Quality and Nutraceutical Content of Blueberries (Vaccinium corymbosum) Grown at Two Different Altitudes (450 and 650 m a.s.l.)
Articolo
Data di Pubblicazione:
2009
Citazione:
Quality and Nutraceutical Content of Blueberries (Vaccinium corymbosum) Grown at Two Different Altitudes (450 and 650 m a.s.l.) / A. Spinardi, I. Mignani, L. Folini, R. Beghi. - In: ACTA HORTICULTURAE. - ISSN 0567-7572. - 810(2009), pp. 817-822. ((Intervento presentato al 9. convegno International Vaccinium Symposium tenutosi a Corvallis, Oregon nel 2008.
Abstract:
The production of blueberry in Italy has been growing in recent decades, in
response to consumer interest in fruit rich in bioactive compounds with potential
dietary anticarcinogens. The study analyzed ripening indices and antioxidant
compounds of two blueberry cultivars (‘Brigitta Blue’ and ‘Duke’) grown in
Valtellina, Northern Italy during the 2005 and 2006 growing seasons at two different
altitudes (450 and 650 m ASL). Fruits were sampled weekly in four classes from
mature green to fully ripe berries. Color, total soluble solids, firmness, total
phenolics, total anthocyanins, and ascorbic acid were evaluated in blueberries of
each ripening class. Greater altitude delayed ripening, color development, and fruit
size of ‘Duke’, and enhanced the ascorbic acid content during the ripening process,
without influencing other parameters. ‘Brigitta Blue’ attained a higher (about 20%)
sugar content and fruit size, while ‘Duke’ showed 50% more total anthocyanins and
ascorbic acid, and 25-30% more total phenolics. These traits could be attributed to
cultivar and to the earlier ripening of ‘Duke.’
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Anthocyanins; Ascorbic acid; Blueberry; Firmness; Polyphenolics; Ripening indices; Total soluble solids
Elenco autori:
A. Spinardi, I. Mignani, L. Folini, R. Beghi
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