Skip to main content

Table 2 Factors and levels used in two-level fractional factorial design.

From: Exobiopolymer production of Ophiocordyceps dipterigenaBCC 2073: optimization, production in bioreactor and characterization

Factor

Low level (-1)

Center point (0)

High level (+1)

A

20

40

60

B

6

10

14

C

0

1

2

D

0

1

2

E

25

27.5

30

  1. A = glucose (g·L-1), B = malt extract (g·L-1), C = vitamin solution (mL.L-1), D = trace element solution (mL.L-1), E = temperature (°C)
Back to article page

BMC Biotechnology

ISSN: 1472-6750

Contact us