In the original published version of this article, errors were introduced in Table 3, which caused the columns to be shifted over one space. Also, an incorrect reference "this work" was added to the last column. To correct these issues Table 3 has been replaced with a corrected version in the published manuscript. In addition, the corrected version of Table 3 can be found below. The publisher apologizes for the errors. Both the HTML and PDF versions of the article have been updated to correct the errors.
| This work | Ref. [64] | Ref. [66] | Ref. [65] | Ref. [67] | ||||
|---|---|---|---|---|---|---|---|---|
| Bacterial strain | Cupriavidus necator | Cupriavidus necator | Cyanobacteria | Bacillus cereus | Cupriavidus necator | Bacillus megaterium | Standard PHB | |
| ATCC 17697 | DSM 545 | spp. | SPV | MTCC 8320 | MTCC 453 | |||
| Carbon source | fructose | glucose | glucose | glucose | fructose | fructose | ||
| Extraction method | solvent |
solvent |
solvent |
solvent |
solvent and ultrasonication |
solvent and ultrasonication |
||
| DSC analysis | ||||||||
| Tg (°C) | 3.5 | 6 | 6 | 2 | 6 | 6 | – 8 | |
| Tm (°C) | 165.4 | 180 | 171 | 169.7 | 175 | 176 | 176 | |
| Tc (°C) | 54.3 | - | 78.8 | - | 84 | 104 | 90 | |
| Xc (%) | 56.0 |
64.6 |
56.8 |
57.7 |
44 |
23 |
- |
|
| NMR spectra (chemical shift in ppm) | ||||||||
| 13C NMR spectrum | -CH3 | 19.9 | - | - | 21.2 | 19.95 | 19.95 | 19.95 |
| -CH2- | 40.1 | - | - | 42.7 | 40.99 31.09 | 40.99 31.09 | 40.99 31.09 | |
| -CH- | 67.7 | - | - | 68.5 | 67.81 | 67.80 | 67.81 | |
| -CO- | 169.3 | - | - | 169.7 | 169.32 | 169.32 | 169.32 | |
| 1H NMR spectrum | -CH- (m) | 5.26 | - | 5.22–5.28 | - | 5.26 | 5.26 | 5.26 |
| -CH2- (dq) | 2.45–2.63 | - | 2.43–2.64 | - | 2.17–2.60 | 2.17–2.62 | 2.17–2.60 | |
| -CH3 (d) | 1.27 | - | 1.27–1.29 | - | 1.28–1.60 | 1.26 | 1.28 | |
m: multiplet, dq:double quadruplet, d: doublet.