Table 1 Codes and actual values of the independent factors for central composite design (CCD) on betalain production from C. argentea var. plumosa.

From: Response surface optimization of abiotic elicitors for betalain production and antioxidant capacity in Celosia argentea cell suspension cultures

Code

Factor

Unit

Level

-1.31

-1

0

+ 1

+ 1.31

A

BAP

µM

0.72

1.33

2.22

3.11

3.71

B

MeJA

µM

46.64

48.00

50.00

52.00

53.36

C

CuSO4

µM

3.04

4.40

6.40

8.40

9.76

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