Table 4 Orthogonal test factors and level tables
From: Dynamic changes of secondary metabolites and tyrosinase activity of Malus pumila flowers
Level | Factor | ||
|---|---|---|---|
A Solid–liquid ratio (times) | B Ultrasound time (min) | C Centrifugal speed (r/min) | |
1 | 1:120 | 10 | 6000 |
2 | 1:100 | 20 | 8000 |
3 | 1:80 | 30 | 10,000 |