Table 3.

Kinetic parameters for formation of S‐equol phase II metabolites by pooled rat liver S9 fractions

	S‐equol glucuronide‐1	S‐equol glucuronide‐2
V max [nmol min−1 mg−1 S9 protein]	11.0	10.6
K m [µm]	22.5	13.7
Catalytic efficiency [mL min−1 mg−1 S9 protein]	0.49	0.77
Scaled V max [µmol h−1]	802.23	773.06
Scaled catalytic efficiency [L h−1]	35.65	56.43