Fish processing

As with meat, the main production of whole fish does not offer any scope for the decanter, but the bulk production of fish meal certainly does. Fish meal is a coarsely ground powder, high in protein, made from the cooked flesh of fish. Though formerly important as a fertilizer, fish meal is now primarily used in animal feed. The oily fish, such as menhaden, anchovy, herring, sand eel and pilchard, are the main source offish meal and its companion product, fish oil. To be processed into meal, chopped fish is fed by a screw conveyor through long steam cookers. The cooked mash is then pressed to remove water and oil. 

The press effluent is separated in a three-phase decanter into oil, water, and residual meal. In addition to its three-phase design, the fish meal decanter will have full erosion protection, with standard tiles, and a variable speed back-drive. 

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Hard pellets are the type preferred if the species under culture will accept them. Semimoist feeds are most commonly used in conjunction with feeding young fishes and species that find hard pellets unpalatable. Moist feeds, which contain high percentages of fresh fish, are usually available only in the vicinity of fish-processing plants. 

THE UTILIZATION OF SLUDGE GENERATED IN COAGULATION OF FISH PROCESSING WASTEWATER FOR LIQUID FEED PRODUCTION 215... 

Abstract The offals from fish processing contain substances can have high nutrition... 

Key words Fish processing wastewater, post-coagulation sludge, fish silage. 

In fish processing plants, a huge amount of wastewater is generated. The main components of this wastewater are proteins and fats, substances of nutritious value. 

The annual discharge of protein and fat with wastewater from fish processing sector in Poland is presented in Table 2. 

Table 2. Protein and fat annual discharge with wastewater from fish processing industry in Poland...

In our experiments the coagulation of fish processing wastewater was performed using ferric sulfate. The sludge generated in this process has been added for silage production. The sludge characteristics are presented in Table 3. 

Konicka-Wocial, E., Usydus, Z., Bykowski, P. Attempt to Using Thermal Spills from Fish Processing for Fodder, in International Conference on Analysis and Utilization of Oily Wastes AUZO 96, Gdansk, 1996,43-48. 

Usydus, Z., Bykowski, P.J., The utilization of waste and raw materials obtained in wastewater from the fish processing industry, Bulletin of the Sea Fisheries Institute, nr 1 (143), 1998,17. 

M drzycka, K., Szczesiul, J., Possibility of using oily waste from coagulation of fish processing waste for fodder, International Conference on Analysis and Utilisation of Oily Wastes AUZO 96, Gdansk, 1996, Materialy Konferencyjne, 145-150. 

The facile addition of primary and secondary amines to Cjq has been used to synthesize polymer-bound Cjq [126-133]. Solutions of precursor polymers containing primary amino groups in the side chain or secondary amino groups in the main chain [132] were allowed to react with CgQ in a "buckybalT fishing process. Fullerene end capped polymers (type V) are accessible by reaction of amino-terminated polystyrene [128], poly(ethylene glycol) or poly(propylene glycol) [129] with Cgo. 

Free amino acids have been used as quality indices in various fish and crustacean species. Fish processing and storage conditions decisively influence the free amino acid profile [244], According... 

Izquierdo-Pulido, M. L., T. A. Haard, J. Hung, and N. F. Haard. Oryzacystatin and other proteinase inhibitors in rice grain Potential use as a fish processing aid. J Agr Food Chem 1994 42(3) 616-622. 

The pH-stat method can be modified and applied to a particular enzyme or substrate to assay any enzyme/substrate combination. The substrate can come from any source of protein such as poultry, milk, soybean, or fish processing byproducts. The amount of protein in the reaction should not exceed 8% (as calculated in Basic Protocol 1). The enzyme can be any alkaline endopeptidase such as Alcalase, trypsin, or chymotrypsin, and should be used in the proportions indicated in Basic Protocol 1. The selection of the appropriate enzyme depends on its efficiency and cost. 

H.A. Bremner and J. Oehlenschlager (2002). In Safety and Quality Issues in Fish Processing, Woodhead Publishing Limited, p. 95. 

On a fish-processing vessel, the licensed individuals and deck crew shall be divided into three watches. However, if the vessel entered into service before January 1, 1988, and is more than 1,600 GT, or entered into service after December 31, 1987, and has more than 16 individuals on board primarily employed in the preparation of fish or fish products, then the licensed individuals and deck crew shall be divided into two watches. 

Love, R.M. (1997). Biochemical dynamics and the quality of fresh and frozen fish. In Fish Processing Technology , 2nd edn (G.M. Hall, ed.), pp.1-31. Blackie Academic and Professional, London. 

Fish meat debris by-produced on fish processing lines, unutilized fish meat, and upstream salmon meat are important sources of proteins, but have... 

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