Table 3.
Concentrations of elements (mg/kg) in Croatian pumpkin seed oils from 2011 and 2012 subgroups
| Element | 2011 (n = 19) | 2012 (n = 39) | ||
|---|---|---|---|---|
| Mean ± SD | Range | Mean ± SD | Range | |
| Li | <LOQ | <LOQ | <LOQ | <LOQ |
| Na | 8.084 ± 6.806 | <LOQ–20.219 | 5.737 ± 5.544 | <LOQ–19.169 |
| K | 23.747 ± 16.679 | 1.312–58.318 | 17.562 ± 14.539 | 1.407–83.713 |
| Ba | 0.060 ± 0.016 | 0.036–0.095 | 0.057 ± 0.028 | <LOQ–0.142 |
| Ca | 12.622 ± 11.997 | 0.597–39.684 | 10.659 ± 6.949 | 1.324–27.231 |
| Mg | 34.310 ± 24.801 | 3.100–83.941 | 27.108 ± 16.936 | <LOQ–62.154 |
| Be | <LOQ | <LOQ | <LOQ | <LOQ |
| Sr | 0.021 ± 0.025 | <LOQ–0.050 | 0.002 ± 0.009 | <LOQ–0.049 |
| Cr | 0.033 ± 0.142 | <LOQ–0.619 | <LOQ | <LOQ |
| Mo | <LOQ | <LOQ | <LOQ | <LOQ |
| Co* | <LOQ | <LOQ | 0.013 ± 0.017 | <LOQ–0.042 |
| Ni | <LOQ | <LOQ | <LOQ | <LOQ |
| Mn | 0.152 ± 0.121 | <LOQ–0.408 | 0.159 ± 0.110 | <LOQ–0.370 |
| Cu* | 0.216 ± 0.008 | 0.192–0.222 | 0.794 ± 0.937 | <LOQ–3.821 |
| Fe | 1.479 ± 1.734 | <LOQ–5.995 | 2.568 ± 4.837 | <LOQ–25.408 |
| Ag | <LOQ | <LOQ | <LOQ | <LOQ |
| V | <LOQ | <LOQ | <LOQ | <LOQ |
| Cd | <LOQ | <LOQ | <LOQ | <LOQ |
| Pb | <LOQ | <LOQ | <LOQ | <LOQ |
| Zn | <LOQ | <LOQ | <LOQ | <LOQ |
| Se* | 2.990 ± 0.563 | 2.131–4.103 | 2.538 ± 0.700 | 1.491–5.209 |
| Sn | 1.007 ± 0.306 | <LOQ–1.545 | 0.795 ± 0.594 | <LOQ–1.716 |
| Al | 0.628 ± 0.254 | 0.294–1.122 | 1.041 ± 1.235 | <LOQ–6.696 |
| B | <LOQ | <LOQ | 0.266 ± 0.576 | <LOQ–1.540 |
| Bi | 0.033 ± 0.032 | <LOQ–0.097 | 0.033 ± 0.035 | <LOQ–0.100 |
| Tl* | 0.697 ± 0.380 | <LOQ–1.054 | <LOQ | <LOQ |
| Ga | <LOQ | <LOQ | 0.016 ± 0.052 | <LOQ–0.195 |
| La | <LOQ | <LOQ | <LOQ | <LOQ |
| Te | <LOQ | <LOQ | <LOQ | <LOQ |
| Sb | <LOQ | <LOQ | <LOQ | <LOQ |
| Si | <LOQ | <LOQ | <LOQ | <LOQ |
| As | <LOQ | <LOQ | <LOQ | <LOQ |
<LOQ: below the limit of quantification.
*
Significant influence of crop season (p ≤ 0.05).