Table 1: Plackett-Burman design showing the effect of various variables on the production of lipase from Aspergillus fumigatus.

Run Inoculum Size (spores/ml) Galactose
(%,w/v)
Peptone (%,w/v) pH Incubation Time (hrs) Temperature
(°C)
Response
(U/ml)
1 3 2 1.5 11 96 50 4.16
2 1.8 1 1.5 9 48 40 4.82
3 1.8 2 1.5 11 96 40 5.6
4 3 1 1.5 11 48 40 4.90
5 3 1 2.1 11 96 40 5.61
6 1.8 1 2.1 11 48 50 4.42
7 1.8 2 2.1 11 48 50 6.09
8 3 2 1.5 9 48 50 3.85
9 1.8 1 1.5 9 96 50 2.38
10 1.8 2 2.1 9 96 40 9.51
11 3 1 2.1 9 96 50 4.25
12 3 2 2.1 9 48 40 3.94