Utilization of Crawfish Processing Wastes as Carotenoids, Chitin, and Chitosan Sources

캐로티노이드 , 키틴, 키토산의 원료로서 Crawfish 가공 폐기물의 이용

  • No, hong-Hyoon (Dept. of Food Science and Technology, Hyosung Women's University) ;
  • Samuel P.Meyers (Dept. of Food Science , Louisiana State University)
  • Published : 1992.06.01

Abstract

The Louisiana crawfish industry comprises the largest concentration of crustacean aquaculture in the United States. Processing plants throughout the culture region annually generate as much as 80 million pounds of peeling waste during recovery of the 15% (by weight) edible tail meat. A commercial oil extraction process for recovery of carotenoid astaxanthin from crawfish waste has been developed. Crawfish pigment in its various forms finds applications as a source of red intensifying agents for use in aquaculture and poultry industries. Crawfish shell, separated in the initial pigment extraction step, is an excellent source of chitin. Applicable physicochemical procedures for isolation of chitin from crawfish shell and its conversion to chitosan have been developed. Crawfish chitosan has been demonstrated to be both an effective coagulant and ligand-exchange column material , respectively, for recovery of valuable organic compounds from seafood processing wastewater.

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