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Hémocyanine : cause probable de l'apparition de taches noires sur les crevettes Penaeus japonicus lors de leur entreposage.

Hemocyanin: a most likely inducer of black spots in kuruma prawn Penaeus japonicus during storage.

Auteurs : ADACHI K., HIRATA T., NAGAI K., et al.

Type d'article : Article

Résumé

Hemocyanin (Hc) from plasma of kuruma prawn was characterized as a potent inducer of black spots during storage. An oxygen transporter, hemocyanin was converted into phenoloxidase (PO) like enzyme (HdPO) with SDS treatment as well as prophenoloxidase isolated from hemocytes. Both enzymes showed similar biochemical properties. The isolated PO, however, was very unstable and its activity was drastically reduced when frozen and thawed at 25 °C for less than a week while HdPO completely retained its activity for more than a month, suggesting that HdPO is a key factor in black spot development in freeze-thawed prawns.

Détails

  • Titre original : Hemocyanin: a most likely inducer of black spots in kuruma prawn Penaeus japonicus during storage.
  • Identifiant de la fiche : 2002-2517
  • Langues : Anglais
  • Source : Ital. J. Food Sci. - vol. 66 - n. 8
  • Date d'édition : 10/2001
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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