# Chemical, Nutritional and Antioxidant Characteristics of Different Food Seeds
## 3 Results and Discussion
### FAs Composition
\begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline
**Fatty Acid** & \begin{tabular}{c} **Sunflower** \\ **Seed Oil** \\ \end{tabular} & \begin{tabular}{c} **Reference** \\ **[6]** \\ \end{tabular} & \begin{tabular}{c} **Poppy Seed** \\ **Oil** \\ \end{tabular} & \begin{tabular}{c} **Reference** \\ **[28]** \\ \end{tabular} & \begin{tabular}{c} **Flaxseed** \\ **Oil** \\ \end{tabular} & \begin{tabular}{c} **Reference** \\ **[14]** \\ \end{tabular} & \begin{tabular}{c} **Hempesed** \\ **Oil** \\ \end{tabular} & \begin{tabular}{c} **Reference** \\ **[12]** \\ \end{tabular} & \
\begin{tabular}{c} **Sesame** \\ **Seed Oil** \\ \end{tabular} &
\begin{tabular}{c} **Reference** \\ **[30]** \\ \end{tabular} \\ \hline C20:1 (n-9) & 1.60 \(\pm\) 0.04 & 0.18 & 0.45 \(\pm\) 0.03 & nd & 0.59 \(\pm\) 0.02 & 0.096 & 1.99 \(\pm\) 0.02 & 1.44 & 1.45 \(\pm\) 0.02 & 0.47 \\ \hline C20:4 (n-6) & nd & nd & nd & nd & nd & nd & nd & nd & nd & nd \\ \hline C20:5 (n-3) & 0.09 \(\pm\) 0.01 & nd & nd & nd & nd & nd & nd & nd & 0.05 \(\pm\) 0.01 & nd \\ \hline C22:0 & nd & nd & nd & nd & nd & nd & nd & 0.40 & nd & 0.26 \\ \hline C22:1 (n-9) & 0.22 \(\pm\) 0.02 & nd & nd & nd & nd & 0.026 & nd & nd & 0.14 \(\pm\) 0.01 & nd \\ \hline C23:0 & 1.67 \(\pm\) 0.02 & nd & nd & nd & nd & 0.0081 & 0.17 \(\pm\) 0.02 & nd & 2.86 \(\pm\) 0.03 & nd \\ \hline C24:0 & nd & nd & 0.003 \(\pm\) 0.01 & nd & nd & 0.0418 & 0.008 \(\pm\) 0.02 & nd & nd & 0.11 \\ \hline C24:1 (n-9)+ & 0.03 \(\pm\) 0.01 & nd & 0.08 \(\pm\) 0.01 & nd & nd & nd & nd & nd & nd \\ C22:6 (n-3) & & & & & & & & & & \\ \hline SFAs & 8.33 \(\pm\) 0.02 & 9.4 & 9.59 \(\pm\) 0.04 & 11.14 & 5.03 \(\pm\) 0.05 & 10.5 & 5.48 \(\pm\) 0.08 & 11.20 & 14.0 \(\pm\) 0.07 & 25.7 \\ \hline MUFAs & 28.7 \(\pm\) 0.08 & 28.3 & 10.3 \(\pm\) 0.09 & 13.70 & 6.28 \(\pm\) 0.08 & 15.6 & 8.29 \(\pm\) 0.07 & 13.34 & 24.0 \(\pm\) 0.05 & 35.2 \\ \hline PUFAs & 61.5 \(\pm\) 0.08 & 62.4 & 67.9 \(\pm\) 0.10 & 75.13 & 84.8 \(\pm\) 0.08 & 73.2 & 82.9 \(\pm\) 0.09 & 75.46 & 61.2 \(\pm\) 0.07 & 40.82 \\ \hline PUFAs/SFAs ratio & 7.4 \(\pm\) 0.04 & 6.63 & 7.1 \(\pm\) 0.01 & 6.74 & 16.9 \(\pm\) 0.02 & 7.00 & 15.1 \(\pm\) 0.09 & 6.7 & 4.4 \(\pm\) 0.07 & 1.58 \\ \hline \hline \end{tabular} Data are expressed as percentage of total FAMEs and represents mean \(\pm\) standard deviation (\(n=3\)); nd—the FA was not determined  
\end{table} 
Table 2: _Cont._FAs composition of the analyzed seed oils contains SFAs (caprylic acid (C8:0), lauric acid (C12:0), myristic acid (C14:0), palmitic acid (C16:0), stearic acid (C18:0), arachidic acid (C20:0), tricosanoic acid (C23:0) and lignoceric acid (C24:0)), MUFAs and PUFAs. The SFAs classes include: caprylic acid (C8:0), capric acid (C10:0), lauric acid (C12:0), myristic acid (C14:0), palmitic acid (C16:0), stearic acid (C18:0), arachidic acid (C20:0), eicosadienoic acid (C22:0), tricosanoic acid (C23:0) and lignoceric acid (C24:0). The predominant SFA identified in all the analyzed seed oils is palmitic acid (C16:0). The highest value of the palmitic acid was obtained in poppy seed oil (\(7.79\%\pm 0.07\%\)), while the lowest value was in flaxseed oil (\(2.51\%\pm 0.07\%\)). In addition, the stearic acid (C18:0) was found in a lower amount than palmitic acid. The highest amount of stearic acid (C18:0) was found in sesame seed oil (\(3.89\%\pm 0.02\%\)). Small traces of archidic acid (C20:0) were detected in all samples. A small amount of tricosanoic acid (C23:0) was found in sesame (\(2.86\%\pm 0.03\%\)), sunflower (\(1.67\%\pm 0.02\%\)) and hempseed oils (\(0.17\%\pm 0.02\%\)), respectively. Excessive consumption of SFAs has a negative effect on human health, especially at the cardiovascular level [32]. The vegetable oils contain five major FAs, such as stearic (C18:0, SFA), palmitic (C16:0, SFA), oleic (C18:1, n-9, MUFA), linoleic (C18:2, n-6, PUFA) and linolenic (C18:3, n-3, PUFA) acids [33]. The obtained results revealed a high content of oleic acid (C18:1 cis (n-9)) in sunflower seed oil (\(26.0\%\pm 0.50\%\)), followed by sesame seed oil (\(21.5\%\pm 0.60\%\)).