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Table 1 Box-Behnken design and predicted values of flavonoids from L. plumule

From: The optimization of ultrasonic-microwave assisted synergistic extraction of Lotus plumule extract rich in flavonoids and its hypoglycemic activity

Run Factor Extraction efficiency of LPF (%)
A: Microwave power (W) B: Ultrasonic power (W) C: Extraction time (min)
1 400 600 15 2.33
2 350 400 15 2.64
3 300 600 15 2.24
4 400 200 15 2.07
5 350 600 20 2.01
6 400 400 10 2.30
7 350 400 15 2.65
8 350 600 10 2.15
9 350 400 15 2.66
10 300 400 20 2.20
11 350 400 15 2.65
12 350 200 10 2.00
13 350 200 20 1.93
14 300 200 15 2.18
15 300 400 10 2.21
16 350 400 15 2.68
17 400 400 20 2.14