Anthocian profile of red wines from new grape variety Codrinsky

Abstract

Codrinsky is a grape variety approved and recommended for the production of high-quality red dry wines in the Republic of Moldova [1]. Analysis Method OIV-MA-AS315-11. Separation was carried out on HPLC system with UV/VIS detector on C18 column. Content of monomeric anthocyanins was determined using malvidol-3-glucoside chloride as internal standard. 34 samples of red dry wine produced in

Republic of Moldova.

The main anthocyanins in red wines are delphinidol, cyanidol, petunidol, peonidol and malvidol with a total amount of 340-380 mg/md3. They exist as monoglucosides esters (main compounds, around 78% from total amount) and as monoglucosides with acetyl and coumaroyl

groups (22% from total amount). The main compounds present in red wines from Codrinsky grape variety are Malvidol-3-glucoside (59% from total), Malvidol-3-acetylglucoside (12 from total), Petunidol -3-glucoside (9% from total), Delphinidol-3-glucoside (7% from total) and Malvidol-3-coumaryl glucoside (6% from total) which represent 93% from total antocyaninins amount. The anthocyanin profile of dry red wines from new grape variety Codrinsky was stable and almost the same in all analyzed samples, which can be considered as a marker for their identification. Malvidol derivatives present in high amount imparts color stability during production. New grape variety Codrinsky can be of high interest for the production of high quality dry red wines.