Cod Fish

These nonfatty fish (fat content 1%, cf. Table 13.5) are usually marketed fresh, whole and gutted, and many have the head and/or skin removed or be filleted. The Atlantic cod (Gadus morhua) is considered the most important food fish of Northern Europe. Classified according to 

Saithe is also known as coalfish or pollack (Pol-lachius virens) or by names such as hlack cod or Boston blueflsh. After salt-curing and slicing, it is lightly smoked and packed in edible oil. Saithe is marketed in Germany as a salmon substitute called Seelachs . Rolled in balls and canned, it is called side boiler in Norway. 

Whiting Merlangius merlangius), known as mer-lan in France, is a North Atlantic, North Sea fish, marketed in many forms. 

Fish Moisture Protein Fat Minerals Edible portion  

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A trisialoganglioside of the same type was later also found in the tissues of vertebrates it was shown to be present in the brain of elasmobranchs,312 and it was isolated from the brain of cod fish,313 hog kidney,314 and erythrocyte membranes of cat.315... 

FIGURE 8.2 IgE-binding of human sera to aqueous cod fish extracts discovered by SDS-PAGE, followed by immunoblotting. M, molecular weight marker 1-8, sera from patients allergic to fish. (Modified from Hansen, T.K. et al., Ann. Allergy Asthma Immunol., 78, 191, 1997. With permission.)... 

Parvalbumin Amino Acid Sequences of Various Vertebrates Compared with the Major Allergen Gad c 1 from Cod Fish (G. callarias)... 

Elsayed, S. and Apold, J. 1983. Immunochemical analysis of cod fish allergen M Location of the immunoglobulin binding sites as demonstrated by the native and synthetic peptides. Allergy 38 449 159. 

On the contrary, continued exploitation, including exploitation of immature cod (ICES, 2006), will delay recovery and increase the risk of extinction from the eastern Baltic Sea (Jonzen et al., 2002 ICES, 2005). This scenario of population collapse due to high exploitation on a marine species at its edge of distribution in the Baltic Sea has occurred before for the dab Limanda limanda (Temming, 1989). Furthermore, once the population decreases to extremely low levels, recovery may not occur even if cod fishing is banned this precedent has occurred for cod populations in Newfoundland waters (Hutchings, 2000). 

Even if the deviations of the TACs from the scientifically recommended ones were significant and the implementation was in many cases reluctant and slow, must the IBSFC be regarded as a success in international cooperation, especially in the political environment of the cold war. And even now where most of the area is under EU jurisdiction is the implementation still not optimal (see ICES, 2006). In the past the implementation could have and nowadays could still be done two ways. The most straightforward measure would be to adhere strictly to the scientific recommendations and to improve significantly the control and enforcement. Second, in the more recent history, a complete ban on cod fishing in the eastern Baltic has been recommended by ICES for several years since the early 2000s, including 2006, but has not been implemented. 

About 200 kg of cod fish were collected in the Southern part of the North Sea. The fish was filleted and all visible bones, skin, parasites and blood clots were removed. 75 kg of clean fillets were finally obtained and cut into pieces, packed in plastic bags in units of 1 kg and frozen. The whole procedure was done using titanium knives and taking all necessary precautions to prevent contamination or biological degradation. 

With few exceptions 12a-hydroxylation is carried out on Cjy-sterol substrates by a hepatic microsomal enzyme (cf. Chapter 9). Those exceptions include 12a-hydrox-ylation of chenodeoxycholic acid in the python [147], eel [148], chicken [149] and trout [150]. Perfusion of isolated rat liver with chenodeoxycholic acid was reported to provide about 30% of the biliary acids as cholic acid [151]. Taurochenodeoxycho-late was hydroxylated to taurocholate by liver homogenates of cod fish [1[36]. 

Dimethylmercury is used as a reagent in inorganic synthesis, and as a reference standard for mercury nuclear magnetic resonance (Hg NMR). It is an environmental pollutant found in bottom sediments and also in the bodies of birds and marine mammals such as whales and fishes. It occurs in fishes and birds along with monomethytmercury. In humans, its presence is attributed to the consumption of pilot whale meat, cod fish, and other sea food. 

Cod-fish fillets [37] Prediction of the state of freshness as a function of storage temperature and time 8 thickness shear mode sensors and 5 electrical conductivity sensors... 

D. Natale, G. Olafsdottir, S. Einarsson, E. MartineUi, R. Paolesse, A. D Amico, Comparison and integration of different electronic noses for freshness evaluation of cod-fish fillets. Sensors Actuators B Chem. 77, 572-578 (2001)... 

Chitting Fish Fillets. Cod fish fillets originally at 10 C are packed to a thickness... 

Fifl. 5.3. Plot of factor scores for meat and fish samples. C, B, P- hand-deboned chicken, beef, and pork M, m, mechnically debonded pork and chick i F, cod fish f, cod fish in presence of cryoprotectants (from Li-Chan et at. 1987, with permission of the Institute of... 

Fig. 13.2. Tryptic hydrolysis of myofibrils (M) and actin (A) from cod fish (C) and beef (B) under the same conditions, (according to Connell, 1964)...

Fig. 13.3. Cod fish quality change during storage (according to Ludorff, 1973). Sensory evaluation in total 15 points are given, 5 for visual appearance and 10 for odor, taste and texture Q-value electric resistance of the fish tissue as recorded by a fish tester Q40 quality class S, Q = 30-40 A, Q = 20-30 B, Q20 C and worse TMAO-N trimethylamine oxide-N TVB-N total volatile base-N VRS volatile reducing substances, TMA-N trimethylamine-N...

Johansen, S. and Bakke, I. (1996) The complete mitochondrial DNA sequence of Atlantic cod, Gadus morhua relevance to taxonomic studies among cod-fishes . Molecular... 

Fish and fish products (caviar, sea eel, cod fish, cod liver, salmon oil)... 

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