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Determination of phytate in the Turkish diet by phosphorus-31 Fourier transform nuclear magnetic resonance spectroscopy

1990-3
Ersoz, Arzu
Akgun, Hulya
Aras, Namik K.
ThephytatecontentofdailydietsamplesfromuppermiddleclassfamiliesinTurkeywasdeter-minedbyphosphorus-31Fouriertransformnuclearmagneticresonancespectroscopy(31PFTNMR).Samples,collectedbyaduplicate-portiontechnique,werehomogenizedandfreeze-dried.Dietsam-pleswerestirredfor0.5hinaqueous3%(w/v)trichloroaceticacid,EDTAwasadded,andthepHwasadjustedto4.5±0.5beforeanalysis.Theaveragephytatecontentof10dietsampleswasfoundtobe1.55±0.70g/kg