Production and Partial Characterization of α-Amylase Enzyme from Marine Actinomycetes

Table 2

The test results for seven cultural variables of the applied design of the Plackett-Burman experimental design.

Trail	S	KN	Ca	Mg	K2	pH	T
1	−1	−1	−1	1	1	1	−1
2	1	−1	−1	−1	−1	1	1
3	−1	1	−1	−1	1	−1	1
4	1	1	−1	1	−1	−1	−1
5	−1	−1	1	1	−1	−1	1
6	1	−1	1	−1	1	−1	−1
7	−1	1	1	−1	−1	1	−1
8	1	1	1	1	1	1	1
9	0	0	0	0	0	0	0

S: starch; KN: KNO₃; Ca: casein; Mg: MgSO₄; K₂: K₂HPO₄; T: temperature.