Malvidin 3-glucoside

Gomez-Miguez, M. et al., Influence of different phenolic copigments on the color of malvidin 3-glucoside, J. Agric. Food Chem., 54, 5422, 2006. 

The degradation kinetics of malvidin 3-glucoside in ethanolic solutions under conditions simulating wine accelerated with the increase of ethanol concentration, probably because the extent of anthocyanin self-association decreased with elevated ethanol concentration. ... 

The color of malvidin 3-glucoside in aqueous solution can be stabilized by selfassociation or copigmentation with the di-chalcone form, according to the pH of the solution. ... 

The effects of catechin, epicatechin, procyanidin B2, caffeic acid, / -coumaric acid, myricetrin, and quercetrin on the color intensity and stability of malvidin 3-glucoside at a molar ratio of 1 1 under conditions similar to red wine were evaluated. " Flavan 3-ols appeared to have the lowest protective effects and flavonols the highest strong color changes were visually perceptible. " In the complexation of malvin chloride and natural polyphenols, flavonol glycosides by far exerted the best protector effect. ... 

In the intermolecular reactions between anthocyaifins and flavonoids mediated by acetaldehyde, new compounds linked by an ethyl bridge are formed. Three new compounds were detected by the reaction of malvidin 3-glucoside and proanthocy-... 

Houbiers, C. et al.. Color stabilization of malvidin 3-glucoside self-aggregation on the of flavylium cation and copigmentation with the Z-chalcone form, J. Phys. Chem. B, 102, 3578, 1998. 

Pissarra, J. et al.. Reaction between malvidin 3-glucoside and (-t-)-catechin in model solutions containing different aldehydes, J. Food Sci., 68, 476, 2003. 

Degenhardt, A., Knapp, H., and Winterhalter, P., Rapid isolation of malvidin 3-glucoside from red wine by high speed counter-current chromatography (HSCCC), Vitis, 39, 43, 2000. 

Direct condensation product between catechin and malvidin-3-glucoside... 

The synthesis of two new red wine pigments by nucleophilic addition of vinylphenols to malvidin 3-glucoside has been described. The structures of the two new pigments and their formation are shown in Fig. 2.105. HPLC-DAD and HPLCMS confirmed the occurrence of these two anthocyanin derivatives in red wine [239],... 

As nowadays wine making has factory dimensions, the need for a rapid method is important, so a flow injection techniqne for liqnid-solid extraction coupled to an HPLC was developed [368]. The target analytes were extracted from wine in a continuous way by means of a minicolumn packed with C18, the elntion was carried ont by means of acid water (pH 2) and acetonirile, then the solvent was evaporated by nitrogen stream on-line to a HPLC injector. Malvidin-3-glucoside, cyaniding-3-glncosyde, and peonidin-3-glncoside antocyanins were determined in a more rapid, accurate, and sensitive way than with the traditional methods. 

Catechin(-furfurylmethine)-malvidin 3-glucoside Model solution 859 ([M+ - 2H+] ) 280, 450, 545 HPLC-DAD-ESI-MS 214... 

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