Assertion: lignin's amount | /r/HasProperty | determined by the integration of the signals
Facets:
Source sentences:
text: The total number of β-O-4 linkages shows a sharp decrease (35 and 74, respectively) and the lignin obtained with sulfuric acid shows a high amount of condensation in the aromatic region (48%), which was determined by the integration of the signals corresponding the S condensed and G condensed (Step 5.1.3).