Table 3

Median values and ranges of the concentration (ppm) of volatile organic compounds (VOC) of faecal and urine samples from treated celiac disease (T-CD) children and non-celiac children (HC) as determined by gas-chromatography mass spectrometry/solid-phase microextraction (GC-MS/SPME) analysis

Chemical class

Treated celiac disease (T-CD)children

Non-celiac children (HC)


Faeces

Urines

Faeces

Urines

Median

Range

Median

Range

Median

Range

Median

Range


Esters

20.31b

0 - 846.97

0.47c

0 - 40.00

47.73a

1.83 - 496.83

0.99c

0 - 8.05

Sulfur compounds

214.83b

0 - 890.86

1.46c

0 - 25.44

387.07a

0 - 499.88

3.49c

0 - 63.67

Ketones

90.88b

0 - 2402.50

54.01c

0 - 295.03

112.83a

0 - 416.20

64.49c

0 - 458.78

Hydrocarbons

16.69b

0 - 1327.15

4.25c

0 - 67.07

119.13a

0.22 - 635.25

3.14c

0.15 - 62.56

Aldehydes

17.59c

0 - 512.28

64.31a

0.34 - 166.31

37.46b

2.08 - 365.25

73.37a

0.50 - 199.56

Alcohols

230.14a

0 - 2311.29

2.25c

0 - 17.5

122.56b

0 - 934.22

2.14c

0 - 34.96

Alkane

6.73a

0 - 653.61

0.3b

0.05 - 1.57

9.37a

0 - 432.74

0.43b

0 - 1.47

Alkene

0a

0 - 32.51

0a

0

0a

0 - 31.99

0a

0

Aromatic organic compounds

178.24b

0 - 143.67

2.10c

0.04 - 28.16

480.20a

233.74 - 993.94

2.78c

0 - 16.30

Heptane

23.01a

0 - 837.50

0c

0 - 1.37

26.37a

0 - 65.75

0.34b

0 - 2.37

Short chain fatty acids (SCFA)

21.64a

0 - 1438.28

3b

0.08 - 31.14

27.85a

0 - 1037.50

3.82b

1.44 - 24.87


Data are the means of three independent experiments (n = 3) for each children.

a-cMeans within a row with different superscript letters are significantly different (P < 0.05).

Di Cagno et al. BMC Microbiology 2011 11:219   doi:10.1186/1471-2180-11-219

Open Data