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Nectarines : une atmosphère modifiée à forte teneur en CO2 peut se révéler efficace dans la prévention de l'apparition d'une texture cotonneuse.

High CO2 modified atmosphere can be effective in preventing woolliness in nectarines.

Auteurs : RETAMALES J., CAMPOS R., HERRERA P., et al.

Résumé

Physiological disorders, mainly woolliness, are the most limiting factors in prolonged storage of many cultivars of peaches and nectarines grown in Chile. Based on the authors' work, in which CA with high CO2 content gave control of woolliness, experiments were set up aiming at obtaining similar conditions through MAP. Trials were performed using modified atmosphere obtained through use of sealed plastic bags. In the 1995-96 season, Fantasia and Flamekist nectarines were packed using different film with or without injection of CO2 at different concentrations (with nitrogen as balance gas) to replace partially the air inside. In the 1996-97 season, July Red, Flamekist and August Red nectarines together with Calred peach were packed using two low permeability films with or without injections (with oxygen as balance gas). Fruit was cold-stored for 20 or 30 days and kept afterwards for 5 days at room temperature for ripening (shelf life). After each period, fruit was evaluated for firmness and physiological disorders. In the 1995-96 season, good control of woolliness was obtained in both nectarine cultivars only in the treatments where high CO2 concentrations (above 10%) were reached. In 1996-97, a reduction of woolliness incidence was obtained in nectarines through MAP, but no control was apparent in Calred peach. In general, high CO2 treatments resulted in less pronounced softening after cold storage.

Détails

  • Titre original : High CO2 modified atmosphere can be effective in preventing woolliness in nectarines.
  • Identifiant de la fiche : 2001-0297
  • Langues : Anglais
  • Source : CA '97. Proceedings of the 7th international controlled atmosphere research conference.
  • Date d'édition : 13/07/1997
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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