ± 57.93

439.50 ± 6.96

48.33 ± 1.24

31.19 ± 2.04

233.39 ± 6.10

J2

776.67 ± 41.67

472.75 ± 9.21

45.99 ± 2.30

147.46 ± 2.32

313.62 ± 4.40

J3

446.67 ± 37.69

293.25 ± 1.84

9.90 ± 1.78

59.55 ± 2.32

159.03 ± 1.84

J4

781.90 ± 42.01

442.25 ± 6.83

54.21 ± 9.25

187.79 ± 4.46

352.44 ± 3.48

Average

740.48 ± 19.00b

411.94 ± 7.01b

40.49 ± 1.84c

106.50 ± 6.36c

264.62 ± 7.47b

Tomato ketchup

K1

2545.71 ± 188.41

1120.00 ± 28.94

206.14 ± 2.80

224.02 ± 18.57

633.06 ± 15.12

K2

2340.00 ± 123.02

1035.00 ± 31.82

204.11 ± 1.63

213.63 ± 5.83

579.24 ± 12.84

K3

2588.57 ± 60.71

1058.33 ± 17.83

199.29 ± 4.55

204.49 ± 4.46

560.76 ± 2.03

K4

2494.29 ± 61.31

1062.50 ± 26.06

205.83 ± 1.92

208.90 ± 2.67

605.88 ± 4.28

K5

1564.29 ± 51.55

801.67 ± 22.58

116.59 ± 0.58

126.35 ± 4.52

423.23 ± 6.83

K6

1570.00 ± 107.30

800.00 ± 5.40

116.98 ± 0.39

134.54 ± 7.81

418.88 ± 2.77

K7

2737.14 ± 99.98

1199.17 ± 24.61

254.98 ± 1.05

180.86 ± 2.48

592.83 ± 4.28

K8

2784.29 ± 100.59

1200.00 ± 19.69

246.14 ± 0.43

184.64 ± 8.95

602.61 ± 11.48

Average

2328.04 ± 47.02a

1034.58 ± 14.86a

193.76 ± 4.85a

184.68 ± 3.51b

552.06 ± 7.86a

Watermelon

W1

114.76 ± 2.69

140.08 ± 1.53

40.79 ± 2.50

49.96 ± 0.63

88.73 ± 0.72

W2

160.95 ± 3.37

133.75 ± 0.74

69.12 ± 3.86

38.46 ± 0.36

87.06 ± 0.98

W3

130.00 ± 2.33

164.83 ± 0.12

24.23 ± 2.18

45.54 ± 0.36

91.18 ± 0.42

W4

178.10 ± 1.35

155.57 ± 1.03

60.07 ± 0.73

48.19 ± 1.30

105.46 ± 0.27

W5

172.86 ± 1.17

146.08 ± 0.66

61.56 ± 1.46

38.02 ± 1.08

88.95 ± 0.69

W6

189.52 ± 8.75

150.50 ± 1.95

35.81 ± 1.36

44.76 ± 0.22

86.39 ± 1.19

W7

113.81 ± 4.10

136.00 ± 1.34

47.08 ± 0.35

41.62 ± 0.39

84.83 ± 0.16

W8

104.76 ± 4.42

141.58 ± 0.31

50.95 ± 0.91

30.14 ± 0.22

83.27 ± 0.32

W9

92.38 ± 1.78

143.08 ± 0.51

47.36 ± 1.91

38.47 ± 0.44

85.94 ± 0.79

W10

89.52 ± 2.43

139.17 ± 0.82

48.77 ± 1.55

32.18 ± 0.39

76.57 ± 0.16

W11

109.05 ± 4.86

135.75 ± 0.71

47.28 ± 2.31

16.93 ± 0.80

58.28 ± 0.27

W12

134.76 ± 1.78

158.17 ± 1.05

47.51 ± 0.29

49.64 ± 1.93

86.17 ± 0.63

W13

156.67 ± 3.75

153.75 ± 1.59

49.71 ± 1.07

37.06 ± 0.22

75.46 ± 0.16

W14

268.57 ± 2.02

169.08 ± 3.95

32.60 ± 0.93

36.86 ± 0.39

94.75 ± 0.47

W15

140.95 ± 0.67

176.83 ± 3.68

43.48 ± 3.55

61.28 ± 0.45

116.61 ± 1.03

Average

143.78 ± 45.22d

149.62 ± 12.84c

47.09 ± 11.14c

40.61 ± 9.96d

87.31 ± 12.63c

  1. Results are mean values ± standard deviation from three measurements (n = 3) of each sample; means in the same column with superscript with different letters (a, b, c, and d) are significantly different at p < 0.05. (RE rutin equivalent, GAE gallic acid equivalent, VCE vitamin C equivalent, FW fresh weight)