## 3 Results  
The study to set the most appropriate solid: liquid ratio, are shown in Figure 1. As seen in the figure, yield of extracts is increased significantly until 1:20 solid: liquid ratio; after which, the yield remains almost constant, appreciating a plateau at 60 and 120 min of treatment. Therefore, this solid-liquid ratio was chosen to measure the effect of sonication time on the extraction, which is discussed later. Regarding this result, it is to be considered that the amount of solvent used is an important factor. Once this ratio was established, then the main compounds were extracted at different treatment times, recording the yield of the main compounds and the antioxidant effect by DPPH, as shown in Table 1.  
The next are the highest values, all in red Jamaican: Polyphenols 13.019 mg GAE/g dw (60 min sonication); Flavonoids 4.981 mg CE/g dw (sonication time 120 min); Anthocyanins 1.855 mg Cya3 GE/g dw (sonication time 40 min), Tannins 0.745 mg CE/g dw (sonication time, 120 min). The results in Table 1 were graphed with the purpose of appreciating and discussing their trend better, as shown in Figure 2.  
As can be seen Figure 2, extraction yield of phenols, flavonoids and anthocyanin was increased when the treatment was increased from 20 to 40 min, while at a higher sonication time, the yield is presented a plateau since it remained constant or with slight increases for both types of Jamaica. On the contrary, in the extraction of tannins, 20-40 min treatment was insufficient to obtain the best extraction percentage, so that more sonication time was necessary, which caused a significant increase in yields. Therefore, in red Roselle treatments of 20 and 40, show yields of almost similar tannins, however with 120 min of extraction, the increase was almost 100% compared to that obtained with 40 min. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \begin{tabular}{c} **Time of** \\ **Sonication** \\ \end{tabular}  & \begin{tabular}{c} **Solids Yield,** \\ **g/100 g dw** \\ \end{tabular}  & \begin{tabular}{c} **Polyphenols** \\ **mg GAE/g dw** \\ \end{tabular}  & \begin{tabular}{c} **Flavonoids** \\ **mg CE/g dw** \\ \end{tabular}  & \begin{tabular}{c} **Anthocyanins** \\ **mg Cya3G/g dw** \\ \end{tabular}  & \ \begin{tabular}{c} **Tannins** \\ **mg CE/g dw** \\ \end{tabular}  & \begin{tabular}{c} **DPPH, \%** \\ **mg CE/g dw** \\ \end{tabular}  \\ \hline \multicolumn{7}{c}{Red Calyx} \\ \hline
20 & \(9.98\pm 0.39\) \({}^{\mathrm{a}}\) & \(11.464\pm 0.90\) \({}^{\mathrm{a}}\) & \(2.201\pm 0.33\) \({}^{\mathrm{a}}\) & \(1.271\pm 0.54\) \({}^{\mathrm{a}}\) & \(0.344\pm 0.16\) \({}^{\mathrm{a}}\) & \(18.40\pm 10.54\) \({}^{\mathrm{a}}\) \\
40 & \(14.28\pm 2.77\) \({}^{\mathrm{a}}\) & \(12.711\pm 0.11\) \({}^{\mathrm{b}}\) & \(4.186\pm 1.03\) \({}^{\mathrm{b}}\) & \(1.855\pm 1.07\) \({}^{\mathrm{b}}\) & \(0.368\pm 10.15\) \({}^{\mathrm{a}}\) & \(34.36\pm 2.19\) \({}^{\mathrm{b}}\) \\
60 & \(20.84\pm 2.26\) \({}^{\mathrm{b}}\) & \(13.019\pm 0.12\) \({}^{\mathrm{b}}\) & \(4.416\pm 1.04\) \({}^{\mathrm{b}}\) & \(1.804\pm 1.05\) \({}^{\mathrm{b}}\) & \(0.592\pm 0.02\) \({}^{\mathrm{b}}\) & \(74.58\pm 6.62\) \({}^{\mathrm{c}}\) \\
120 & \(28.44\pm 2.26\) \({}^{\mathrm{c}}\) & \(12.947\pm 0.18\) \({}^{\mathrm{b}}\) & \(4.981\pm 0.88\) \({}^{\mathrm{b}}\) & \(1.763\pm 1.02\) \({}^{\mathrm{b}}\) & \(0.745\pm 0.038\) \({}^{\mathrm{b}}\) & \(72.07\pm 1.27\) \({}^{\mathrm{c}}\) \\ (S-L) \({}^{\mathrm{a}}\) & \(33.00\pm 1.697\) & \(65.287\pm 0.015\) & \(0.448\pm 0.084\) & \(0.902\pm 0.151\) & \(0.188\pm 0.002\) & \(52.89\pm 4.31\) \\  & & & & & & \\  &In white Roselle, the tannins were extracted until 60 min of treatment (yield of 0.021 mg CE/g dw), which was increased by 128.8% (0.0492 mg CE/g dw) with 120 min of treatment. Also, red Roselle (red lines) and white Roselle (orange lines) have similar content of polyphenols and flavonoids.