Table 4 Estimated regression coefficients for CA production.

From: Utilization of apple pomace as a novel substrate for citric acid production by Yarrowia lipolytica

Term

Coefficient

SE coefficient

T

P

Constant

19.339

0.495

39.05

0.000

AP

5.706

0.456

12.53

0.000

pH

2.472

0.456

5.43

0.000

Time

7.666

0.456

16.83

0.000

AP x AP

-3.333

0.869

-3.84

0.003

pH x pH

2.727

0.869

3.14

0.011

Time x Time

-3.113

0.869

-3.58

0.005

AP x pH

0.914

0.509

1.79

0.103

AP x Time

5.236

0.509

10.28

0.000

pH x Time

0.581

0.509

1.14

0.280

  1. SE coefficient: standard error of the coefficient.