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Table 1 Metabolites identified in tomatoes and their changes after fermentation

From: A GC–MS based metabolic profiling of fermented tomato by lactic acid bacteria

Group

RT (min)a

Metabolite

Formula

Tb

Qc

RId

IDe

Similarity (%)

Fold changes after fermentationh

C vs LP

C vs LM

C vs LF

C vs BL

C vs PP

C vs LB

Organic acids

6.59

Lactic acid

C3H6O3

73

73,117,147

1066

RI,MSf,Rg

94

5.30***

6.31***

4.77***

5.34***

5.40***

4.83***

10.24

Succinic acid

C4H6O4

147

147,73,247

1316

RI,MS,R

96

29.22***

33.06***

10.96***

11.90***

11.72***

2.73***

10.54

Glyceric acid

C3H6O4

189

73,147,189

1339

RI,MS,R

95

0.63**

0.18***

3.40*

3.48*

3.97*

0.16***

12.60

Malic acid

C4H6O5

147

173,147,233

1497

RI,MS,R

84

0.04***

0.04***

0.20***

0.23***

0.24***

0.04***

16.46

Citric acid

C6H8O7

273

273,73,147

1839

RI,MS,R

92

0.03***

0.04***

0.77**

0.93

0.92

0.02***

Amino acids

6.95

Valine

C5H11NO2

72

72,103,146

1106

RI,MS,R

96

1.08

0.90

0.54*

0.84

0.91

2.71***

7.20

Alanine

C3H7NO2

116

116,73,147

1106

RI,MS,R

96

8.33***

10.04***

25.20***

34.90***

34.23***

14.09*

7.97

Leucine

C3H13NO2

86

86,75,146

1158

RI,MS,R

93

1.16

1.37

0.23*

0.33

0.33

1.90***

9.48

Serine

C3H7NO3

116

116,132,73

1262

RI,MS,R

97

0.03***

0.01***

0.65***

0.74**

0.76**

0.14***

10.02

Threonine

C4H9NO3

117

73,117,147

1300

RI,MS,R

96

0.69**

0.72***

0.66***

0.74***

0.74**

0.95

11.58

Methionine

C5H11NO2S

56

56,104,131

1414

RI,MS,R

91

2.63***

2.49***

2.22***

2.46***

2.49***

3.34***

11.74

Aspartic acid

C4H7NO4

73

73,160,130

1429

RI,MS,R

96

1.19

1.27**

1.14*

1.28**

1.27**

1.20*

13.33

Phenylalanine

C9H11NO2

120

120,146,73

1558

RI,MS,R

92

1.24*

1.21**

0.19***

0.33***

0.35***

1.80***

14.15

Glutamic acid

C5H9NO4

246

246,73,128

1628

RI,MS,R

94

178.00***

173.93***

137.34***

142.59***

136.86***

9.67***

Polyol

12.89

Erythritol

C4H10O4

73

73,177,217

1521

RI,MS

94

5.92***

7.83***

2.40***

2.79***

2.74***

34.69***

19.21

Myo-inositol

C6H12O6

73

73,217,305

2121

RI,MS,R

92

0.89

0.93

0.66***

0.77**

0.74**

0.92

Sugar

17.17

Fructose

C6H12O6

217

217,103,73

1910

RI,MS,R

90

0.13***

0.34***

0.03***

0.05***

0.01***

0.05***

Fatty acid

18.49

Palmitic acid

C6H32O2

73

73,117,313

2121

RI,MS,R

93

0.79

0.85

0.95

1.49

1.09

0.75***

  1. aRT Retention time
  2. bT quantifier ion
  3. cQ qualifier ions
  4. dRI retention index
  5. eID identification
  6. fMS mass spectrum of NIST library
  7. gR agreement retention time and mass pattern of reference paper
  8. h*p-value < 0.05, **p-value < 0.01, ***p-value < 0.001