Phenolic characterization and antioxidant activity of Rhine Riesling wine from Croatia, subregion Zagorje (CROSBI ID 510267)
Prilog sa skupa u zborniku | ostalo | međunarodna recenzija
Podaci o odgovornosti
Komes, Draženka ; Lovrić, Tomislav ; Kovačević Ganić, Karin ; Dragović-Uzelac, Verica ; Gracin, Leo ; Banović, Mara
engleski
Phenolic characterization and antioxidant activity of Rhine Riesling wine from Croatia, subregion Zagorje
Rhine Riesling wine is one of the most abundant white wines in the continental region of Croatia, especially subregion Zagorje. The phenolic composition of Rhine Riesling wine including hydroxybenzoic acids, hydroxycinnamic acids and flavan-3-ols was identified and quantified by using a reverse-phase high-performance liquid chromatography (HPLC) system coupled with diode array detection. In this white wine caffeic and vanilic acid were the predominant phenolic acids. Flavan-3-ols were presented at low content. The total phenolic content, determined according to the Folin-Ciocalteu method, varied from 342.8 to 473.8 mg/L, expressed as galic acid equivalents (GAE). The antioxidant activity of wine was measured by β -carotene bleaching (BCB) and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging methods. A good correlation was found to exist between the total polyphenol content of wine and their antioxidant activity measured by the DPPH (r= 0.9268) and by the β -carotene bleaching (r= 0.9292) methods, as well as between the results of both used methods (r= 0.9591). The obtained results indicate that Rhine Riesling wine appear to be an important source of dietary polyphenolic antioxidant, which might provide additional protective role in human health.
antioxidant activity; HPLC; Rhine Riesling; polyphenols
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
2005.
objavljeno
Podaci o matičnoj publikaciji
INTRADFOOD-Innovations in Traditional Foods - book of proceedings
Valencia:
Podaci o skupu
INTRADFOOD-Innovations in Traditional Foods
poster
25.10.2005-29.10.2005
Valencia, Španjolska