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Pregled bibliografske jedinice broj: 140377

Časopis

Autori: Katalinić, Višnja; Miloš, Mladen; Modun, Darko; Musić, Ivana; Boban, Mladen
Naslov: Antioxidant effectiveness of selected wines in comparison with (+)-catehin
( Antioxidant effectiveness of selected wines in comparison with (+)-catehin )
Izvornik: Food Chemistry (0308-8146) 86 (2004), 4; 593-600
Vrsta rada: članak
Ključne riječi: Antioxidant activity; wine; (+)-catechin; flavonoids; ferric reducing/antioxidant power; alpha; alpha-diphenyl-beta-picrylhydrazyl; beta-carotene bleaching
( Antioxidant activity; wine; (+)-catechin; flavonoids; ferric reducing/antioxidant power; alpha; alpha-diphenyl-beta-picrylhydrazyl; beta-carotene bleaching )
Sažetak:
The antioxidant effectiveness of selected wines and pure (+)-catechine were determined using three different methods. The radical scavenging potential was investigated using alpha, alpha-diphenyl-beta-picrylhydrazyl (DPPH) radical scavenging, the reducing power was determined using ferric reducing/antioxidant power (FRAP) assay and beta-carotene bleaching (BCB) method. Six red and four white wines from different grape cultivars were analyzed. Unpaired test between FRAP, DPPH, and BCB analysis of red and white wines showed significant difference. Different reducing/antioxidant power of red and white wines was elucidated in view of their different phenolic composition. As expected, the red wines had much higher flavonoid, anthocyanin and catechin content than white wines. There was no significant difference between nonflavonoids phenols. All analyzed wines demonstrate significant antioxidant capacity with FRAP test. The average FRAP of red wines was almost 10-fold higher than the average FRAP of white wines. The reducing ability of red wines can be directly correlated with its flavonoid and catechin concentration. The relative antioxidant efficiency of pure (+)-catechin in FRAP assay was same as for ascorbate and Trolox.
Projekt / tema: 0216012, 0011003
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Kemija,Temeljne medicinske znanosti,Prehrambena tehnologija
Puni text rada: 140377.30.pdf
URL cjelovitog teksta:
Google Scholar: Antioxidant effectiveness of selected wines in comparison with (+)-catehin



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