Assertion: lignin | /r/HasProperty | hardwood
Facets:
Source sentences:
text: The effect of phenolation on lignins (hardwood, softwood, and annual plants) and pulping methods (organosolv, kraft, soda, sulfite, and hydrolysis) have been studied (Podschun et al. 2015).
text: As was discussed in the Lignin Modification section, the biological source of lignin (hardwood, softwood, or annual plants) has an impact on the final properties of the products it is used to generate.
text: Cinnamyl alcohol groups are present in lignins (hardwood and softwood) in amounts of about 2% of the side-chains (Brunow and Lundquist 2010).