Sterol

This test is used in detecting adulteration.  Olive oil has a fairly stable sterol composition.  This test is normally needed if you are exporting.

• Cholesterol < 0.5%
• Brassicasterol < 0.1%
• Campesterol < 4.0%
• Stigmasterol < campesterol in edible oils
• Delta-7-stigmastenol < 0.5%
• Beta-sitosterol + delta-5-avenasterol + delta-5-23-stigmastadienol + clerosterol + sitostanol + delta 5-24-stigmastadienol > 93.0%
• Total sterol content (mg/kg)
• Virgin olive oils
• Refined olive oil > 1000