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Table 3 Economic and environmental evaluation between different carbon sources for C. necator

From: Preliminary integrated economic and environmental analysis of polyhydroxyalkanoates (PHAs) biosynthesis

Carbon sources Soybean oil WCO Refined glycerol Crude glycerol
Material cost (USD$/kg PHA) 1.631 1.180 0.484 0.362
HTPI (kg PHA−1) 0.192 0.533 0.061 1.000
TTP (kg PHA−1) 0.192 0.533 0.061 1.000
HTPE (kg PHA−1) 0.0002 0.0004 0.046 0.095
ATP (kg PHA−1) 1.184 3.590 0.003 0.003
GWP (kg PHA−1) 0.000 0.000 0.000 0.000
ODP (kg PHA−1) 0.000 0.000 0.000 0.000
POP (kg PHA−1) 0.000 0.000 0.959 1.958
AP (kg PHA−1) 0.000 0.000 0.000 0.000
Total PEI (kg PHA−1) 1.568 4.657 1.130 1.404
Environmental burdens (kg PHA−1) +1.568 −4.275 −1.062 −1.320