kermesic acid
Morocco
9th Century
Source: Oubelkacem, Y., Lamhasni, T., El Bakkali, A., et al. (2020). Parchments and coloring materials in two IXth century manuscripts: On-site non-invasive multi-techniques investigation. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 246, 119093.
Recipe Details
Ingredients
Kermes female insects
Preparation Steps
The dark pink color is an organic dye based on kermesic acid extracted from Kermes female insects. Identification was made via FORS (reflectance minima at 530 and 570 nm) and ATR-FTIR, which ruled out carminic acid due to the absence of sugar substituent vibrations in the 1000-1150 cm-1 region (p. 10-11).
Original Recipe Text
The dark pink color is an organic dye based on kermesic acid extracted from Kermes female insects. Identification was made via FORS (reflectance minima at 530 and 570 nm) and ATR-FTIR, which ruled out carminic acid due to the absence of sugar substituent vibrations in the 1000-1150 cm-1 region (p. 10-11).
Evidence
"The dye is very likely the kermesic acid, extracted from kermes female insects."
Remarks
Noticed only on some sheets of MEK-MS-6LP (p. 10). This pigment is one of the oldest organic dyes, used since antiquity in Egypt and Greece (p. 11).
Scientific Analysis
Chemical Compositionanthraquinone derivative
Analytical Techniques
FOR
FTIR
Certainty Level
Confirmed
Instrumentally Verified
Verified
Metadata
Material Type
pigment
Paper TypeParchment
ColorPink
RegionMorocco
Approx. Year850
Source Information
AuthorOubelkacem, Y., Lamhasni, T., El Bakkali, A., et al.
CollectionMakhtout 231, MEK-MS-6LP
Language
N/A
AI Suggestions
Find similar recipes based on ingredients and preparation methods.