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Comparative polyphenolic antioxidant profile and quality of traditional apple cultivars as affected by cold storage
Author(s) -
Goulas Vlasios,
Kourdoulas Panayiotis,
Makris Fedon,
Theodorou Maria,
Fellman John K.,
Manganaris George A.
Publication year - 2014
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.12507
Subject(s) - cultivar , flavonols , polyphenol , postharvest , nutraceutical , cold storage , horticulture , ripening , antioxidant capacity , antioxidant , phytochemical , chemistry , composition (language) , food science , botany , biology , biochemistry , linguistics , philosophy
Summary ‘ K athista’ and ‘ L ortiko’ are regarded as traditional and highly appreciated apple cultivars in C yprus, yet their postharvest behaviour and phytochemical content are largely unknown. Such fruits were examined for their qualitative traits, phenolic composition and antioxidant capacity after harvest or short, intermediate or extended cold storage and additional ripening at room temperature ( RT ), using ‘Gala’ as reference cultivar. Total phenolic content was dependent on cultivar and length of cold storage, while hydroxycinnamic acids were always at higher levels compared to total flavonols for all the examined cultivars. No clear trends regarding the influence of cold storage or RT maintenance on fruit antioxidant properties were evident. Overall, quality attributes and polyphenolic content of the traditional apple cultivars were comparable with ‘Gala’ at harvest; thus, they can be considered a good source of nutraceuticals as summer apple cultivars. However, extended cold storage deteriorates fruit behaviour and antioxidant capacity, particularly in ‘Lortiko’ fruit.