Research Article
Raspberry Extract as Both a Stabilizer and a Reducing Agent in Environmentally Friendly Process of Receiving Colloidal Silver
Table 4
The plan matrix and the results of measured percentage of polyphenols extracted in relation to the dry matter.
| | Soxhlet apparatus | | Number | Factors examined | Output data | | Extraction process duration [h] | Dried fruit raspberries weight [g] | Percentage of extracted polyphenols in relation to the dry matter [%] |
| | 1 | 3.0 | 0.90 | 0.07 | | 2 | 3.0 | 9.45 | 0.02 | | 3 | 3.0 | 18.00 | 0.01 | | 4 | 5.5 | 0.90 | 0.08 | | 5 | 5.5 | 9.45 | 0.03 | | 6 | 5.5 | 18.00 | 0.02 | | 7 | 8.0 | 0.90 | 0.07 | | 8 | 8.0 | 9.45 | 0.04 | | 9 | 8.0 | 18.00 | 0.05 | | 10 | 5.5 | 9.45 | 0.03 |
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Round-bottom flask | | Number | Factors examined | Output data | | Extraction process temperature [°C] | Extraction process duration [min] | Dried fruit raspberries weight [g] | Percentage of extracted polyphenols in relation to the dry matter [%] |
| | 1 | 30 | 5.0 | 0.30 | 0.16 | | 2 | 30 | 92.5 | 6.00 | 0.19 | | 3 | 30 | 180.0 | 3.15 | 0.20 | | 4 | 50 | 5.0 | 6.00 | 0.22 | | 5 | 50 | 92.5 | 3.15 | 0.21 | | 6 | 50 | 180.0 | 0.30 | 0.14 | | 7 | 70 | 5.0 | 3.15 | 0.23 | | 8 | 70 | 92.5 | 0.30 | 0.16 | | 9 | 70 | 180.0 | 6.00 | 0.25 | | 10 | 50 | 92.5 | 3.15 | 0.21 |
| | High-pressure reactor | | Number | Factors examined | Output data | | Extraction process temperature [°C] | Extraction process duration [min] | Dried fruit raspberries weight [g] | Percentage of extracted polyphenols in relation to the dry matter [%] |
| | 1 | 90 | 5.0 | 0.30 | 0.20 | | 2 | 90 | 92.5 | 6.00 | 0.18 | | 3 | 90 | 180.0 | 3.15 | 0.19 | | 4 | 110 | 5.0 | 6.00 | 0.22 | | 5 | 110 | 92.5 | 3.15 | 0.20 | | 6 | 110 | 180.0 | 0.30 | 0.18 | | 7 | 130 | 5.0 | 3.15 | 0.40 | | 8 | 130 | 92.5 | 0.30 | 0.20 | | 9 | 130 | 180.0 | 6.00 | 0.23 | | 10 | 110 | 92.5 | 3.15 | 0.19 |
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