Research Article
Optimization of Ultrasound-Assisted Extraction of Polyphenol Content from Zea mays Hairs (Waste)
Table 7
Predicted and experimental values of the responses at some extraction conditions.
| ā | Ethanol X1 (%) | Extraction time X3 (min) | Solid-liquid ratio X2 | Extraction yield (%) | TPC (mg EGA/g extract) |
| Optimum conditions | 70 | 40 | 11 | 31.37 | 257.86 | Predicted conditions | 70 | 40 | 11 | 30.25 | 255.34 |
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