## 3 Results
\begin{table}
\begin{tabular}{l l l l l l l} \hline \hline
**Green Tea 4** & & & & & & & \\ \hline
**Ions, mg/10 g** & **Traditional Extraction** & & & & & & \\ \hline  & **Extraction Time** & & & & & & \\ \hline  & **1 min** & **5 min** & **10 min** & **1 min** & **5 min** & **10 min** \\ \hline Ca & 6.90 \({}^{\text{a}}\) & 7.17 \({}^{\text{a}}\) & 7.27 \({}^{\text{a}}\) & 7.03 \({}^{\text{a}}\) & 8.14 \({}^{\text{b}}\) & 8.39 \({}^{\text{b}}\) \\  “K & 49.59 \({}^{\text{a}}\) & 50.74 \({}^{\text{a}}\) & 137.46 \({}^{\text{b}}\) & 132.26 \({}^{\text{b}}\) & 166.76 \({}^{\text{c}}\) & 212.56 \({}^{\text{d}}\) \\ Mg & 2.44 \({}^{\text{a}}\) & 2.48 \({}^{\text{a}}\) & 8.35 \({}^{\text{b}}\) & 8.01 \({}^{\text{b}}\) & 10.61 \({}^{\text{c}}\) & 14.51 \({}^{\text{d}}\) \\ Na & 0.34 \({}^{\text{a}}\) & 0.38 \({}^{\text{a}}\) & 0.55 \({}^{\text{b}}\) & 0.51 \({}^{\text{b}}\) & 0.66 \({}^{\text{c}}\) & 0.77 \({}^{\text{d}}\) \\ \hline
**Green Tea 5** & & & & & & \\ \hline
**Ions, mg/10 g** & **Traditional Extraction** & & & & & \\ \hline  & **1 min** & **5 min** & **10 min** & **1 min** & **5 min** & **10 min** \\ \hline Ca & 6.95 \({}^{\text{a}}\) & 7.18 \({}^{\text{ab}}\) & 7.95 \({}^{\text{b}}\) & 7.80 \({}^{\text{b}}\) & 9.35 \({}^{\text{c}}\) & 10.46 \({}^{\text{d}}\) \\ K & 50.77 \({}^{\text{a}}\) & 63.64 \({}^{\text{b}}\) & 126.46 \({}^{\text{c}}\) & 129.06 \({}^{\text{c}}\) & 163.33 \({}^{\text{d}}\) & 195.63 \({}^{\text{e}}\) \\ Mg & 2.12 \({}^{\text{a}}\) & 2.93 \({}^{\text{a}}\) & 5.07 \({}^{\text{b}}\) & 5.25 \({}^{\text{b}}\) & 7.15 \({}^{\text{c}}\) & 8.78 \({}^{\text{d}}\) \\ Na & 0.25 \({}^{\text{a}}\) & 0.29 \({}^{\text{ab}}\) & 0.33 \({}^{\text{c}}\) & 0.30 \({}^{\text{bc}}\) & 0.33 \({}^{\text{c}}\) & 0.40 \({}^{\text{d}}\) \\ \hline
**Green Tea 6** & & & & & & \\ \hline
**Ions, mg/10 g** & **Traditional Extraction** & & & & & \\ \hline  & **Extraction Time** & & & & & \\ \hline  & **1 min** & **5 min** & **10 min** & **1 min** & **5 min** & **10 min** \\ \hline Ca & 5.78 \({}^{\text{a}}\) & 6.09 \({}^{\text{a}}\) & 6.87 \({}^{\text{b}}\) & 5.91 \({}^{\text{a}}\) & 6.12 \({}^{\text{a}}\) & 8.14 \({}^{\text{c}}\) \\ K & 41.67 \({}^{\text{a}}\) & 91.74 \({}^{\text{b}}\) & 126.93 \({}^{\text{c}}\) & 137.70 \({}^{\text{c}}\) & 216.57 \({}^{\text{d}}\) & 221.83 \({}^{\text{d}}\) \\ Mg & 2.72 \({}^{\text{a}}\) & 5.76 \({}^{\text{b}}\) & 8.61 \({}^{\text{c}}\) & 9.19 \({}^{\text{c}}\) & 15.83 \({}^{\text{d}}\) & 17.32 \({}^{\text{e}}\) \\ Na & 0.35 \({}^{\text{a}}\) & 0.37 \({}^{\text{a}}\) & 0.45 \({}^{\text{b}}\) & 0.38 \({}^{\text{a}}\) & 0.44 \({}^{\text{b}}\) & 0.47 \({}^{\text{b}}\) \\ \hline  & & & & & & \\ \hline \hline \end{tabular} Means of ions with the same letter are not significantly different; \(\alpha=0.05\) (Tukey’s test), \(n=3\); <LOD—below the detection limit.  
\end{table} 
Table 5: Results of the content of measured ions (four macronutrients) in 3 green teas. In addition, sizable amounts of sulfur were extracted. Sulfur is part of the structure of insulin for which it is essential for proper metabolism. It is a building block of sulfur amino acids such as cystine, cysteine and methionine [64]. The average value of sulfate concentrations determined in the teas was 14.37 mg/10 g and 10.75 mg/10 g in the extract, with a single ingestion of the extract from the teas tested posing no risk of exceeding the daily intake. Heavy and toxic metals present in the extracts were aluminum and nickel. They have negative effects on the human body. Excess aluminum primarily affects the work of the human nervous system. Deposits of this element can accumulate in the brain, where they impair the work of the nervous system, block some of the enzymes and react with DNA in the cells of nervous tissues [65; 66]. Considering the type of teas, white teas showed the lowest aluminum content, while the average value of nickel in black teas was 0.04 mg/10 g.  
The next statistical step was to calculate the extraction recoveries for each type of tea, brewing time and booster factor.