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Table 2 Enterolignans and related conjugates identified by UPLC-QTOF-MS analysis in plasma and milk of sheep fed with flaxseed-enriched diets

From: Flaxseed-enriched diets change milk concentration of the antimicrobial danofloxacin in sheep

Compound Localization Retention time (min) m/z Molecular formula Error Score MS/MS fragments
Enterodiol Plasma, milk 13.614 301.1443 C18H22O4 0.89 99.51 271/253/241/146
Enterodiol- glucuronide Plasma 10.422 477.1761 C24H30O10 0.67 89.58 301/253/175/113
Enterodiol- sulfate Plasma 11.055 381.1010 C18H22O7S 0.53 92.51 301/253/107
Enterolactone Plasma, milk 17.550 297.1132 C18H18O4 −0.07 98.81 253/189/165/121/107
Enterolactone-glucuronide Plasma 12.437/12.618 473.1457 C24H26O10 −0.44 98.03 297/253/175/113
Enterolactone-sulfate Plasma 13.315 377.0701 C18H18O7S 0.07 95.95 297/253/107