Naslov
Total phenolic content and total antioxidant activity of Armenian and Croatian local red wines

Autori
Margaryan, Kristine ; Aroutiounian, Rouben ; Jukić, Vladimir ; Kujundžić, Toni ; Drenjančević ; Mato

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts, 52nd Croatian & 12th International Symposium on Agriculture / Sonja Vila ; Zvonko Antunović - Dubrovnik : Poljoprivredni fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2017, 248-249

Skup
52nd Croatian & 12th International Symposium on Agriculture

Mjesto i datum
Dubrovnik, Hrvatska, 12.02.2017. - 17.02.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
crno vino ; fenolni spojevi ; antioksidativna aktivnost ; Armenija ; Hrvatska
(red wine ; total phenolic content ; antioxidant activity ; Armenia ; Croatia)

Sažetak
The phenolic compounds of red wines are substances which play an crucial role in several sensory properties such as colour, flavour, astringency and hardness. They manifest a wide range of beneficial effects including anti-carcinogenic, anti-inflammatory and antiviral activities. These protective effects derived from the consumption of wines have been attributed to the antioxidant character of phenolics. Polyphenolic composition in wine depends on grape variety, climatic conditions, viticulture practice and vinification techniques. The main objective of the presented study was comparative analysis of wines from Armenian and Croatian local grape cultivars in order to determine their total phenolic content and total antioxidant activity. Total antioxidant activity was determined by 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay and 2, 2'- azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS∙+) radical cation decolourisation. They were correlated and exhibited a strong correlation (p < 0.01) with the total phenolic content determined by Folin-Ciocalteu’s reagent using gallic acid as a standard. The obtained results have confirmed a variation in the phenolic content amongst Armenian and Croatian red wines and also amongst wines made from grapes of different geographical origin. This preliminary study contributes new knowledge of the composition of the wines of different grapes and origin. Further studies are necessary to confirm the observed differences.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA