Determination of adulteration of the fat phase of milk products with vegetable oils


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Abstract

A method for mass spectrometric identification of the sterol composition of the milk and milk products fat phase which comprises hydrolyzation of sterides in sterols (without preliminary extraction of fat), their chromatographic separation by gas-liquid chromatography and comparing received mass spectra of sterols with mass spectra and retention time of the standard substances is offered.

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References

  1. Межгосударственный стандарт ГОСТ 31663-2012 «Масла растительные и жиры животные. Определение методом газовой хроматографии массовой доли метиловых эфиров жирных кислот»
  2. Межгосударственный стандарт ГОСТ 31979-2012 «Молоко и молочные продукты. Метод обнаружения растительных жиров в жировой фазе газожидкостной хроматографией стеринов»
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