## 3 Results and Discussion
### Sterol Content in Olive Oils
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Farming Type** & **No.** & **Acid Value (\%)** & **Pervoide Value (mEq O\({}_{2}\)/kg)** & **K\({}_{268}\)** & **K\({}_{232}\)** & **\(\Delta\)K** \\ \hline \multirow{6}{*}{Organic} & 1 & 0.28 \({}^{\text{f}}\) \(\pm\) 0.00 & 7.25 \({}^{\text{f}}\)\(\pm\) 0.35 & 0.09 \({}^{\text{a}}\)\(\pm\) 0.00 & 0.1 \({}^{\text{a}}\)\(\pm\) 0.01 & \(-\)0.011 \({}^{\text{a}}\)\(\pm\) 0.003 \\ \cline{2-7}  & 2 & 0.41 \({}^{\text{c}}\)\(\pm\) 0.02 & 13.39 \({}^{\text{d}}\)\(\pm\) 0.24 & 0.08 \({}^{\text{a}}\)\(\pm\) 0.01 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.01 & \(-\)0.011 \({}^{\text{a}}\)\(\pm\) 0.004 \\ \cline{2-7}  & 3 & 0.32 \({}^{\text{e}}\)\(\pm\) 0.02 & 12.68 \({}^{\text{d}}\)\(\pm\) 0.45 & 0.10 \({}^{\text{a}}\)\(\pm\) 0.01 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.00 & \(-\)0.008 \({}^{\text{a}}\)\(\pm\) 0.001 \\ \cline{2-7}  & 4 & 0.42 \({}^{\text{c}}\)\(\pm\) 0.03 & 14.80 \({}^{\text{be}}\)\(\pm\) 0.41 & 0.09 \({}^{\text{a}}\)\(\pm\) 0.01 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.01 & \(-\)0.006 \({}^{\text{a}}\)\(\pm\) 0.001 \\ \cline{2-7}  & 5 & 0.36 \({}^{\text{d}}\)\(\pm\) 0.02 & 17.40 \({}^{\text{a}}\)\(\pm\) 0.39 & 0.10 \({}^{\text{a}}\)\(\pm\) 0.01 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.00 & \(-\)0.005 \({}^{\text{a}}\)\(\pm\) 0.002 \\ \hline \multirow{6}{*}{Conventional} & 6 & 0.54 \({}^{\text{b}}\)\(\pm\) 0.00 & 15.33 \({}^{\text{be}}\)\(\pm\) 0.50 & 0.10 \({}^{\text{a}}\)\(\pm\) 0.01 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.00 & \(-\)0.007 \({}^{\text{a}}\)\(\pm\) 0.002 \\ \cline{2-7}  & 7 & 0.26 \({}^{\text{b}}\)\(\pm\) 0.02 & 14.60 \({}^{\text{def}}\)\(\pm\) 1.13 & 0.09 \({}^{\text{a}}\)\(\pm\) 0.00 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.01 & \(-\)0.005 \({}^{\text{a}}\)\(\pm\) 0.001 \\ \cline{1-1} \cline{2-7}  & 8 & 0.56 \({}^{\text{a}}\)\(\pm\) 0.00 & 9.46 \({}^{\text{e}}\)\(\pm\) 0.33 & 0.09 \({}^{\text{a}}\)\(\pm\) 0.00 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.00 & \(-\)0.011 \({}^{\text{a}}\)\(\pm\) 0.005 \\ \cline{1-1} \cline{2-7}  & 9 & 0.40 \({}^{\text{c}}\)\(\pm\) 0.03 & 16.01 \({}^{\text{ab}}\)\(\pm\) 0.01 & 0.10 \({}^{\text{a}}\)\(\pm\) 0.00 & 0.12 \({}^{\text{a}}\)\(\pm\) 0.01 & \(-\)0.009 \({}^{\text{a}}\)\(\pm\) 0.004 \\ \hline \hline \end{tabular} Data are the means of three independent experiments \(\pm\) standard deviations (n = 3). a-g values in the same column with different lowercase letters indicate a significant difference at the 0.05 significance level (Tukey HSD).  
\end{table} 
Table 3: Acid value (%), peroxide value (mEq O\({}_{2}\)/kg), and extinction coefficients K\({}_{268}\), \(K_{232}\), and \(\Delta\)K of the tested oils from organic and conventional farming. [PERSON] et al. [30] reported K232 values of 1.54 to 2.32 and K268 values of 0.16 to 0.22 for conventional extra virgin olive oils. Similarly, [PERSON] et al. [31] reported relatively high extinction values in conventional oils: K268 ranged from 0.09 to 0.22, and K232 exceeded the limit in some samples, ranging from 1.48 to 2.99. Comparable results were obtained by [PERSON] et al. [32] and [PERSON] et al. [28], who found K232 values in organic oils ranging from 1.76 to 2.46 and from 1.74 to 2.34, respectively. K268's values ranged from 0.18 to 0.22 and from 0.14 to 0.19, respectively. Analysis of the DPPH Antiradical Capacity of Olive Oils, FRAP Iron Ion Reduction, and Determination of Selected Phenolic Acids  
Figure 2 presents the results of the antioxidant activity of olive oils determined by the DPPH assay. Higher DPPH values were observed in oils derived from conventional farming, particularly in sample no. 7. In contrast, oils from organic cultivation (sample nos. 1 to 4) exhibited lower but relatively consistent values, ranging from 0.25 to 0.28 umol TE/g, compared to their conventionally produced counterparts. Among all samples, organic olive oil no. 5 demonstrated the highest DPPH radical scavenging capacity, amounting to 0.39 umol TE/g. [PERSON] et al. [33] analyzed the antioxidant potential of conventional olive oils and reported values ranging from 0.068 to 0.942 umol TE/g.