Table 2 Values of crystallinity index (CrI), hemicellulose percentage (%HC), lateral fibril dimensions (LFD) and lateral fibril aggregate dimensions (LFAD) and accessible/total fibril surface ratio (AS/(AS + IAS)), calculated from the C4-region deconvolution of the solid-state 13C CP/MAS NMR spectra from the starting bleached birchwood Kraft fibers (KF), PaLPMO9E-treated bleached birchwood Kraft fibers (KF-LPMO), Ultra Turrax dispersed PaLPMO9E-treated fibers (NFC0) and PaLPMO9E-treated fibers submitted to mechanical shearing (NFC1–3)
From: Lytic polysaccharide monooxygenases (LPMOs) facilitate cellulose nanofibrils production
Sample | CrI (%) | HC (%) | LFDa (nm) | LFADa (nm) | AS/ (AS + IAS) |
|---|---|---|---|---|---|
KF | 50.28 ± 2.99 | 22.42 ± 2.39 | 2.27 ± 0.13 | 19.05 ± 4.43 | 24.18 ± 4.38 |
KF-LPMO | 49.94 ± 1.54 | 18.97 ± 2.23 | 2.20 ± 0.07 | 18.00 ± 2.18 | 24.86 ± 2.29 |
NFC0 | 51.13 ± 0.93 | 19.12 ± 0.52 | 2.23 ± 0.93 | 15.14 ± 0.42 | 29.67 ± 0.42 |
NFC1 | 53.71 ± 0.02 | 19.82 ± 1.35 | 2.12 ± 0.06 | 14.69 ± 2.39 | 32.77 ± 2.39 |
NFC2 | 47.88 ± 0.02 | 18.85 ± 2.34 | 2.39 ± 0.12 | 11.29 ± 0.40 | 36.73 ± 0.40 |
NFC3 | 47.65 ± 0.80 | 20.19 ± 1.17 | 2.39 ± 0.03 | 9.33 ± 0.43 | 43.86 ± 0.43 |