Table 4.
Quality parameters in terms of acidity (%), peroxide index (meq O2/kg) and Delta-k spectrophotometric analysis measured for the hemp seed oils under study. Results are expressed as mean of three independent measurements ± SD.
| Sample | Variety | Acidity (%) | Peroxide Value (meq O2/kg) |
Delta-k |
|---|---|---|---|---|
| Oil 1 | Uso-31 | 9.9 ± 0.08 | 6.5 ± 0.07 | 0.015± 0.003 |
| Oil 2 | Blend 1 | 7.9 ± 0.01 | 4.2 ± 0.01 | 0.029 ± 0.002 |
| Oil 3 | Codimono | 5.1 ± 0.09 | 1.8 ± 0.15 | 0.022 ± 0.001 |
| Oil 4 | Futura 75 | 2.8 ± 0.06 | 6.8 ± 0.003 | 0.019 ± 0.001 |
| Oil 5 | Blend 2 | 1.3 ± 0.01 | 5.3 ± 0.003 | 0.013 ± 0.003 |
| Oil 6 | Zenit | 5.1 ± 0.01 | 6.3 ± 0.75 | 0.019 ± 0.002 |
| Oil 7 | Blend 3 | 6.8 ± 0.08 | 4.8 ± 0.20 | 0.027 ± 0.001 |
| Oil 8 | Secuieni jubileu | 4.9 ± 0.20 | 5.3 ± 0.50 | 0.029 ± 0.003 |
| Oil 9 | Uso-31 | 6.2 ± 0.03 | 8.8 ± 0.07 | 0.020 ± 0.002 |
| Oil 10 | Felina 32 | 2.1 ± 0.09 | 4.2 ± 0.30 | 0.047 ± 0.003 |
| Oil 11 | Blend 4 | 8.0 ± 0.07 | 3.8 ± 0.25 | 0.023 ± 0.001 |
| Oil 12 | Blend 5 | 1.7 ± 0.09 | 4.8 ± 0.15 | 0.024 ± 0.002 |
| Oil 13 | Futura 75 | 3.0 ± 0.06 | 3.0 ± 0.08 | 0.020 ± 0.003 |
| Skewness | 0.3 | 0.3 | 1.7 | |
| Kurtosis | −1.9 | 0.7 | 4.4 |