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Randomly generated Taguchi L9 orthogonal array for the experiment design with four variables and three factors: pH and concentrations of laccase, cellulase, and pectinase in IU.
| Taguchi L9 | pH | Laccase (UI) | Cellulase (UI) | Pectinase (UI) | Pattern |
|---|---|---|---|---|---|
| 1 | 4 | 5 | 5 | 5 | −−−− |
| 2 | 4 | 10 | 10 | 10 | −000 |
| 3 | 4 | 15 | 15 | 15 | −+++ |
| 4 | 5 | 5 | 10 | 15 | 0−0+ |
| 5 | 5 | 10 | 15 | 5 | 00+− |
| 6 | 5 | 15 | 5 | 10 | 0+−0 |
| 7 | 6 | 5 | 15 | 10 | +−+0 |
| 8 | 6 | 10 | 5 | 15 | +0−+ |
| 9 | 6 | 15 | 10 | 5 | ++0− |
