Table 3.
Method | Extraction Solvent | Extraction Temperature (°C) | Extraction Time (min) | Content (%) | Extraction Yield (mg/g) |
---|---|---|---|---|---|
MPET | water | 25 | 20 | 4.76 ± 0.14 | 35.17 ± 0.06 |
Ultrasound | 44.20% ethanol | 57 | 29.5 | 1.98 ± 0.09 | 33.56 ± 0.11 |
Microwave | 60% ethanol | - a | 25 | 1.73 ± 0.08 | 35.35 ± 0.09 |
Conventional heating | 80% ethanol | 85 | 60 + 60 | 2.01 ± 0.13 | 33.87 ± 0.10 |
Data are presented as mean ± SD (n = 3). a microwave power 420 W.