Naslov
Antioxidant activity, flavonols and phenolic acids of various fruits

Autori
Jakobek, Lidija ; Šeruga, Marijan ; Medvidović-Kosanović, MArtina ; Novak, Ivana ;

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Zbornik radova 42. hrvatskog i 2. međunarodnog simpozija agronoma / Pospišil, Milan - Zagreb : Kuliš, 2007, 633-637

ISBN
978-953-6135-57-8

Skup
42. Hrvatski i 2. Međunarodni Simpozij Agronoma

Mjesto i datum
Opatija, Hrvatska, 13.02.2007. - 16.02.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Anthocyanins; Berry Fruits; Flavonols; Phenolic Acids

Sažetak
Total polyphenols (TP), total anthocyanins (TA) and antioxidant activity of various fruits (black currant, red currant, sour cherry, elderberry, and blueberry) were determined by using Folin-Ciocalteau, pH-differential and DPPH method. In order to identify individual non-anthocyanic phenolic compounds [flavonols (quercetin, myricetin, kaempferol), phenolic acids (p-coumaric, caffeic, ferulic, p-hydroxybenzoic and ellagic acid)] present in chosen fruits, HPLC method was applied. The highest amounts of TP and TA, and the strongest antioxidant activities were found in blueberry, elderberry and black currant. The major non-anthocyanic phenolic component in elderberry and blueberry was quercetin. In black currant, myricetin was the most abundant phenolic compound. P-hydroxybenzoic acid was the main phenolic compound of red currant, whereas p-coumaric and caffeic acid were the most abundant phenolic compounds of sour cherry.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

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