SyringylVerhältnis
SyringylVerhältnis, often abbreviated as S/V ratio, is a term used in lignin chemistry to describe the relative abundance of syringyl (S) units compared to guaiacyl (G) units within a lignin polymer. Lignin is a complex, heterogeneous polymer found in the cell walls of plants, particularly in woody tissues. It is primarily composed of three phenylpropanoid monomers: sinapyl alcohol (which forms syringyl units), coniferyl alcohol (which forms guaiacyl units), and p-coumaryl alcohol. The S/V ratio is a key parameter for characterizing different types of biomass.
Hardwoods, such as oak and maple, typically exhibit higher S/V ratios, meaning they contain a greater proportion
The S/V ratio has significant implications for the properties and applications of lignin. Lignin with a high