ISO 15788-1:1999, Animal and vegetable fats and oils -- Determination of stigmastadienes in vegetable oils -- Part 1: Method using capillary-column gas chromatography (Reference method)

This part of ISO 15788 specifies a method for the determination of stigmastadienes in virgin vegetable oils containing low concentrations of these hydrocarbons, particularly in virgin olive oil.This method is applicable to all vegetable oils although measurements are reliable only where the content of these hydrocarbons lies between 0,01 mg/kg and 4,0 mg/kg. The method is suited to detecting the presence of refined vegetable oils (olive, olive pomace, sunflower, palm, etc.) in virgin olive oils, since refined oils contain stigmasta-dienes and cold-extracted oils do not. This title may contain less than 24 pages of technical content.