Mj. Werman et al., A SIMPLE AND SENSITIVE METHOD FOR DETECTING AVOCADO SEED OIL IN VARIOUS AVOCADO OILS, Journal of the American Oil Chemists' Society, 73(5), 1996, pp. 665-667
The presence of avocado seed oil in various avocado oils was detected
by thin-layer chromatography (TLC). An unsaponifiable compound, called
Component-C, was identified in the avocado seed oil. This compound is
unique to avocado seed and has a blue color when developed on the TLC
plate. At least 9.2 mu g of avocado seed unsaponifiables were needed
at a single TLC spot to detect the unique blue color definitely. Admix
tures of as little as 0.16% avocado seed oil in various avocado oils c
an be detected by the proposed procedure.