## 3 Results and Discussion
### Mineral Content  
The contents of K, Ca, Zn, Fe, and Mg in the fruit under different drying conditions are shown in Table 2. The mineral contents were higher in shade-dried samples compared with  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Parameter**} & \multicolumn{4}{c}{**Drying Conditions**} \\ \cline{2-5}  & **Shade-Dried** & **Sun-Dried** & **Oven-Dried** & **Fresh Sample** \\ \hline Protein (\%) & 0.57 \(\pm\) 0.01 a  & 0.46 \(\pm\) 0.02 a  & 0.35 \(\pm\) 0.03 a  & \\ Fat (\%) & 1.02 \(\pm\) 0.01 a  & 0.94 \(\pm\) 0.11 a  & 0.86 \(\pm\) 0.19 a  & \\ Ash (\%) & 1.00 \(\pm\) 0.06 a  & 1.02 \(\pm\) 0.02 a  & 0.93 \(\pm\) 0.06 a  & 1.43 \(\pm\) 0.05 \\ Moisture (\%) & 4.15 \(\pm\) 0.09 a  & 3.77 \(\pm\) 0.29 a  & 2.80 \(\pm\) 0.14 b  & 76.39 \(\pm\) 0.60 \\ Fiber (\%) & 2.35 \(\pm\) 0.61 a  & 2.23 \(\pm\) 0.71 a  & 1.97 \(\pm\) 0.34 a  \\ Carbohydrate (\%) & 13.3 \(\pm\) 1.05 a  & 13.66 \(\pm\) 1.17 a  & 14.13 \(\pm\) 0.71 a  \\ Energy (\%) & 3.35 \(\pm\) 0.03 a  & 3.29 \(\pm\) 0.02 a  & 3.26 \(\pm\) 0.001 a  \\ \hline \hline \end{tabular}  
* Means with the same superscript letters with the same column show no significant difference at \(p\) > 0.05. The values are reported in the form of the mean \(\pm\) SD taken from the triplicated trials.  
\end{table}
Table 1: Proximate composition of _Physalis perviana_ L. fruit.  
those in the other drying conditions, suggesting that heating affects the mineral composition of the fruit. The mineral contents of fruit studied from the three Andean regions of Peru were found to have some differences in fruits with the same reaction protocol [18].  
In the studied sample, the content of potassium in the shade-dried samples was found to be the highest (313.66 \(\pm\) 0.05 g/100 g) compared to other minerals. It is reported that K reduces blood pressure in adults [19]. The adequate intake (AI) for adults aged from 31 to 50 is 4700 mg/day [20]. The calcium content reported in this study is lower than that reported by [PERSON] et al. [18], but higher than the report by [PERSON] et al. [21]. Calcium is important to maintain strong bones. The recommended dietary allowance (RDA) value for calcium for females and males aged 31-50 is 1000 mg/day [20]. The magnesium content in this study was 17.67 \(\pm\) 0.03 g/100 g for the shade-dried sample. Magnesium is a cofactor for protein synthesis, cellular energy production, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) synthesis, etc. [22]. The RDA values of magnesium for females and males are 320 and 420 g/day, respectively [20].  
The contents of iron (0.06 \(\pm\) 0.10-0.09 \(\pm\) 0.15%) and zinc (0.11 \(\pm\) 0.05-0.27 \(\pm\) 0.02%) were found to be lower in the fruit. Iron and zinc deficiencies are common in humans worldwide [23]. The presence of phytic acid in staple plants affects the amount of available iron [24]. The iron content observed in this study was found to be lower than that in previous studies. This variation might be attributed to growing location, as was evidenced by studies from three different areas showing different mineral contents in fruits [18]. The RDA values of iron for females and males are 18 and 8 mg/day, respectively; the RDA values of zinc for females and males aged 31-50 are 8 and 11 mg/day, respectively [20].  
Considering the above comparisons, some of the mineral contents vary (either lower or higher) with respect to the present study. This might occur due to different reasons, such as the type of soil, genetics, and climate conditions.