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. 2021 Mar 26;31(5):717–725. doi: 10.4014/jmb.2103.03018

Table 2.

Experimental design and response values of Plackett-Burman design.

Run Variablesa Biomass (g/l)

X1 (g/l) X2 (g/l) X3 (g/l) X4 (g/l) X5 (g/l) X6 (g/l)
1 1 (30) -1 (10) 1 (30) -1 (5) -1 (5) -1 (5) 2.036
2 1 (30) 1 (30) -1 (10) 1 (10) -1 (5) -1 (5) 2.407
3 -1 (10) 1 (30) 1 (30) -1 (5) 1 (10) -1 (5) 2.109
4 1 (30) -1 (10) 1 (30) 1 (10) -1 (5) 1 (10) 2.407
5 1 (30) 1 (30) -1 (10) 1 (10) 1 (10) -1 (5) 2.561
6 1 (30) 1 (30) 1 (30) -1 (5) 1 (10) 1 (10) 2.360
7 -1 (10) 1 (30) 1 (30) 1 (10) -1 (5) 1 (10) 2.232
8 -1 (10) -1 (10) 1 (30) 1 (10) 1 (10) -1 (5) 2.181
9 -1 (10) -1 (10) -1 (10) 1 (10) 1 (10) 1 (10) 2.432
10 1 (30) -1 (10) -1 (10) -1 (5) 1 (10) 1 (10) 2.514
11 -1 (10) 1 (30) -1 (10) -1 (5) -1 (5) 1 (10) 2.122
12 -1 (10) -1 (10) -1 (10) -1 (5) -1 (5) -1 (5) 2.079

Actual values are presented in parentheses.

aX1, maltose; X2, sucrose; X3, lactose; X4, yeast extract; X5, soytone; X6, tryptone.