“…Olive oil samples E, H, and J contained 26.4, 24.9 and 41.7 mg kg -1 , respectively, indicating the presence of refined olive oil, which was expected given that this category of olive oil (a blend of virgin and refined olive oil) (PIIRONEN et al, 2000;GROB;ARTHO;MARIANI, 1992;CERT et al, 1994;SCHULTE, 1994). The extra virgin olive oil samples A, B, G, and I had very high levels of stigmastadiene and very high readings for E 270 (Table 1).…”