Research Article
Ultrasonic-Assisted Extraction of Natural Yellow Pigment from Physalis pubescens L. and Its Antioxidant Activities
Table 3
Results of response surface experiment.
| Run | Ultrasonic power (%) | Ultrasonic time (min) | Ultrasonic interval time | Yield (%) | A | B | C |
| 1 | −1 | −1 | 0 | 0.177 | 2 | 1 | −1 | 0 | 0.116 | 3 | −1 | 1 | 0 | 0.110 | 4 | 1 | 1 | 0 | 0.094 | 5 | −1 | 0 | −1 | 0.111 | 6 | 1 | 0 | −1 | 0.101 | 7 | −1 | 0 | 1 | 0.123 | 8 | 1 | 0 | 1 | 0.132 | 9 | 0 | −1 | −1 | 0.116 | 10 | 0 | 1 | −1 | 0.111 | 11 | 0 | −1 | 1 | 0.126 | 12 | 0 | 1 | 1 | 0.136 | 13 | 0 | 0 | 0 | 0.171 | 14 | 0 | 0 | 0 | 0.201 | 15 | 0 | 0 | 0 | 0.192 | 16 | 0 | 0 | 0 | 0.192 | 17 | 0 | 0 | 0 | 0.197 |
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