Pure Appl. Chem.,
Vol. 71, No. 2, pp.349-359, 1999
CHEMISTRY AND THE
ENVIRONMENT DIVISION
COMMISSION ON OILS, FATS AND DERIVATIVES
The determination of stigmastadienes in vegetable
oils. Results of collaborative studies and the standardized method
(Technical report)
M.C.
Dobarganes, A. Cert and A.
Dieffenbacher
Abstract: The development by collaborative study of a standardised
method for the determination of the stigmastadienes content in vegetable
oils is described. The procedure involves the isolation of the unsaponifiable
matter in the oil ands its fractioning on a silica gel column. The fraction
containing the steroidal hydrocarbons is then analysed by capillary
gas chromatography and the quantitative assessment made by the use of
an internal standard /cholea-3,5-staddiene). The procedure is very sensitive
allowing determination at levels of 0.01 - 4.0 mg/kg.
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