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Applied Biological Chemistry

Table 1 Codes schedule of variables using BBD

From: Synthesis, characterization, and antioxidant activity in vitro of selenium-Euryale ferox Salisb. polysaccharide

Variables

Code and level

− 1

0

+ 1

X1, reaction time (h)

4

5

6

X2, reaction temperature (℃)

70

80

90

X3, mass ratio of Na2SeO3 to ESPS (g/g)

0.6

0.8

1.0

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