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Table 2 Chemical analysis results performed by IOC laboratories on eight olive oils purchased in USA (Miami)

From: Panel test and chemical analyses of commercial olive oils: a comparative study

  Free acidity (% oleic acid) Peroxide index (meq O2/kg) K 232 K 270 ΔK FAEE (mg/kg) Stigmadienes (mg/kg)
Ou 1
 Greece /* / / / / / /
 Slovenia 0.41 ± 0.03 9.1 ± 1.6 2.17 ± 0.04 0.130 ± 0.009 −0.002 ± 0.001 34.5 ± 4.8 0.0117 ± 0.0021
 Spain 1 / / / / / / /
 Spain 2 0.39 10.60 2.27 0.13 <0.01 38.80 <0.05
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.4 ± 0.1 10 ± 2 2.32 ± 0.20 0.14 ± 0.04 0.00 ± 0.01 35 ± 9 <0.01 ± 0.01
 Sicily (IT) 0.40 ± 0.05 10 ± 3 2.04 ± 0.05 0.09 ± 0.02 0.002 ± 0.006 37 ± 10 0.01 ± 0.02
 Veneto (IT) 0.40 ± 0.06 10.0 ± 2.3 2.45 ± 0.39 0.15 ± 0.04 0.003 ± 0.002 34 0.02
Ou 2
 Greece / / / / / / /
 Slovenia 0.27 ± 0.03 16.0 ± 2.9 2.79 ± 0.04 0.225 ± 0.009 0.004 ± 0.001 <15 0.089 ± 0.016
 Spain 1 / / / / / / /
 Spain 2 / / / / / / /
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.3 ± 0.1 18 ± 2 2.98 ± 0.26 0.23 ± 0.07 0.00 ± 0.01 22 ± 6 0.10 ± 0.02
 Sicily (IT) 0.28 ± 0.05 20 ± 3 2.76 ± 0.05 0.24 ± 0.02 0.002 ± 0.006 22 ± 7 0.10 ± 0.03
 Veneto (IT) 0.27 ± 0.06 17.8 ± 2.3 3.08 ± 0.39 0.24 ± 0.04 0.002 ± 0.002 15 0.06
Ou 3
 Greece / / / / / / /
 Slovenia 0.41 ± 0.03 12.0 ± 2.2 2.84 ± 0.04 0.266 ± 0.009 0.006 ± 0.001 18.6 ± 2.6 0.0392 ± 0.0071
 Spain 1 / / / / / / /
 Spain 2 0.41 16.90 2.71 0.28 0.01 27.60 <0.05
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.4 ± 0.1 14 ± 2 2.98 ± 0.26 0.28 ± 0.09 0.00 ± 0.01 25 ± 6 0.05 ± 0.01
 Sicily (IT) 0.43 ± 0.05 16 ± 3 2.79 ± 0.05 0.29 ± 0.02 0.006 ± 0.006 28 ± 8 0.05 ± 0.02
 Veneto (IT) 0.41 ± 0.06 14.6 ± 2.3 3.02 ± 0.39 0.30 ± 0.04 0.005 ± 0.002 28 0.06
Ou 4
 Greece / / / / / / /
 Slovenia 0.21 ± 0.03 7.9 ± 1.4 1.90 ± 0.04 0.140 ± 0.009 −0.001 ± 0.001 39.0 ± 5.5 0.0162 ± 0.0029
 Spain 1 / / / / / / /
 Spain 2 0.21 8.80 2.05 0.14 <0.01 47.80 <0.05
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.2 ± 0.1 8 ± 2 2.00 ± 0.17 0.16 ± 0.05 0.00 ± 0.01 45 ± 11 0.01 ± 0.01
 Sicily (IT) 0.21 ± 0.05 10 ± 3 1.85 ± 0.05 0.14 ± 0.02 0.007 ± 0.006 49 ± 13 0.02 ± 0.02
 Veneto (IT) 0.21 ± 0.06 8.3 ± 2.3 2.12 ± 0.39 0.18 ± 0.04 0.002 ± 0.002 46 0.05
Ou 5
 Greece / / / / / / /
 Slovenia 0.21 ± 0.03 8.6 ± 1.6 1.92 ± 0.04 0.238 ± 0.009 0.007 ± 0.001 39.5 ± 5.5 0.0331 ± 0.0060
 Spain 1 / / / / / / /
 Spain 2 0.20 9.60 2.04 0.24 0.01 43.20 <0.05
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.3 ± 0.1 9 ± 2 2.16 ± 0.19 0.27 ± 0.08 0.01 ± 0.01 43 ± 11 0.03 ± 0.01
 Sicily (IT) 0.22 ± 0.05 10 ± 3 1.99 ± 0.05 0.26 ± 0.02 0.007 ± 0.006 48 ± 13 0.03 ± 0.02
 Veneto (IT) 0.22 ± 0.06 8.7 ± 2.3 2.10 ± 0.39 0.25 ± 0.04 0.006 ± 0.002 38 0.03
Ou 6
 Greece / / / / / / /
 Slovenia 0.25 ± 0.03 9.9 ± 1.8 2.00 ± 0.04 0.129 ± 0.009 −0.003 ± 0.001 29.7 ± 4.2 0.0084 ± 0.0015
 Spain 1 / / / / / / /
 Spain 2 0.23 13.20 2.04 0.13 <0.01 35.00 <0.05
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.30 ± 0.01 11 ± 2 2.03 ± 0.18 0.14 ± 0.05 0.00 ± 0.01 32 ± 8 0.01 ± 0.01
 Sicily (IT) 0.39 ± 0.05 9 ± 3 1.93 ± 0.05 0.13 ± 0.02 0.003 ± 0.006 34 ± 9 0.01 ± 0.02
 Veneto (IT) 0.24 ± 0.06 10.9 ± 2.3 2.14 ± 0.39 0.15 ± 0.04 0.004 ± 0.002 29 0.05
Ou 7
 Greece / / / / / / /
 Slovenia 0.27 ± 0.03 10.0 ± 1.8 1.95 ± 0.04 0.148 ± 0.009 −0.001 ± 0.001 63.8 ± 8.9 0.0257 ± 0.0046
 Spain 1 / / / / / / /
 Spain 2 0.26 11.80 1.99 0.14 <0.01 67.40 <0.05
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.3 ± 0.1 10 ± 2 2.07 ± 0.18 0.14 ± 0.05 0.00 ± 0.01 65 ± 17 0.01 ± 0.01
 Sicily (IT) 0.27 ± 0.05 12 ± 3 1.95 ± 0.05 0.15 ± 0.02 0.001 ± 0.006 72 ± 18 0.01 ± 0.02
 Veneto (IT) 0.26 ± 0.06 10.7 ± 2.3 2.17 ± 0.39 0.16 ± 0.04 0.002 ± 0.002 60 0.02
Ou 8
 Greece / / / / / / /
 Slovenia 0.32 ± 0.03 8.0 ± 1.4 2.01 ± 0.04 0.145 ± 0.009 −0.002 ± 0.001 29.8 ± 4.2 <0.01
 Spain 1 / / / / / / /
 Spain 2 0.30 12.00 2.16 0.15 <0.01 33.20 <0.05
 Lazio (IT) / / / / / / /
 Liguria (IT) 0.3 ± 0.1 9 ± 2 2.15 ± 0.19 0.15 ± 0.04 0.00 ± 0.01 29 ± 8 0.01 ± 0.01
 Sicily (IT) 0.31 ± 0.05 8 ± 3 2.03 ± 0.05 0.16 ± 0.02 0.002 ± 0.006 32 ± 9 0.01 ± 0.02
 Veneto (IT) 0.29 ± 0.06 10.1 ± 2.3 2.20 ± 0.39 0.16 ± 0.04 0.003 ± 0.002 28 0.04
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