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Pêches : activité antioxydante, variabilité due à la variété, à la maturité et à l'entreposage frigorifique.

Contenuto in sostanze ad attività antiossidante nelle pesche: variabilità indotta da cultivar, stadio di maturazione e frigoconservazione.

Auteurs : FORLANI M., BASILE B., CIRILLO C., et al.

Type d'article : Article

Résumé

This study aimed to evaluate antioxidant content in peach fruit as related to cultivar, harvest time, and fruit position along the tree canopy. Furthermore, the effect of 7-day storage at 4 °C on fruit antioxidant activity was investigated. The initial experiment compared 21 cultivars and showed a strong variability in fruit antioxidant content among the cultivars. Cold-storage caused a highly significant decrease of fruit antioxidants in most of the cultivars. The second experiment indicated that both the harvest time and fruit position along the tree canopy affected the hydrophilic antioxidant activity in fruit of 5 cultivars. Fruit antioxidants decreased during on-tree fruit ripening and rose progressively from the bottom to the top of the canopy. White-fleshed nectarines appeared to have fruit with the highest antioxidant content. Also in the second experiment, cold-stored fruit had a lower antioxidant activity than fresh fruit. Hydrophilic antioxidant activity of peach fruit was significantly related to flesh firmness and solid soluble content both in fresh and cold-stored fruit.

Détails

  • Titre original : Contenuto in sostanze ad attività antiossidante nelle pesche: variabilità indotta da cultivar, stadio di maturazione e frigoconservazione.
  • Identifiant de la fiche : 2004-2305
  • Langues : Italien
  • Source : Riv. Fruttic. Ortofloric. - vol. 65 - n. 7-8
  • Date d'édition : 2003

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