Fig. 2

Regions of the 600 MHz 1D ¹H NMR spectrum of the pool sample mix of all fecal extracts used in this study. The regions on top are multiplied 16 times for better visualization. 60 fecal metabolites were identified with most of them annotated on the spectrum. Metabolites and their numbering as displayed in figure: 1: 2-methylbutyrate; 2: Valerate; 3: n-butyrate; 4:Leucine; 5:Isoleucine; 6: Valine; 7:Propionate; 8: Isobutyrate; 9: 3-methyl-2-oxoisovalerate; 10: 2-oxoisovalerate; 11: Ethanol; 12: 3-hydroxybutyrate; 13: Threonine; 14: Lactate; 15: 2-hydroxyisobutyrate; 16: 3-hydroxy-2-butanone; 17: Alanine; 18: Lysine; 19: Thymine; 20: Acetate; 21: 5-aminopentanoate; 22: Ornithine; 23: Proline; 24: Glutamate; 25: Methionine; 26: Glutamine; 27: Succinate; 28: 2-oxoglutarate; 29: 3-phenylpropionate; 30: Aspartate; 31: Methylamine; 32: Malate; 33: Trimethylamine; 34: Tyrosine; 35: Malonate; 36: Choline; 37: D-glucose; 38: Taurine; 39: Methanol; 40: Glycine; 41: D-xylose; 42: D-galactose; 43: Fructose; 44: Dihydroxyacetone; 45: Uracil; 46: Fumarate; 47: Urocanate; 48: Ethanolamine; 49: Xanthine; 50: Hypoxanthine; 51: Nicotinate; 52: 3-hydroxyphenylacetate; 53: Tryptophan; 54: Phenylalanine; 55: Orotate; 56; UDP-glucuronate; 57: Formate; 58: Benzoate; 59: 4-aminohippurate; 60: Homovanillate; 61: Putrescine; 62: Asparagine