Table 9.
Media cost comparison between previously improved media [35] vs. low cost optimized media.
| Previously improved media |
Low cost optimized media |
||||
|---|---|---|---|---|---|
| Reference |
[35] |
Reference |
Present study |
||
| Component | (g L−1) o L | Cost/L (USD) | Component | (g L−1) o L | Cost/L (USD) |
| Glucose (Merck) | 10 | $ 0.640 | Glucose USP (ChemiPharma) | 20 | $ 0.037 |
| Peptone (Oxoid) | 20 | $ 6.740 | Isolated soy protein (Ciacomeq SAS) | 50 | $ 0.200 |
| Yeast extract (Oxoid) | 15 | $ 1.485 | Malt extract (Proquímicas JG SAS) | 10.28 | $ 0.063 |
| CuSO4 (Scharlau) | 0.16 | $ 0.077 | CuSO4 (Scharlau) | 0.16 | $ 0.077 |
| (NH4)2SO4 (Merck) | 2.6 | $ 0.240 | (NH4)2SO4 (Merck) | 4.91 | $ 0.389 |
| Chloramphenicol (SIGMA) | 0.1 | $ 0.184 | Chloramphenicol (SIGMA) | 0.1 | $ 0.184 |
| H2O for dilution∗ | 1 | $ 0.001 | H2O for dilution∗ | 1 | $ 0.001 |
| Total | $ 9.367 | Total | $ 0.951 | ||
| 10 % contingencies | $ 0.937 | 10 % contingencies | $ 0.095 | ||
| 19 % sales tax | $ 1.780 | 19 % sales tax | $ 0.181 | ||
| Grand total | $ 12,084 | Grand total | $ 1.227 | ||
| U L−1 (168 h, 0.15 L) | 1,373.72 ± 0.37 | U L−1 (168 h, 0.15 L) | 12,877.31 ± 481.23 | ||
∗
The cost of water for dissolving was obtained from the value of m3 of water established by the Waterworks Company for the industrial zone in Bogotá D.C., Colombia, July of 2018 [43].