The method consists in preparing of sterol digitonides and dissolving in a mixture of formamide and dimethylformamide, extraction of the liberated sterols with pentane, separation of the sterols using a suitable gas chromatograph. If, on the chromatogram, a peak with the retention time of beta-sitosterol is obtained, the presence of vegetable fat in the sample is demonstrated. Peaks of other phytosterols may support this conclusion.

General information

  • Status :  Withdrawn
    Publication date : 1976-12
  • Edition : 1
    Number of pages : 5
  • :
    ISO/TC 34/SC 5
    Milk and milk products
  • 67.100.10
    Milk and processed milk products

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