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Table 1 Data of raw material cost and PEI

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

Chemicalsa Price (USD $/kg)a HTPI (kg−1)b TTP (kg−1)b HTPE (kg−1)b ATP (kg−1)b GWP (kg−1)b ODP (kg−1)b PCOP (kg−1)b AP (kg−1)b
Na2HPO4 0.25 0.045 0.045 0 0.002 0 0 0 0
KH2PO4 0.3 0.156 0.156 0 0.005 0 0 0 0
(NH4)2SO4 0.1 0.177 0.177 0 0.025 0 0 0 0
MgSO4 0.05 0.070 0.070 0 0 0 0 0 0
CaCl2 0.08 0.191 0.191 0 0 0 0 0 0
Na2EDTA 1.55 0.156 0.156 0 0.007 0 0 0 0
FeCl3 0.2 0.835 0.835 0.082 0.011 0 0 0 0
H3BO3 0.4 0.141 0.141 0.119 0.028 0 0 0 0
MnCl2 0.3 0.488 0.488 0.021 0.014 0 0 0 0
ZnCl2 0.18 1.070 1.070 0.238 0.065 0 0 0 0
CoCl2 0.8 0.490 0.490 0.595 0.033 0 0 0 0
CuSO4 1.15 1.250 1.250 0.095 1.380 0 0 0 0
Yeast extract 0.3 0 0 0 0 0 0 0 0
Soybean oil 0.615 0.059 0.059 0 0.489 0 0 0 0
Refined glycerol 0.4 0.030 0.030 0.048 0 0 0 0.993 0
Crude glycerol 0.2 0.030 0.030 0.048 0 0 0 0.993 0
Waste cooking oilc 0.2 0.098 0.098 0 0.792 0 0 0 0
  1. aAll the chemical prices were obtained from Alibaba.com (Steinbüchel and Valentin 1995), with exception of soybean oil (Van Wegen et al. 1998)
  2. bThe PEI score can be obtained from the database of WAR algorithm graphical user interface (Environmental Protection Agency, U.S.)
  3. cPEI for waste cooking oil are of palmitic acid as most of the waste cooking oil are palm oil-based