||I U P A C
Organizations & People
Pure Appl. Chem.,
Vol. 71, No. 2, pp.349-359, 1999
CHEMISTRY AND THE
COMMISSION ON OILS, FATS AND DERIVATIVES
The determination of stigmastadienes in vegetable
oils. Results of collaborative studies and the standardized method
Dobarganes, A. Cert and A.
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.
Text (144k pdf)
Page last modified 14 May 2000.
Copyright ©1997-2000 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact Web