tailieunhanh - Fatty acid composition, oxidative stability, and antioxidant properties of some Hungarian and other Persian walnut cultivars

Ten different Persian walnut cultivars were examined for their compositional data, including eight Hungarian and two introduced varieties. Oil content and fatty acid composition were determined as well as oxidative stability (indicated by induction time). | Turkish Journal of Agriculture and Forestry Research Article Turk J Agric For (2016) 40: 160-168 © TÜBİTAK doi: Fatty acid composition, oxidative stability, and antioxidant properties of some Hungarian and other Persian walnut cultivars 1,2,* 3 3 3 Géza BUJDOSÓ , Éva KÓNYA , Mária BERKI , Magdolna NAGY-GASZTONYI , 2 2 2 3 Krisztina BARTHA-SZÜGYI , Balázs MARTON , Ferenc IZSÉPI , Nóra ADÁNYI 1 Department of Pomology, Corvinus University of Budapest, Budapest, Hungary 2 National Agricultural Research and Innovation Centre Fruitculture Research Institute, Budapest Hungary 3 National Agricultural Research and Innovation Centre Food Research Institute, Budapest, Hungary Received: Accepted/Published Online: Final Version: Abstract: Ten different Persian walnut cultivars were examined for their compositional data, including eight Hungarian and two introduced varieties. Oil content and fatty acid composition were determined, as well as oxidative stability (indicated by induction time). Antioxidative capacity, total polyphenol measurements, and individual phenolic compounds were also determined. Not only dry samples but fresh and stored samples were included in this study. Large differences were found among the varieties within these parameters, for example in oxidative stability, which contributes to antioxidative capacity. In conclusion, the nutritional value of Hungarian walnut cultivars was the same or even higher than those of foreign ones. Key words: Antioxidant properties, fatty acid composition, antioxidant, walnut varieties 1. Introduction The Persian walnut (Juglans regia L.) is the most important shell fruit species in the Carpathian Basin. There are a lot of sites where this fruit species can be safely grown because this species might be native to this region (Terpó, 1976). Based on orchard data collection from 2001, there were 3200 ha of nonbearing and .