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Table 2 Parametric estimations obtained from fitted experimental data to the equations (1-6).

From: Hyaluronic acid production by Streptococcus zooepidemicus in marine by-products media from mussel processing wastewaters and tuna peptone viscera

VARIABLES

MEDIUM A

MEDIUM B

MEDIUM C

MEDIUM D

BIOMASS (X)

values ± CI

values ± CI

values ± CI

values ± CI

X m (g l-1)

5.17 ± 0.06

3.81 ± 0.08

3.55 ± 0.05

3.67 ± 0.06

v x (g l-1 h-1)

1.32 ± 0.08

0.91 ± 0.09

0.93 ± 0.06

0.81 ± 0.06

λ x (h)

3.33 ± 0.14

3.48 ± 0.23

3.65 ± 0.14

3.46 ± 0.18

p-value

<0.001

<0.001

<0.001

<0.001

r (obs-pred)

0.999

0.999

0.999

0.999

HYALURONIC ACID (H)

values ± CI

values ± CI

values ± CI

values ± CI

H m (g l-1)

3.07 ± 0.03

2.41 ± 0.02

2.33 ± 0.10

2.46 ± 0.09

v h (g l-1 h-1)

0.82 ± 0.04

0.63 ± 0.03

0.49 ± 0.09

0.53 ± 0.08

λ h (h)

3.93 ± 0.10

4.07 ± 0.10

3.93 ± 0.48

3.90 ± 0.38

p-value

<0.001

<0.001

<0.001

<0.001

r (obs-pred)

0.999

0.999

0.997

0.998

LACTIC ACID (L)

values ± CI

values ± CI

values ± CI

values ± CI

L m (g l-1)

35.12 ± 0.56

33.04 ± 0.32

29.11 ± 0.55

30.83 ± 0.54

v l (g l-1 h-1)

8.53 ± 0.67

9.24 ± 0.49

7.12 ± 0.65

7.73 ± 0.68

λ l (h)

3.69 ± 0.18

4.07 ± 0.11

4.04 ± 0.21

3.93 ± 0.20

p-value

<0.001

<0.001

<0.001

<0.001

r (obs-pred)

0.999

0.999

0.999

0.998

SUBSTRATE (S)

values ± CI

values ± CI

values ± CI

values ± CI

S0 (g l-1)

45.81 ± 1.78

46.89 ± 1.74

50.63 ± 2.06

51.47 ± 1.60

Yx/s(g g-1)

0.11 ± 0.01

0.09 ± 0.01

0.11 ± 0.02

0.10 ± 0.01

m e (g g-1 h-1)

0.01 (NS)

0.06 (NS)

0.58 ± 0.16

0.43 ± 0.13

p-value

<0.001

<0.001

<0.001

<0.001

r (obs-pred)

0.997

0.997

0.995

0.997

YIELDS (Y)

values ± CI

values ± CI

values ± CI

values ± CI

Yh/x(g g-1)

0.58 ± 0.02

0.62 ± 0.02

0.61 ± 0.02

0.65 ± 0.02

p-value

<0.001

<0.001

<0.001

<0.001

r (obs-pred)

0.995

0.997

0.988

0.995

Yl/x(g g-1)

6.61 ± 0.22

8.63 ± 0.24

7.90 ± 0.22

8.43 ± 0.24

p-value

<0.001

<0.001

<0.001

<0.001

r (obs-pred)

0.996

0.998

0.995

0.999

  1. CI: confidence intervals (α = 0.05).
  2. p-value from F-Fisher test (α = 0.05).
  3. r = correlation coefficient between observed and predicted data.
  4. NS: not significant
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Microbial Cell Factories

ISSN: 1475-2859

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