Utilisation de l'irradiation gamma et du dioxyde de soufre pour améliorer l'aptitude à l'entreposage de deux variétés de raisins syriens (Vitis vinifera).

Use of gamma-irradiation and sulphur dioxide to improve the storability of two Syrian grape cultivars (Vitis vinifera).

Auteurs : BACHIR M. al-

Type d'article : Article

Résumé

The feasibility of using gamma-irradiation and sulphur dioxide to control post-harvest diseases and to extend the shelf-life of tables grapes in cold storage (1-2°C) was studied using two cultivars of grapes local to Syria (Baladi and Helwani). The experiment took 2 years. In the first year the clusters of both cultivars were subjected to one of the following treatments, irradiation with 1.0 kilogray of gamma-rays, sulphur dioxide (3 g of Na2S2O5 per 5 kg cluster) or a combination both 1.0 kilogray of gamma-irradiation and sulphur dioxide. In the second year clusters of Baladi cv. were treated with 1.5 kilogray of gamma-radiation, sulphur dioxide, and a combination of 1.5 kilogray of gamma-radiation and sulphur dioxide, whereas clusters of Helwani cv. were treated with 0.5 kilogray of gamma-radiation, sulphur dioxide, and a combination of 0.5 kilogray of gamma-irradiation and sulphur dioxide. Treated and untreated clusters were kept in cold storage. With the exception of Helwani cv. produced in the first year and treated with sulphur dioxide, the results indicated that separate application of sulphur dioxide and gamma-radiation reduced the rotting induced by Botrytis cinerea. Gamma-irradiation in combination with sulphur dioxide was the best method of preserving the two varieties of table grapes.

Détails

  • Titre original : Use of gamma-irradiation and sulphur dioxide to improve the storability of two Syrian grape cultivars (Vitis vinifera).
  • Identifiant de la fiche : 2000-0253
  • Langues : Anglais
  • Source : Int. J. Food Sci. Technol. - vol. 33 - n. 6
  • Date d'édition : 12/1998
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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