Figure 6
2D-HSQC-NMR spectra of extracted lignin from pretreatment of OPEFB at 120 °C, with the sidechain and aromatic regions for different pretreatment periods: 0.5 h (a), 1 h (b), and 2 h (c).
Figure 6 | Scientific Reports
2D-HSQC-NMR spectra of extracted lignin from pretreatment of OPEFB at 120 °C, with the sidechain and aromatic regions for different pretreatment periods: 0.5 h (a), 1 h (b), and 2 h (c).
