Recovery of protein, chitin, carotenoids and glycosaminoglycans from Pacific white shrimp (Litopenaeus vannamei) processing waste
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2012-04-01
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Mendes, Aline 
Cóordula, Carolina Ribeiro
Chavante, Suely Ferreira
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Shrimp head waste is a major byproduct of crustacean processing in North-eastern Brazil and represents an interesting source of bioactive molecules. Additionally, its use increases the sustainability of processing fishery products. the present study reports a process developed for recovering bioactive molecules from shrimp heads through autolysis. A protein hydrolysate (120 +/- 0.4 g) formed by a 9% (w/v) solution was recovered and lyophilized from I kg of shrimp heads. Approximately 195 +/- 0.5 mg of carotenoids was recovered as an ethanolic extract. the recovery of chitin and chitosan were 25 +/- 2 g kg(-1) and 17 +/- 4 g kg(-1) wet processing waste, respectively. Chitosans were characterized by C-13 NMR, and FT-IR analysis and exhibited a variable degree of deacetylation (60-80%). Sulfated glycosaminoglycans that exhibited electrophoretic migration similar to mammalian standards were also recovered (79 +/- 2 mg kg(-1) wet processing waste), and their degradation products suggested the presence of C6-sulfated heparan sulfate. These data point to the feasibility of an integrated process for isolating highly bioactive molecules, such as sulfated- and amino-polysaccharides, with a broad spectrum of applications from shrimp processing waste. (C) 2011 Elsevier B.V. All rights reserved.
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Process Biochemistry. Oxford: Elsevier B.V., v. 47, n. 4, p. 570-577, 2012.