TY  - JOUR
U1  - Wissenschaftlicher Artikel
A1  - Bergrath, Jonas
A1  - Rumpf, Jessica
A1  - Burger, René
A1  - Do, Xuan Tung
A1  - Wirtz, Michaela
A1  - Schulze, Margit
T1  - Beyond Yield Optimization: The Impact of Organosolv Process Parameters on Lignin Structure
JF  - Macromolecular Materials and Engineering
N2  - When optimizing the process parameters of the acidic ethanolic organosolv process, the aim is usually to maximize the delignification and/or lignin purity. However, process parameters such as temperature, time, ethanol and catalyst concentration, respectively, can also be used to vary the structural properties of the obtained organosolv lignin, including the molecular weight and the ratio of aliphatic versus phenolic hydroxyl groups, among others. This review particularly focuses on these influencing factors and establishes a trend analysis between the variation of the process parameters and the effect on lignin structure. Especially when larger data sets are available, as for process temperature and time, correlations between the distribution of depolymerization and condensation reactions are found, which allow direct conclusions on the proportion of lignin's structural features, independent of the diversity of the biomass used. The newfound insights gained from this review can be used to tailor organosolv lignins isolated for a specific application.
KW  - acidic ethanosolv
KW  - lignin structure analysis
KW  - process parameters
KW  - depolymerization
KW  - condensation
KW  - organosolv lignin
KW  - autohydrolysis
Y1  - 2023
UN  - https://nbn-resolving.org/urn:nbn:de:hbz:1044-opus-70231
SN  - 1438-7492
SS  - 1438-7492
SN  - 1439-2054
SS  - 1439-2054
U6  - https://doi.org/10.1002/mame.202300093
DO  - https://doi.org/10.1002/mame.202300093
VL  - 308
IS  - 10
SP  - 18
S1  - 18
PB  - Wiley-VCH
CY  - Weinheim
ER  -