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Table 3 Assignment table of the identified metabolites present in the 1H–NMR spectra of colostrum

From: Metabolomics characterization of colostrum in three sow breeds and its influences on piglets’ survival and litter growth rates

Assigned number

1H chemical shift, ppma

Compound

1

1.332 (d)

Lactate

2

1.486 (d)

Alanine

3

1.923 (s)

Acetate

4

2.028 (s)

N-Acetylglutamate

5

2.063 (s)

N-Acetylglucosamine

6

2.089 (s) - 5.552(dd) - 5.967 (d) - 7.944 (d) - 8.287 (d)

UDP-N-Acetylglucosamine

7

2.147 (s) -3.222 (s)

O-Acetylcholine

8

2.408 (s)

Succinate

9

2.539 (d) - 2.667 (d)

Citrate

10

2.720 (s)

Dimethylamine

11

3.039 (s)

Creatine

12

3.046 (s)

Creatine phosphate

13

3.050 (s)

Creatinine

14

3.119 (d) - 5.712 (m)

cis-Aconitate

15

3.204 (s)

Choline

16

3.231(s) - 4.330 (m)

sn-Glycerophosphocholine

17

3.272(t) - 3.532 (dd) - 4.073 (t)

Myo-Inositol

18

3.259 (t) - 3.428 (t)

Taurine

19

3.302 (t) -3.684:3.906 (m), 3.980 (d) 4.461 (d) - 4.679 (d) - 5.243 (d)

Lactose

20

3.480 (s) - 4.142:4.278 (m) -5.607 (dd) -5.967 (m) -7.940 (d)

UDP-glucose

21

3.935 (s)

Glycolate

22

4.142:4.278 (m) - 4.379 (m) - 5.664 (dd)- 5.990 (m) - 7.942 - 7.995(d)

UDP-galactose

23

5.917 (d) - 7.879 (d)

Uridine

24

8.406 (s)

Formate

25

4.423 (t) - 5.990 (m) - 8.102 (d)

UMP

  1. The assignments were obtained at pH 7.420. Chemical shift values are referenced to TMSP proton signals at 0.00 ppm. Glycerol (3.568, 3.661 and 3.793 ppm has not been listed as it has not been included in the PCA)
  2. ad, doublet; dd, doublet of doublets; m, multiplet; s, singlet; t, triplet