Table 3 Twelve trial Plackett Burman design matrix for the experimental variables with coded values for melanin production
From: Improved production of melanin from Aspergillus fumigatus AFGRD105 by optimization of media factors
Runs | Experimental parameter | Response (mg/L) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | ||
1 | −1 | −1 | +1 | −1 | +1 | +1 | −1 | +1 | +1 | +1 | −1 | 15.6 |
2 | −1 | −1 | −1 | +1 | −1 | +1 | +1 | −1 | +1 | +1 | +1 | 16.7 |
3 | −1 | +1 | +1 | −1 | +1 | +1 | +1 | −1 | −1 | −1 | +1 | 17.5 |
4 | +1 | −1 | +1 | +1 | +1 | −1 | −1 | −1 | +1 | −1 | +1 | 11.8 |
5 | −1 | −1 | −1 | −1 | −1 | −1 | −1 | −1 | −1 | −1 | −1 | 19.8 |
6 | +1 | +1 | −1 | +1 | +1 | +1 | −1 | −1 | −1 | +1 | −1 | 17.6 |
7 | +1 | −1 | +1 | +1 | −1 | +1 | +1 | +1 | −1 | −1 | −1 | 16.7 |
8 | +1 | −1 | −1 | −1 | +1 | −1 | +1 | +1 | −1 | +1 | +1 | 12.3 |
9 | +1 | +1 | +1 | −1 | −1 | −1 | +1 | −1 | +1 | +1 | −1 | 14.5 |
10 | −1 | +1 | −1 | +1 | +1 | −1 | +1 | +1 | +1 | −1 | −1 | 18.9 |
11 | +1 | +1 | −1 | −1 | −1 | +1 | −1 | +1 | +1 | −1 | +1 | 14.9 |
12 | −1 | +1 | +1 | +1 | −1 | −1 | −1 | +1 | −1 | +1 | +1 | 12.3 |