caffeic acid chemical compound

Charaux, Charles

• caffeic acid can be extracted from plants 1900
  assertsneutralsource: coffee-pg28500

  Extraction de l'acide cafeique

  judge verdicts (2)

  • groundedness 1.00 pass — The claim is directly stated in the passage. The first bibliographic entry by Charaux from 1900 explicitly mentions 'Extraction de l'acide cafeique' (Extraction of caffeic acid), confirming that caffeic acid can be extracted from plants as part of his research on the subject.
  • qualifier_fidelity 0.90 pass — The claim is highly faithful to the passage. The viewpoint (Charaux, Charles), stance (asserts), sentiment (neutral), and time (1900) are all accurate. The quote 'Extraction de l'acide cafeique' appears verbatim in the passage title. The only minor issue is that the context field is empty when it could more precisely specify 'the plant' sense of coffee/plants, though this is not strictly required since the passage itself does not explicitly restrict the context to a particular sense beyond the general subject matter. All major qualifiers are faithful.