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Table 1 Production of PHB in secreting (pCMEL3 + pLG575) and non-secreting (pBHR68 + pLG575) strains of E. coli at 24 and 48 h

From: Secretion of polyhydroxybutyrate in Escherichia coli using a synthetic biological engineering approach

   % mass of PHB in dry mass Production g/L PHB  
Strain Time (h) Secreted fraction Non- secreted fraction Secreted fraction Non-secreted fraction Total production g PHB/g Glucose
Non-secreting 24 0.31 ± 0.35 41.93 ± 13.5 0.40 ± 0.27 5.65 ± 1.1 6.05 ± 1.1 0.40 ± 0.07
  48 0.72 ± 0.89 47.24 ± 6.0 0.50 ± 0.41 5.43 ± 1.7 5.93 ± 1.8 0.40 ± 0.12
Secreting 24 0.69 ± 0.18 28.85 ± 0.41 0.40 ± 0.06 3.42 ± 0.33 3.82 ± 0.3 0.25 ± 0.02
  48 28.29 ± 7.2* 38.80 ± 15.5 2.57 ± 0.75* 4.58 ± 2.47 7.15 ± 2.6 0.48 ± 0.17
  1. *Indicates statistical significance within column (p < 0.05).