High levels of equol in organic skimmed Finnish cow milk.
The isoflavonoids, equol, formononetin, daidzein, genistein, biochanin A, and O-demethylangolensin (O-DMA), were analyzed from commercial cartons of skimmed Finnish milk by HPLC-diode array detector (DAD)-FL. We found 411 +/- 65 ng/mL of equol and traces of formononetin and daidzein in organic skimmed milk whereas conventionally produced milk contained 62 +/- 16 ng/mL of equol and no formononetin or daidzein.
Hoikkala
Antti
A
Department of Chemistry, Laboratory of Organic Chemistry, University of Helsinki, Helsinki, Finland.
Mustonen
Eeva
E
Saastamoinen
Ilkka
I
Jokela
Tuija
T
Taponen
Juhani
J
Saloniemi
Hannu
H
Wähälä
Kristiina
K
D000818:Animals; D002417:Cattle; D002851:Chromatography, High Pressure Liquid; D060754:Equol; D005387:Finland; D058870:Food, Organic / Q000032:analysis; D007529:Isoflavones / Q000032:analysis*; D008892:Milk / Q000737:chemistry*
C007610:4',7-dihydroxy-3,4-dihydroisoflavone; D007529:Isoflavones; C007768:formononetin; D060754:Equol; C004742:daidzein