An Unflattened Identity and Change Knowledge Graph

tannic acid chemical_compound

concept · 4 mentions

A polyphenolic compound found in some plants, including coffee.

Other senses of “tannic acid”

Defining properties

generation_process roasting vs raw bean
is not a chlorogenic acid

Perspectives

Claims grouped by the voice that makes them.

K. Gorter

chlorogenic acid is not a tannic acid
assertsneutralsource: coffee-pg28500
chlorogenic acid (C_32_H_38_O_19), which is not a tannic acid
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage. The text explicitly quotes that chlorogenic acid "is not a tannic acid" as part of K. Gorter's argument that the name "caffetannic acid" is a misnomer.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to K. Gorter, who made the investigation and the claim about caffetannic acid being a misnomer. The stance 'asserts' accurately reflects how the passage frames Gorter's position ('His claim is that...'). The sentiment is neutral, appropriately matching the factual nature of the chemical statement. The time qualifiers are null, which is correct since the passage provides no specific temporal information. The context is appropriately empty as the passage does not restrict the claim to a particular sense or role. The quote is verbatim from the passage and directly supports the claim that chlorogenic acid is not a tannic acid.

P. L. Simmonds (author)

tannic acid generation_process roasting vs raw bean
assertsneutralsource: pg57340
The tannic acid is, by some chemists, also said to be generated only in the process of roasting; others maintain that it is present in the raw bean.
judge verdicts (2)
- groundedness 0.70 pass — The claim is directly supported by the passage, which states that some chemists believe tannic acid is generated only during roasting, while others argue it exists in the raw bean.
- qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage: - Viewpoint: correctly attributes the statement to "author". - Stance: accurately reflects the passage's presentation of differing opinions as an assertion. - Sentiment: neutral, matching the factual reporting in the text. - Time: no temporal qualifier needed; the passage gives none, so it is appropriately null. - Context: correctly captures the debate about tannic acid's origin (roasting vs raw bean). - Quote: verbatim from the passage, supporting the claim.