Podcasts

A 1000-year-old mystery solved: Unlocking the molecular structure for the medieval blue from Chrozophora tinctoria, also known as folium

A 1000-year-old mystery solved: Unlocking the molecular structure for the medieval blue from Chrozophora tinctoria, also known as folium


We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.

A 1000-year-old mystery solved: Unlocking the molecular structure for the medieval blue from Chrozophora tinctoria, also known as folium

By P. Nabais, J. Oliveira, F. Pina1 et al.

Science Advances, Vol. 6:16 (2020)

Abstract: The molecular structure of the medieval watercolor known as folium has finally been solved in the 21st century. The interdisciplinary approach taken was the key to producing extracts that had been prepared following medieval instructions, and shows the blue/purple chromophore as the major dye in Chrozophora tinctoria fruits (shell). A multi-analytical characterization of its structure was made using HPLC-DAD-MS, GC-MS, NMR, and computational studies. The results demonstrate that the blue compound corresponds to 6′-hydroxy-4,4′-dimethoxy-1,1′-dimethyl-5′-{[3,4,5-trihydroxy-6-(hydroxymethyl) tetrahydro-2H-pyran-2-yl]oxy} – [3,3′-bipyridine] -2,2′,5,6(1H,1′H)-tetraone, a hermidin derivative, which we named chrozophoridin.

Experimental data and computational modeling studies show that this mono-glycosylated dimer is represented by two stable isomers (atropisomers). This is an indispensable piece of knowledge for the characterization of this medieval dye in works of art such as medieval manuscript illuminations and for testing its stability and contributes to the preservation of our cultural heritage.

Top Image: Chrozophora tinctoria – photo by Solanum / Wikimedia Commons


Watch the video: Chrozophora rottleri plant. सरयवरत क पध. suryavrti plant (June 2022).


Comments:

  1. Dane

    This excellent idea, by the way, just falls

  2. Jenny-Lee

    In my opinion, you are wrong. I can defend my position. Email me at PM.

  3. Gujas

    I apologize, but in my opinion you admit the mistake. I can defend my position. Write to me in PM, we will discuss.

  4. Staunton

    I consider, that you are not right. I can defend the position. Write to me in PM, we will discuss.

  5. Brooke

    This situation is familiar to me. I invite to discussion.

  6. Bakinos

    I express my appreciation for the assistance in this matter.

  7. Nuru

    I confirm. All above told the truth. Let's discuss this question. Here or in PM.



Write a message