منابع مشابه
Biomaterials of Marine Crustaceans – Prospects and Perspectives
Food processing produces large quantities of by-products. Disposal of waste can lead to environmental and human health problems, yet often they can be turned into high value, useful products. Crustacean shell wastes from shrimp, crab, lobster, and krill contain large amounts of chitin, a polysaccharide that may be extracted after deproteinisation and demineralization of the exoskeletons .crusta...
متن کاملThe Parasitic Dinoflagellates of Marine Crustaceans
Parasitic dinoflagellates have recently emerged as significant disease agents of commercially important crustaceans. For example, epizootics of Hematodinium have seriously affected certain crab and lobster fisheries. The parasitic dinoflagellates of crustaceans are, however, relatively unknown. Marine crustaceans are parasitized by two orders of dinoflagellates: the Blastodinida and the Syndini...
متن کاملMarine Isopod Crustaceans from Easter Island1
Isopods from 29 shallow-water stations around Easter Island were identified. Thirteen species in three suborders are described as new: suborder Anthuridea, Mesanthura pascuaensis, Sauranthura rapanui, Califanthura dodecaseta, Paranthura nordenstami; suborder Asellota, Joeropsis acoloris, Joeropsis bicornis, Joeropsis limbatus, Joeropsis trilabes, Salvatiella islapascua, Uromunna biloba, Paramun...
متن کاملSHORT COMMUNICATION Stoichiometry of some marine planktonic crustaceans
Atomic C:N ratios in calanoid copepods were generally below the Redfield ratio (6.6), except for the fifth copepodid stage of Calanus sp. The C:P ratios in copepods were generally close to, or higher than the Redfield ratio of 106, but low C:P ratios were found in Acartia clausi (63 ± 7) and in the cladocerans (Podon sp.: 34 ± 5 and Evadne sp.: 59 ± 22). Recently, the indirect effect of an appa...
متن کاملAspartic proteinases in the digestive tract of marine decapod crustaceans.
Decapod crustaceans synthesize highly active proteolytic enzymes in the midgut gland and release at least a part of them into the stomach where they facilitate the first step in peptide hydrolysis. The most common proteinases in the gastric fluid characterized so far are serine proteinases, that is, trypsin and chymotrypsin. These enzymes show highest activities at neutral or slightly alkaline ...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1971
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.37.63