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Journal of Genetic Engineering and Biotechnology

Table 1 Variables and their codes used in Plackett-Burman design

From: Response surface methodological optimization of l-asparaginase production from the medicinal plant endophyte Acinetobacter baumannii ZAS1

Code

Nutrients (g/l)

Low (−1)

High (+ 1)

A

l-asparagine

2.5

12.5

B

Peptone

1

5

C

Glucose

0.2

1

D

Lactose

0.2

1

E

Yeast extract

1

5

F

NaCl

0.5

2.5

G

MgSO4

0.5

2.5

H

Na2HPO4

0.5

2.5

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