Skip to main content

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