Table 1
Source of polyhydroxybutyrate (PHB) and polyhydroxybutyrate-co-valerate (PHB-HV) and the composition of the solutions used to manufacture nanofibers constructed from PHB or PHB containing 5% or 12% (w/w) commercially available PHB-HV and biofunctionalized using Arthrospira biomass. Nanofiber diameters are given as the mean ± standard deviation.
| | PHB source and sample code | Concentration of PHB and Spirulina biomass (%, w/w) | Nanofiber type and diameter (mm) |
| | Spirulina platensis | | | | SP1 | 22% PHB | Uniform, 744 ± 99 | | SP2 | 22% PHB + 2.2% NaCl | Uniform, 474 ± 80 | | SP3 | 7% PHB + 5% biomass | Uniform, 312 ± 68 | | Commercial | | | | B | 20% PHB | No nanofibers produced | | 5V1 | 20% PHB-HV5 | Uniform, 1205 ± 392 | | 5V2 | 20% PHB-HV5 + 0.2% NaCl | Uniform, 1184 ± 225 | | 5V3 | 15% PHB-HV5 + 5% biomass | Uniform, 1107 ± 279 | | 12V1 | 20% PHB-HV12 | Uniform, 1249 ± 169 | | 12V2 | 20% PHB-HV12 + 0.2% NaCl | Uniform, 975 ± 177 | | 12V3 | 15% PHB-HV12 + 5% biomass | Uniform, 835 ± 244 | | Cupriavidus necator | | | | CN | 20% PHB | No nanofibers produced | | RE | 40% PHB | No droplets |
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