Naslov
Polyphenolic composition and antioxidant capacity of Croatian wild fruits

Autori
Dragović-Uzelac, Verica ; Bursać Kovačević Danijela ; Pedisić Sandra ; Levaj, Branka ; Elez Garofulić, Ivona ; Zorić, Zoran ; Repajić, Maja

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

Izvornik
Book of Abstract, 7th Central European Congress on Food/Food Chain Integration / Kakurinov, Vladimir - Skopje : Consulting and Training Center KEY, 2014, 94-94

ISBN
978-608-4565-05-5

Skup
7th Central European Congress on Food

Mjesto i datum
Ohrid, Sjeverna Makedonija, 21.05.2014. - 24.05.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cornelian cherry; blackthorn; elderberry; polyphenols; antioxidant capacity

Sažetak
The aim of this study was to evaluate the polyphenolic content and antioxidant capacity of three wild fruits, cornelian cherry (Cornus mass L.), blackthorn (Prunus spinosa L) and elderberry (Sambucus nigra L) grown at different regions in Croatia. The polyphenolic content was evaluated by high performance liquid chromatography and antioxidant capacity was measured using 2, 2-diphenylpicrylhydrazyl methods. Among the studied fruits cornelian cherries and especially elderberries showed to be the most important sources of anthocyanins (750.45-1118.82 and 5012.07-7113.24 mg/kg fresh weight (fw), respectively), whereas the lowest anthocyanin content was found in the blackthorn fruit. Obtained results indicated that cyanidin-3-sambubioside (approximately 88 %) has the highest contribution to the anthocyanin content in elderberries and pelargonidin-3-galactoside (approximately 65 %) in cornelian cherries. In elderberries, flavonols quercetin-3-glucoside (136.54 mg/kg fw) and quercetin-3-xyloside (98.17-129.26 mg/kg fw) were found in remarkable quantities, while regarding phenolic acids, ferulic (67.05-88.45 mg/kg) and gallic acid (68.20-80.08 mg/kg fw) were determined in appreciably amounts. In blackthorn, neochlorogenic acid (420.5-735 mg/kg fw), flavan-3-ols (312.08-645 mg/kg fw) and quercetin-3-rutinoside (89.54-168.11 mg/kg fw) were the predominant components. The most abundant phenolic acid in cornelian cherry is vanillic acid (111.20-182.32 mg/kg fw), whereas in elderberry the phenolic acids are not present in remarkable content (total amount of neochlorogenic, caffeic, p-coumaric, ferulic and gallic acid is 272.30 mg/kg f.w.). The results showed significant antioxidant capacity and linear correlation was observed between the antioxidant capacity, anthocyanins and especially flavonols concentrations for all researched fruit. Growing area significantly affected the anthocyanins and flavonol concentration (p≤0.05), whereas the significant influence on phenolic acid concentrations was not found. The results of this study indicated that cornelian cherry, elderberry and blackthorn are good sources of natural antioxidants (bioactive polyphenols) which might exert beneficial health effects.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA