“…However, compared to other processes, DES provides a lignin with a lower structure than OH-phenolic and aliphatic, which can have a direct impact on applications despite the high yield and quality of the lignin obtained, as these structures are ideal for the production of new materials. 41,64,66 The influence of similar process parameters can be observed for lignin, which is extracted from beech wood fibers in two different ways using organosolv processes by Sheridan et al 44 In both processes, an ethanol solution is used as the basic solvent for delignification. However, the higher temperature and higher-pressure process yielded a lower M w and less polydisperse lignin, which also preserves the SGH structure of the lignin more efficiently.…”