Abstract
AbstractThe triterpene alcohol fraction in several virgin olive oils and the corresponding oils refined by alkali and by physical processes was analyzed by gas chromatography. A Δ7 compound was detected in all refined olive oils but not in virgin olive oils. This compound was tentatively identified by gas chromatography‐mass spectrometry as 24‐methyl‐5α‐lanosta‐7,24‐dien‐3β‐ol, a 24‐methylenecycloartanol isomer produced during the refining process by the opening of the 9, 19 cyclopropane ring with formation of a double bond in the Δ7 position and the translocation of a double bond in the side chain from the 24–28 to the 24–25 position.
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