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. 2018 Feb 7;8(11):5936–5944. doi: 10.1039/c7ra12778b

Results of the L9 (3) orthogonal array.

Run Factors A initial cell density B induction period (h) C IPTG (mM) NDM-1 activity (U ml−1)
A B C
1 1 1 1 0.5 15 0.55 18
2 1 2 2 0.5 20 0.65 67
3 1 3 3 0.5 25 0.75 28
4 2 1 2 0.6 15 0.65 43
5 2 2 3 0.6 20 0.75 52
6 2 3 1 0.6 25 0.55 60
7 3 1 3 0.7 15 0.75 48
8 3 2 1 0.7 20 0.55 23
9 3 3 2 0.7 25 0.65 34
k1 37.67 36.33 33.67
k2 51.67 47.33 48.00
k3 35.00 40.67 42.67
Delt 16.67 11.00 14.33
Ran 1 3 2