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Table 1 Coded and real values of medium components selected in PBD

From: Optimized medium via statistical approach enhanced threonine production by Pediococcus pentosaceus TL-3 isolated from Malaysian food

Variables

Symbol code

Unit

Coded values

− 1

+ 1

Glucose

A

g/L

0

20

Sucrose

B

g/L

0

17.69

Fructose

C

g/L

0

19.08

Lactose

D

g/L

0

18.86

Molasses

E

g/L

0

25.08

Yeast extract

F

g/L

0

4

Peptone

G

g/L

0

10

Meat extract

H

g/L

0

8

K2HPO4

J

g/L

0

2

KH2PO4

K

g/L

0

2

Urea

L

g/L

0

3

NH4NO3

M

g/L

0

5

(NH4)2SO4

N

g/L

0

5

(NH4)2HC6H5O7

O

g/L

0

2

NaOAc

P

g/L

0

5

MgSO4

Q

g/L

0

0.2

MnSO4

R

g/L

0

0.04

Tween 80

S

mL/L

0

1

FeSO4

T

g/L

0

0.01

ZnSO4

U

g/L

0

0.01

CuSO4

V

g/L

0

0.01

Biotin

W

g/L

0

0.06