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Table 4 Growth and product kinetic parameters of B. thuringiensis during the batch and cyclic fed-batch fermentation

From: Optimization of cultivation medium and cyclic fed-batch fermentation strategy for enhanced polyhydroxyalkanoate production by Bacillus thuringiensis using a glucose-rich hydrolyzate

Fermentation

Time (h)

Residual glucose (g L−1)

CDW (g L−1)

PHA (g L−1)

PHA yield (%)

Biomass productivity (g L−1 h−1)

PHA productivity (g L−1 h−1)

Batch

36

6.98

7.75

3.22

41.54

0.258

0.107

CFBF cycle 1

29

8.09

8.75

3.22

36.8

0.302

0.111

CFBF cycle 2

52

8.05

16.29

8.95

54.94

0.313

0.172

CFBF cycle 3

65

7.94

20.99

14.28

68.03

0.323

0.219

CFBF cycle 4

72

7.96

18.52

11.28

60.90

0.257

0.157