Assertion: crude lignin | /r/HasProperty | rvet
Facets:
Source sentences:
text: The crude lignin separated by rotary vacuum evaporation treatment (RVET) could be justified as p-hydroxyphenyl-syringyl-guaiacyl (HSG) lignin with conjugated carbonyl functional groups also found in it, while the crude lignin separated by acidification treatment (AT) was mainly composed of S lignin that had β-1, β-5, β-O-4, and β-β bonds.