Use of EDTA Compounds for the Preservation of Haddock Fillets

1968 ◽  
Vol 25 (10) ◽  
pp. 2071-2082 ◽  
Author(s):  
H. E. Power ◽  
R. Sinclair ◽  
K. Savagaon
Keyword(s):  
Bacterial Population ◽  
Ethylenediaminetetraacetic Acid ◽  
Storage Life ◽  
Life Extension ◽  
Melanogrammus Aeglefinus ◽  
Disodium Edta ◽  
Rate Of Increase ◽  
Edta Solution ◽  
Effect Of Treatment ◽  
Haddock Melanogrammus Aeglefinus

Studies of the effect of treatment of haddock (Melanogrammus aeglefinus) with solutions of sodium salts of ethylenediaminetetraacetic acid (EDTA) have shown that a 1% solution of tetrasodium EDTA used as a dip can extend the storage life in ice (0 C) for 11 days over that of untreated controls. The texture of these fillets remained acceptable for the whole of their storage lives.Fillets treated with 0.5 and 0.75% tetrasodium EDTA had a storage life extension of 5 days and those treated with 1% disodium EDTA had a storage life of 6 days longer than the untreated control fillets. Fillets treated with 0.5 and 1.0% disodium calcium EDTA solution showed 0- and 1-day storage life extension respectively.Increase in trimethylamine (TMA) during storage was reduced by treatment with EDTA with the tetrasodium EDTA-treated fillets having the lowest rate of increase. Samples were rejected by the taste panel as spoiled with TMA values of between 3 and 9.5 mg TMA nitrogen (TMA-N) per 100 g.Although treatment of fillets with EDTA extended the storage life in ice and suppressed the increase in TMA, there was little or no effect on the growth of the bacterial population.

Gamma Irradiation as a Means of Extending the Storage Life of Haddock Fillets

1964 ◽  
Vol 21 (4) ◽  
pp. 827-835 ◽  
Author(s):  
H. E. Power ◽  
D. I. Fraser ◽  
W. Neal ◽  
W. J. Dyer ◽  
C. H. Castell
Keyword(s):  
Gamma Radiation ◽  
Gamma Irradiation ◽  
Storage Life ◽  
Taste Panel ◽  
Melanogrammus Aeglefinus ◽  
Unirradiated Control ◽  
Haddock Melanogrammus Aeglefinus

Studies of the storage life of iced haddock (Melanogrammus aeglefinus) fillets after treatment with doses of gamma radiation of 75,000, 150,000, and 250,000 rads, have shown that a useful extension of the storage life is made possible by irradiation. The fillets irradiated with the 75,000-rad dose and assessed after cooking became unacceptable after about 25 days at 0 °C. The unirradiated control became unacceptable after 12 days. Fillets irradiated at the two higher levels were of lower quality initially than the fillets irradiated at the 75,000-rad level but showed no significant decrease in acceptability up to 27 days storage in ice. Raw fillets developed an objectionable odour and appearance just prior to becoming unacceptable to the taste panel.

Ecology of haddock (Melanogrammus aeglefinus L.) in the Norwegian Deep

1994 ◽  
Vol 51 (1) ◽  
pp. 31-44 ◽  
Author(s):  
O Albert
Keyword(s):  
Melanogrammus Aeglefinus ◽  
Haddock Melanogrammus Aeglefinus

Recent Growth, Biochemical Composition and Prey Field of Larval Haddock (Melanogrammus aeglefinus) and Atlantic Cod (Gadus morhua) on Georges Bank

1987 ◽  
Vol 44 (1) ◽  
pp. 14-25 ◽  
Author(s):  
L. J. Buckley ◽  
R. G. Lough
Keyword(s):  
Gadus Morhua ◽  
Atlantic Cod ◽  
Dry Weight ◽  
Melanogrammus Aeglefinus ◽  
Good Growth ◽  
Georges Bank ◽  
Larval Population ◽  
Prey Biomass ◽  
Recent Growth ◽  
Haddock Melanogrammus Aeglefinus

A transect across southern Georges Bank in May 1983 showed higher levels of available prey for haddock (Melanogrammus aeglefinus) and cod (Gadus morhua) larvae at two stratified sites than at a well-mixed site. At the stratified sites, prey biomass was high (30–300 μg dry wt∙L−1) near the surface above the thermocline; values were lower and more uniform with depth (10–30 μg dry wt∙L−1) at the well-mixed site. Larval population centers generally coincided with prey biomass vertically. Recent growth in dry weight of haddock larvae as estimated by RNA–DNA ratio analysis was higher at the stratified sites (8–13%∙d−1) than at the well-mixed site (7%∙d−1). Larvae appeared to be in excellent condition at the stratified sites, but up to 50% of haddock larvae from the well-mixed site had RNA–DNA ratios in the range observed for starved larvae in the laboratory. Cod collected at the same site were in better condition and growing faster than haddock. The data support the hypotheses that (1) stratified conditions in the spring favor good growth and survival of haddock larvae and (2) cod larvae are better adapted to grow and survive in well-mixed waters at lower levels of available food than haddock larvae.

Distinguishing Between One-Day-Old Cod (Gadus morhua) and Haddock (Melanogrammus aeglefinus) Eggs by Gas Chromatography and SIMCA Pattern Recognition

1985 ◽  
Vol 42 (11) ◽  
pp. 1823-1826 ◽  
Author(s):  
H. Knutsen ◽  
E. Moksnes ◽  
N. B. Vogt
Keyword(s):  
Fatty Acids ◽  
Pattern Recognition ◽  
Gas Chromatography ◽  
Multivariate Analysis ◽  
Methyl Ester ◽  
Gadus Morhua ◽  
Melanogrammus Aeglefinus ◽  
One Step ◽  
High Resolution Gas Chromatography ◽  
Haddock Melanogrammus Aeglefinus

Single cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) eggs were acid hydrolized. All the fatty acids were liberated and converted to methyl ester in a one-step reaction. The nonpolar hexane extract was analyzed by high resolution gas chromatography (HRGC). Selected peaks, occurring in both types of samples and in all chromatograms, were used to create a matrix for multivariate analysis. We conclude that cod and haddock eggs can be distinguished using this method.

Vertebral column deformity in adult wild haddock (Melanogrammus aeglefinus )

2018 ◽  
Vol 41 (12) ◽  
pp. 1909-1915 ◽  
Author(s):  
Laith A. Jawad ◽  
Tom J. Hansen ◽  
Sonnich Meier ◽  
Jon Egil Skjaeraasen ◽  
Per Gunnar Fjelldal
Keyword(s):  
Vertebral Column ◽  
Melanogrammus Aeglefinus ◽  
Haddock Melanogrammus Aeglefinus
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