Short-term capture-based aquaculture of Atlantic cod (Gadus morhua L.) generates good physicochemical properties and high sensory quality during frozen storage

Jonas Steenholdt Sørensen*, Niels Bøknæs, Ole Mejlholm, Karsten Heia, Paw Dalgaard, Flemming Jessen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The annual global catch of Atlantic cod (Gadus morhua L.) is above 1,000,000 tons, and a large proportion is preserved and sold as frozen products. In Greenland, a new innovative fishing method centred on capture-based aquaculture has been developed. To compare the new fishing and processing method with the conventional method, the texture, colour, water holding capacity, salt soluble proteins and sensory properties of fillets were evaluated during 12 months of frozen storage. High quality life (HQL) and practical storage life (PSL) were determined for each fishing and processing method based on sensory evaluation, and by using water holding capacity and the salt soluble protein fraction as indices of quality. Capture-based aquaculture fishing and related processing increased frozen storage durability regarding texture attributes, blood content and sensory properties compared to the conventional method. Lowering the storage temperature to −40 °C increase the HQL to >12 months compared to a HQL of 4–6 months at −20 °C.

Original languageEnglish
Article number102434
JournalInnovative Food Science and Emerging Technologies
Volume65
Number of pages11
ISSN1466-8564
DOIs
Publication statusPublished - 2020

Keywords

  • Durability study
  • Greenland
  • Salt soluble protein
  • Shelf-life
  • Texture profile analysis (TPA)
  • Water holding capacity

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