Trimethylamine oxide and derived compounds’ changes during frozen storage of hake (Merluccius merluccius)

Protein denaturation in frozen stored hake (Merluccius merluccius L

Protein solubility of whole and minced muscle of hake (Merluccius merluccius L.) was evaluated at different temperatures of storage: -5°, -12° and -20°C. Proteins soluble in 1% NaCl did not show any change at any of the temperatures of storage, while the 5% NaCl-soluble proteins decreased significantly when whole hake was stored at -5° and 12°C (p < 0.01). A correlation was found between the de...

Optimization of a Cytochrome-P450-Monooxygenase-1A-Mediated EROD Assay in the Cape Hake Species Merluccius capensis and Merluccius paradoxus (Pisces)

Cytochrome P450 monooxygenase 1A (CYP1A) is induced by several planar toxic compounds, for example, polychlorinated biphenyls (PCBs) and the induction of this protein is often measured in terms of CYP1A-mediated 7-ethoxyresorufin-O-deethylase (EROD) activity. This study was aimed at developing this assay in the Cape hake species Merluccius capensis and Merluccius paradoxus (considered one stock...

EFFECT OF SLURRY ICE ON CHEMICAL CHANGES RELATED TO QUALITY LOSS DURING EUROPEAN HAKE (Merluccius merluccius) CHILLED STORAGE

Slurry ice is a biphasic system consisting of small spherical ice crystals surrounded by seawater at subzero temperature. Its employment was evaluated in the present work as a new chilled storage method for whole European hake (Merluccius merluccius) and compared to traditional flake icing. Different chemical analyses (nucleotide degradation, formaldehyde formation, lipid hydrolysis and oxidati...

DIFFERENTIAL LIPID DAMAGE IN VARIOUS MUSCLE ZONES OF FROZEN HAKE (Merluccius merluccius)

Enhanced quality and safety during on-board chilled storage of fish species captured in the Grand Sole North Atlantic fishing bank

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 The Grand Sole North Atlantic fishing bank is exploited by several European countries, although time lapsed between catch and destiny arrival can attain 15 days. In the present work, the use of slurry ice (SI) system was investigated for the on-board storage of chilled fish and carried out in parallel to traditional flake icing (FI). Three species (hake, M...