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Table 1 Cell growth and PHA production by recombinant  P. putida  strains in the presence of fatty acids

From: Synthesis of Diblock copolymer poly-3-hydroxybutyrate -block-poly-3-hydroxyhexanoate [PHB-b-PHHx] by a β-oxidation weakened Pseudomonas putida KT2442

Strain

Substrate

CDW(g/l)

PHA (wt %)

PHB (mol %)

PHHx (mol %)

KTOYO6ΔC (phaPCJ A.c )

SB

3.71 ± 0.42

10.0 ± 0.31

100

0

 

SH

2.44 ± 0.24

14.64 ± 0.67

13.82 ± 2.30

86.18 ± 4.65

 

SB:SH (2:1)

4.75 ± 0.20

32.53 ± 0.74

74.35 ± 4.22

25.65 ± 3.27

 

SB:SH (1:2)

5.82 ± 0.10

57.80 ± 1.12

57.70 ± 4.29

42.33 ± 5.26

KTQQ20

SH

1.67 ± 0.02

22.03 ± 0.42

0

100

  1. SB: Sodium Butyrate, SH: Sodium hexanoate
  2. SB:SH (2:1): 3 gL-1 SB was added at 0 h and 12 h during the cultivation process to form the PHB block After 24 h 3 g L-1 SH was added to form the PHHx block
  3. SB:SH (1:2) : 3 gL-1 SB was added at 0 h and 3 g L-1 SH was fed at 12 h and 24 h of the cell growth.
  4. Each shake flask process continued for 48 h. 20 g/l of glucose was fed at 0 h as a nutrient in each case of block formation. PHA samples were analyzed by GC [27]
  5. All cells were grown in LB media for 48 h at 30 °C in the rotary shaker (HNY-2112B, Tianjin Honour Instrument Co. Ltd. China).