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Les atmosphères contrôlées retardent la croissance des pousses, ont un impact sur les changements de composition et conservent les qualités visuelles de l'ail.

Controlled atmospheres retard sprout growth, affect compositional changes, and maintain visual quality attributes of garlic.

Auteurs : CANTWELL M. I., HONG G., KANG J., et al.

Résumé

Garlic storage is important to provide product for fresh market and fresh peeled processing. Garlic bulbs (cultivars California Late and California early) and unpeeled cloves were stored in several experiments in air and controlled atmosphere at 0-1 °C for up to 6 months. Quality changes, especially sprout growth, decay and discoloration, were reduced by CO2-containing atmospheres, but the low O2 atmospheres alone generally had little benefit. Storage of garlic with CO2 atmospheres >15% may lead to injury after 4-6 months. Fructan concentrations were similar among air- and CA-stored bulbs, but notably decreased under 20% CO2. Thiosulfinate and pyruvate concentrations were generally maintained in CO2-containing atmospheres, but increased in air- and low O2-stored garlic that permitted sprout development. Alliin concentrations were generally stable during storage up to 6 months, but in some cases decreased significantly under high CO2 atmospheres. For fresh peeled garlic, atmospheres of CO2 (5-15%) in air or low O2 (1-3%) were effective in retarding discoloration and decay at 5 and 10 °C for 3 weeks.

Détails

  • Titre original : Controlled atmospheres retard sprout growth, affect compositional changes, and maintain visual quality attributes of garlic.
  • Identifiant de la fiche : 2005-0871
  • Langues : Anglais
  • Date d'édition : 2003
  • Source : Source : Acta Hortic./Proc. int. control. Atmos. Res. Conf., Rotterdam
    n. 600; 791-794.

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