·imÛnek J . , BartoÀová H.: Effect of dietary chitin and chitosan on cholesterolemia of rats. Acta Vet. Brno 2005, 74: 491-499. Chitin – chitosan is being advertised as a food supplement that effectively lowers blood cholesterol concentration and controls obesity. The lard-fed rat was chosen because this model shares similarities with human hypercholesterolemia. The male rats were divided into ...

Chitin, one of the most abundant organic substances in nature, is consumed by marine bacteria, such as Vibrio cholerae, via a multitude of tightly regulated genes (Li and Roseman 2004, Proc Natl Acad Sci USA. 101:627-631). One such gene, cod, is reported here. It encodes a chitin oligosaccharide deacetylase (COD), when cells are induced by chitobiose, (GlcNH(2))(2), or crude crab shells. COD wa...

This research deals with the formulation, characterization, and evaluation of new anticorrosive protective coatings. The study objective is to protect mild carbon steel in acidic media by adherent nonporous polymeric coatings formulated from polystyrene shrimp shells. Solid wastes shells are dried into a fine powder sonicated toluene. obtained suspension refluxed polystyrene. hot-melt applied m...

Average weights of individual CaSO4-dried cysts (3 64/ig), shells (0-74 /ig) and embryos (2-90 /ig) of the brine shrimp, Artemia salina, were determined. ' Residual water' contents of these preparations were estimated to be 1-58 (cysta), 079 (shells), and 1-78 (embryos) in units of g HaO/ioo g dried weight. Cysts hydrated to a similar degree in the liquid or vapour phase of NaCl solutions at o ...

Every year, close to 8 million tons of waste crab, shrimp and lobster shells are produced globally, as well 10 oyster, clam, scallop mussel shells. The disposed frequently dumped at sea or sent landfill, where they modify soils, waters marine ecosystems. Waste a major by-product, which should become new raw material be used the best their potential. There number applications for in many fields,...