## 3 Results
### Biochemical Profiling
#### 3.1.2 Fatty Acid Profile
\begin{table}
\begin{tabular}{c c c c c} \hline \hline  & _L. ochroleuca_ & _S. polyschides_ & _M. pyrifera_ & **Residual Pulp** \\ \hline \multicolumn{4}{c}{**SFA (\% Total FA)**} \\ C14:0 & 6.53 \(\pm\) 0.56 \({}^{\rm c}\) & 5.31 \(\pm\) 0.50 \({}^{\rm c}\) & 13.29 \(\pm\) 0.66 \({}^{\rm a}\) & 9.71 \(\pm\) 0.82 \({}^{\rm b}\) \\ C15:0 & 0.73 \(\pm\) 0.05 \({}^{\rm a}\) & 0.49 \(\pm\) 0.02 \({}^{\rm b}\) & 0.42 \(\pm\) 0.02 \({}^{\rm b}\) & 0.43 \(\pm\) 0.03 \({}^{\rm b}\) \\ C16:0 & 33.9 \(\pm\) 0.40 \({}^{\rm b}\) & 40.25 \(\pm\) 1.37 \({}^{\rm a}\) & 21.50 \(\pm\) 0.34 \({}^{\rm c}\) & 18.54 \(\pm\) 0.47 \({}^{\rm d}\) \\ C17:0 & 0.16 \(\pm\) 0.01 \({}^{\rm b}\) & 0.26 \(\pm\) 0.00 \({}^{\rm a}\) & 0.19 \(\pm\) 0.04 \({}^{\rm a,b}\) & 0.19 \(\pm\) 0.04 \({}^{\rm a,b}\) \\ C18:0 & 1.43 \(\pm\) 0.04 \({}^{\rm b}\) & 3.07 \(\pm\) 0.12 \({}^{\rm a}\) & 1.70 \(\pm\) 0.78 \({}^{\rm b}\) & 1.46 \(\pm\) 0.53 \({}^{\rm b}\) \\ C20:0 & 0.32 \(\pm\) 0.01 \({}^{\rm b}\) & 1.97 \(\pm\) 0.22 \({}^{\rm a}\) & 0.27 \(\pm\) 0.03 \({}^{\rm b}\) & 0.32 \(\pm\) 0.03 \({}^{\rm b}\) \\ \(\sum\) Total SFA & 43.45 \(\pm\) 0.59 & 51.57 \(\pm\) 1.57 & 37.66 \(\pm\) 1.52 & 30.91 \(\pm\) 0.79 \\ \hline \multicolumn{4}{c}{**MUFA (\% Total FA)**} \\ C16:1 n-7 & 3.58 \(\pm\) 0.03 \({}^{\rm a}\) & 1.49 \(\pm\) 0.06 \({}^{\rm d}\) & 1.82 \(\pm\) 0.06 \({}^{\rm b}\) & 1.65 \(\pm\) 0.06 \({}^{\rm c}\) \\ C18:1 n-9 & 17.74 \(\pm\) 2.09 \({}^{\rm a}\) & 14.81 \(\pm\) 0.33 \({}^{\rm b}\) & 12.11 \(\pm\) 0.55 \({}^{\rm b}\) & 8.64 \(\pm\) 0.11 \({}^{\rm c}\) \\ C20:1 n-9 & 6.23 \(\pm\) 0.06 \({}^{\rm c}\) & 3.13 \(\pm\) 0.04 \({}^{\rm d}\) & 9.07 \(\pm\) 0.15 \({}^{\rm b}\) & 15.56 \(\pm\) 0.10 \({}^{\rm a}\) \\ \(\sum\) Total MUFA & 30.79 \(\pm\) 0.97 & 23.35 \(\pm\) 0.35 & 28.14 \(\pm\) 0.94 & 31.07 \(\pm\) 0.30 \\ \hline \multicolumn{4}{c}{**PUFA (\% Total FA)**} \\ C18:2 n-6 cis & 6.27 \(\pm\) 0.12 \({}^{\rm b}\) & 9.41 \(\pm\) 0.24 \({}^{\rm a}\) & 5.59 \(\pm\) 0.06 \({}^{\rm c}\) & 5.53 \(\pm\) 0.05 \({}^{\rm c}\) \\ C18:3 n-3 (ALA) & 3.38 \(\pm\) 0.10 \({}^{\rm c}\) & 2.54 \(\pm\) 0.06 \({}^{\rm d}\) & 5.68 \(\pm\) 0.04 \({}^{\rm b}\) & 8.54 \(\pm\) 0.06 \({}^{\rm a}\) \\ C20:4 n-6 (ARA) & 8.64 \(\pm\) 0.17 \({}^{\rm c}\) & 9.24 \(\pm\) 0.72 \({}^{\rm c}\) & 14.55 \(\pm\) 0.50 \({}^{\rm a}\) & 10.70 \(\pm\) 0.52 \({}^{\rm b}\) \\ C20:5 n-3 (EPA) & 5.90 \(\pm\) 0.18 \({}^{\rm c}\) & 2.49 \(\pm\) 0.15 \({}^{\rm d}\) & 6.80 \(\pm\) 0.16 \({}^{\rm b}\) & 11.14 \(\pm\) 0.50 \({}^{\rm a}\) \\ C22:6 n-3 (DHA) & n.d. & 0.02 \(\pm\) 0.01 \({}^{\rm a}\) & 0.14 \(\pm\) 0.02 \({}^{\rm a}\) & 0.11 \(\pm\) 0.02 \({}^{\rm a}\) \\ \(\sum\) Other PUFA & 0.27 \(\pm\) 0.03 & 0.22 \(\pm\) 0.01 & 0.59 \(\pm\) 0.07 & 0.92 \(\pm\) 0.08 \\ \(\sum\) Total PUFA & 25.77 \(\pm\) 0.60 & 25.08 \(\pm\) 1.24 & 34.20 \(\pm\) 0.68 & 38.01 \(\pm\) 1.05 \\ \hline n-3/n-6 & 1.75 \(\pm\) 0.02 & 3.92 \(\pm\) 0.03 & 1.66 \(\pm\) 0.02 & 0.87 \(\pm\) 0.01 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Percentage of total fatty acids in the three seaweeds and residual pulp. Values are presented as mean \(\pm\) standard deviation (\(n\) = 3). SFA—saturated fatty acids, MUFA—monounsaturated fatty acids, PUFA—polyunsaturated fatty acids, ALA—linolenic acid, ARA—archidonic acid, EPA—eicosapentaenoic acid, DHA—docosahexaenoic acid. Different superscript lowercase letters (\({}^{\rm a,b,c,d}\)) indicate statistically significant differences between samples for a \(p\)-value < 0.05.  
amount of omega-6 fatty acids also varied significantly, reaching the highest value in _M. pyrifera_ (21.18 \(\pm\) 0.74%) and the lowest in _L. ochroleuca_ (16.22% \(\pm\) 0.29%). The values of the n6/n3 ratio were greater than one in all the samples, except for the residual pulp, which had a ratio of 0.87 \(\pm\) 0.01.