Polyphenol composition of wine

Polifenoli su jedni od najvažnijih sastojaka vina i direktno su povezani sa bojom, trpkošću, gorčinom i antioksidacijskim karakteristikama, poznatim po pozitivnom utjecaju na zdravlje. Cilj ovog rada je bio odrediti polifenolni sastav vina sorti Teran i Cabernet Sauvignon. Uzorci za analizu su uzeti sa tržišta. Analiza polifenolnih spojeva je provedena primjenom spektrofotometrijskih metoda kojima je određen udio ukupnih fenola i udio ukupnih antocijana. Istraživanje je pokazalo da vino sorte Cabernet Sauvignon ima manji ukupni udio antocijana, a ukupni udio fenola veći od vina sorte Teran.Polyphenols are among the most important ingredients of wine and they are directly interrelated with the colour, bitterness, acerbity and antioxidative properties, known for their positive impact on the health. The purpose of this work was to determine polyphenolic composition of wine of the Teran and Cabernet Sauvignon variety. The samples for analysis were taken from the market. The analysis of polyphenols has been conducted by the use of spectrophotometryc methods to determine the content of total phenols and total anthocyans. The research has shown that the wine of Cabernet Sauvignon variety has lower content of total anthocyans, and higher content of total phenols then the wine of Teran variety