Nämä pitkäketjuiset menakinonit (K2) ovat hyvin rasvaliukoisia. Löytyi MK-10, MK-11 ja MK-12-kokoja.
J Lipid Res. 1968 Mar;9(2):176-9.
Characterization of vitamin K from bovine liver.
Matschiner JT, Amelotti JM. Abstract
Concentrated
fractions of vitamin K from bovine liver were purified by thin-layer
chromatography and fractions were analyzed by UV spectroscopy and mass
spectrometry. The chromatographic behavior of the purified vitamins was
compared with that of known compounds on thin layers of silica gel,
either untreated or impregnated with silver nitrate or paraffin. The
principal forms of vitamin K recovered from bovine liver were highly
lipophilic. Two fractions were obtained which collectively gave
identifiable mass spectra of menaquinone-10, menaquinone-11, and menaquinone-12.
Inga kommentarer:
Skicka en kommentar