## 3 Results and Discussion
### Assessment of Nutritional Quality of Freeze-Dried Vegetable-Based Products  
Table 4 shows the average coverage of the daily requirement for nutrients (protein, fat, carbohydrates) and energy in the human diet by freeze-dried products based on vegetables produced with hydrocolloids. Daily protein requirements are best covered by bars of 3--\(\text{CPCB}_{\text{A}}\) and 4--\(\text{CPCB}_{\text{G}}\). This coverage is 1.72% for women and 1.47% for men, which means that to cover 100% of the demand would have to eat about 58 and 68 bars, respectively. The average daily protein coverage for all hydrocolloid bars is 1.45%. Coverage of the daily fat requirement is very low. The average for all bars with hydrocolloids is 0.2%, which means that to cover 100% of the fat requirement, would have to eat as many as 500 bars. The highest coverage of the  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Material**} & \multirow{2}{*}{**Layer**} & \multicolumn{2}{c}{**Iron**} & **Calcium** & **Potassium** & **Magnesium** \\ \cline{3-6}  & & & \multicolumn{4}{c}{**(mg/10g Product)**} \\ \hline \multirow{4}{*}{\(1\)—\(\text{CPB}_{\text{A}}\)} & I & 0.034 \(\pm\) 0.003 & 3.733 \(\pm\) 0.374 & 36.156 \(\pm\) 3.220 & 1.356 \(\pm\) 0.130 \\  & II & 0.061 \(\pm\) 0.007 & 2.223 \(\pm\) 0.276 & 38.602 \(\pm\) 3.306 & 1.990 \(\pm\) 0.150 \\  & III & 0.232 \(\pm\) 0.073 & 10.576 \(\pm\) 2.823 & 35.253 \(\pm\) 8.138 & 3.289 \(\pm\) 0.839 \\ \cline{2-6}  & **Overall** & **0.328 \(\pm\) 0.083 **a** **b** [FOOTNOTE:b]Footnote b: **CPCB**\({}_{\text{A}}\) and **CPCB**\({}_{\text{G}  
daily requirement was obtained for carbohydrates, which was in the range of 2.7-3.0%. Its highest value was achieved by bars 5--CYGP\({}_{\rm A}\) and 6--CYGP\({}_{\rm G}\)--2.95%, which meant that to cover 100% of the demand for sugar, about 34 bars should be consumed. The average coverage of the daily energy requirement was quite low. They were best covered by the 4--CPCB\({}_{\rm G}\) bar--0.70% for women and 0.54% for men. Average daily energy coverage for all hydrocolloid bars was 0.60%. Coverage of the daily requirement can be compared with the Reference Daily Intake (RDI) shown on the labels of commercial products. By comparing the tested freeze-dried vegetable-based products with Frupp bars available on the market, it can be concluded that they meet the human body's needs for nutrients to a greater extent. For example, an apple bar has an RDI which is 3% for carbohydrates and 0% for fat and protein. A bar with a vegetable added--banana, carrot, apple has slightly higher values: 4% for carbohydrates, 1% for protein, and 0% fat. Coverage of energy demand is greater for commercial bars, amounting to 2% for both the mentioned products [48]. The Crispy natural beetroot vegetable chips available on the market have a reference intake of 2.2% for protein and carbohydrates and 0% for fat per 10 g of product. These values are also lower, comparing them to the daily requirement coverage for bars without hydrocolloids. Hydrocolloid bars, on the other hand, have a lower CDR value for protein. Commercial beet chips meet the energy needs to a slightly better extent, as the reference intake for this value is 1.7% [79]. Table 5 shows the average coverage of the daily requirement for selected vitamins in the human diet by freeze-dried products based on vegetables produced with hydrocolloids. Coverage of the daily requirement for vitamin C has reached the highest levels. They are best satisfied by the bars of 5--CYGP\({}_{\rm A}\) and 6--CYGP\({}_{\rm G}\)--27.65% for women and 23.04% for men, which means that in order to cover 100% of the daily requirement, it would be necessary to consume 4 and 5 bars, respectively. The average coverage of the daily vitamin C requirement for all hydrocolloid bars is 21.18%. The highest daily coverage of vitamin E requirements is found in bars 1--CPB\({}_{\rm A}\) and 2--CPB\({}_{\rm G}\), for which this value is 4.10% for women and 3.28% for men.