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general/anthocyanidins

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Myrtillin

C21H21O12+, Cl− 465.38 g/mol

Myrtillin is an anthocyanin. It is the 3-glucoside of delphinidin. It can be found in all green plants, most abundantly in black beans, blackcurrant, blueberry, huckleberry, bilberry leaves and in various myrtles, roselle plants, and Centella asiatica plant. It is also present in yeast and oatmeal. The sumac fruit's pericarp owes its dark red colour to anthocyanin pigments, of which chrysanthemin, myrtillin and delphinidin have yet been identified.

The various colors, such as red, mauve, purple, violet, and blue in Hydrangea macrophylla are developed from myrtillin complexes with metal ions called metalloanthocyanins.

Metabolism

The enzyme anthocyanin 3-O-glucoside 6*-O-hydroxycinnamoyltransferase produces delphinidin 3-(6-p-coumaroyl)glucoside from myrtillin and *p''-coumaroyl-CoA in the anthocyanin biosynthesis pathway.

References

References

  1. [http://www.florahealth.com/flora/home/USA/HealthInformation/Encyclopedias/BilberryLeaf.htm Bilberry Leaf on florahealth.com] {{webarchive. link. (February 5, 2009)
  2. (May 2019). "Enzymatic acylation of blackcurrant (Ribes nigrum) anthocyanins and evaluation of lipophilic properties and antioxidant capacity of derivatives". Food Chem.
  3. [https://web.archive.org/web/20090819181412/http://www.spicesworld.net/sumac.php Sumac on spicesworld.net]
  4. (2009). "Blue flower color development by anthocyanins: from chemical structure to cell physiology". Nat. Prod. Rep..
  5. "Delphinidin 3-(6-p-coumaroyl)glucoside synthesis reaction on www.kegg.jp". Kegg.jp.
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anthocyanidins flavonoid-glucosides
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