Table 6.
Comparison of fatty acid compositions from different microbes and substrates
| Microbe | Substrate | C14:0 | C16:0 | C16:1 | C18:0 | C18:1 | C18:2 | C18:3 | CN | References |
|---|---|---|---|---|---|---|---|---|---|---|
| M. buryatense 5GB1 | CH4 | 7.1 ± 0.3 | 16.9 ± 0.5 | 73.5 ± 0.9 | tr | tr | nd | nd | 75.1 | This work |
| M. buryatense AP18 | CH4 | 4.9 ± 0.2 | 16.8 ± 0.7 | 75.5 ± 0.6 | tr | tr | nd | nd | 75.2 | This work |
| C. vulgaris (microalga) | CO2 | nd | 24.0 | 2.1 | 1.3 | 24.8 | 47.8 | nd | 51.9 | [45] |
| S. obtusiusculus (microalga) | CO2 | nd | 30.2 | 7.3 | nd | 45.7 | nd | 12.6 | 59.5 | [46] |
| Synechocystis sp. (cyanobacterium) | CO2 | nd | 52.0 | 4.0 | nd | 4.0 | 14.0 | 25.0 | 55.2 | [47] |
| R. toruloides (yeast) | Glucose | 1.3 | 25.1 | nd | 10.4 | 46.4 | 10.8 | 3.4 | 57.7 | [48] |
nd not detected, tr less than 1%, CN the cetane number was calculated as described by Bamgboye and Hansen [43]
CN = 61.1 + 0.088X2 + 0.133X3 + 0.152X4 − 0.101X5 − 0.039X6 − 0.243X7 − 0.395X8, where X2 to X8 indicate the weight percentages of methyl esters, as follows: C14:0, C16:0, C16:1, C18:0, C18:1, C18:2, C18:3, respectively