Study of polyphenols, antioxidant capacity and minerals for the valorisation of ancient apple cultivars from Northeast Italy
Autor: | Raffaella Preti, A. M. Tarola |
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Rok vydání: | 2020 |
Předmět: |
030309 nutrition & dietetics
Biology Secondary metabolite Biochemistry Industrial and Manufacturing Engineering 03 medical and health sciences 0404 agricultural biotechnology Nutraceutical Flavonols Functional food Polyphenols · Minerals · Ancient cultivars · Antioxidant capacity · Apple · Principal component analysis medicine Cultivar Hybrid chemistry.chemical_classification 0303 health sciences 04 agricultural and veterinary sciences General Chemistry 040401 food science Horticulture chemistry Polyphenol Valorisation Food Science Biotechnology medicine.drug |
Zdroj: | European Food Research and Technology. 247:273-283 |
ISSN: | 1438-2385 1438-2377 |
Popis: | Nutritional properties and quality of apple fruits can be related to presence of secondary metabolite contents such as phytochemicals and mineral elements. In this paper, eight polyphenols, four major minerals (Na, K, Mg, Ca), total phenolic content and antioxidant capacity were determined in fourteen ancient apple cultivars grown in Friuli Venezia Giulia (Northeast Italy) to highlight their nutraceutical properties. Both apple peel and pulp were examined separately and results were compared to those of six widespread commercial cultivars using principal component analysis. Ancient apples had much higher content in healthful compounds with respect to commercial varieties, particularly in the peel. Ancient cultivars showed a superior antioxidant capacity in peel (3- to 9- fold) and in pulp (2- to 5-fold) compared to commercial cultivars, with a good correlation with total phenolic content (R = 0.83 in peel and 0.69 in pulp). The polyphenols that mostly characterized the ancient apples pulp were catechins and flavonols. Regarding macro elements, K and Mg content were higher in ancient cultivars, while Na and Ca showed no significant differences. In the perspective of a sustainable economic and social development of local agricultural realities, these results contribute to the valorisation of ancient local apple cultivars as invaluable reservoir of genetic biodiversity to be promoted as functional food or exploited in breeding novel apple hybrids with high nutraceutical properties and better resistance to parasites. |
Databáze: | OpenAIRE |
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