Table 9. Concentrations of isoflavones and thiols as determined by HPLC.

Compound Name	HMDB ID	Mean(µM/mM creatinine)	Oc (%)	Literature values (µM/mM creatinine)
Biochanin Aa	HMDB02338	0.0088 (0.0027–0.0200)	77	NA
Coumesterola	HMDB02326	0.0081 (0.0033–0.0120)	45	NA
Daidzeina	HMDB03312	0.026 (0.002–0.064)	88	0.036 ± 0.008
Equola	HMDB02209	0.06 (0.01–0.10)	67	0.13 ± 0.12
Formonenetina	HMDB05808	0.0007 (0.0002–0.0011)	33	NA
Genisteina	HMDB03217	0.0280 (0.0077–0.0640)	88	0.032 ± 0.007
L-Cysteineb	HMDB00574	81.0 (36.7–147.6)	100	33.4 ± 15.5
L-Cysteinylglycineb	HMDB00078	0.6 (0.28–1.54)	100	0.48 ± 0.15
L-Glutathioneb	HMDB00125	0.030 (0.005–0.085)	100	0.065
L-Homocysteineb	HMDB00742	1.1 (0.6–1.7)	100	1.95 ± 1.47

^aIsoflavone metabolites measured by HPLC/UV.

^bThiol metabolites measured by HPLC/FD.

Oc: occurrence;

NA: not available.