Flavanol-anthocyanin adduct
Flavanol-anthocyanin adducts are formed during wine ageing through reactions between anthocyanins and tannins present in grape, with yeast metabolites such as acetaldehyde. Acetaldehyde-induced reactions yield ethyl-linked species such as malvidin glucoside-ethyl-catechin.[1][2]
This type of compound has a better color stability at pH 5.5 than normal anthocyanins. When the pH was increased from 2.2 to 5.5, the solution of the pigment became progressively more violet (λmax = 560 nm at pH 5.5), whereas similar solutions of the anthocyanin were almost colorless at pH 4.0.[3]
References
- ^ Morata, A; González, C; Suárez-Lepe, JA (2007). "Formation of vinylphenolic pyranoanthocyanins by selected yeasts fermenting red grape musts supplemented with hydroxycinnamic acids". International Journal of Food Microbiology. 116 (1): 144–52. doi:10.1016/j.ijfoodmicro.2006.12.032. PMID 17303275.
- ^ Asenstorfer, Robert E.; Lee, David F.; Jones, Graham P. (2006). "Influence of structure on the ionisation constants of anthocyanin and anthocyanin-like wine pigments". Analytica Chimica Acta. 563 (1–2): 10–14. doi:10.1016/j.aca.2005.09.040.
- ^ Escribano-Bailón, Teresa; Álvarez-García, Marta; Rivas-Gonzalo, Julian C.; Heredia, Francisco J.; Santos-Buelga, Celestino (2001). "Color and Stability of Pigments Derived from the Acetaldehyde-Mediated Condensation between Malvidin 3-O-Glucoside and (+)-Catechin". Journal of Agricultural and Food Chemistry. 49 (3): 1213–7. doi:10.1021/jf001081l. PMID 11312838.
See also
- Phenolic content in wine
- Wine color
- v
- t
- e
Anthocyanidins and their anthocyanin glucosides
- 5-Desoxy-peonidin
- Aurantinidin
- Cyanidin
- 6-Hydroxycyanidin
- Delphinidin
- Fisetinidin
- Guibourtinidin
- Pelargonidin
- Robinetinidin
- 5-Desoxy-malvidin
- Capensinidin
- Europinidin
- Hirsutidin
- Kaempferidinidin
- Malvidin
- Peonidin
- Petunidin
- Pulchellidin
- Rosinidin
(anthocyaninidin glycosides)
Glucosides:
- Callistephin (Pelargonidin 3-O-glucoside)
- Chrysanthemin (Cyanidin 3-O-glucoside)
- Myrtillin (Delphinidin 3-O-glucoside)
- Oenin (Malvidin 3-O-glucoside)
- Peonidin 3-O-glucoside
- Petunidin 3-O-glucoside
- Pulchellidin 3-glucoside
Diglucosides:
- Cyanin (Cyanidin 3,5-O-diglucoside)
- Delphin (Delphinidin 3,5-O-diglucoside)
- Malvin (Malvidin 3,5-diglucoside)
- Pelargonin (Pelargonidin 3,5-O-diglucoside)
- Peonin (Peonidin 3,5-O-diglucoside)
- Petunin (Petunidin 3,5-O-diglucoside)
Others glycosides:
- Antirrhinin (Cyanidin 3-O-rutinoside)
- Ideain (Cyanidin 3-O-galactoside)
- Delphinidin 3-O-rhamnoside
- Petunidin 3-O-arabinoside
- Petunidin 3-O-galactoside
- Petunidin 3-O-rhamnoside
- Petunidin 3-O-rutinoside
- Primulin (Malvidin 3-O-galactoside)
- Pulchellidin 3-rhamnoside
- Tulipanin (Delphinidin 3-O-rutinoside)
Acetylated anthocyanins | |
---|---|
Coumaroylated anthocyanins (cis- and trans-) |
|
Caffeoylated anthocyanins |
|
Malonylated anthocyanins |
|
Acylated anthocyanin diglycosides |
|
- Malvidin glucoside-ethyl-catechin
- Catechin(4α→8)pelargonidin 3-O-β-glucopyranoside
- Epicatechin(4α→8)pelargonidin 3-O-β-glucopyranoside
- Afzelechin(4α→8)pelargonidin 3-O-β-glucopyranoside
- Epiafzelechin(4α→8)pelargonidin 3-O-β-glucopyranoside
- Metalloanthocyanins (commelinin)
- Cyanosalvianin
- Protocyanin
- Protodelphin)
- Pyranoanthocyanins
- Copigmentation
- Anthocyanone A (degradation product of oenin)
- Malvone (oxidation product of malvin)
This article about an aromatic compound is a stub. You can help Wikipedia by expanding it. |
- v
- t
- e