1. A. Heeres (Syncom BV), M. van der Sluis (Matripure BV)
Validating shrimp
P.G.H. Uiterweerd (Hanzehogeschool), A.R. Kerkhove (Hanzehogeschool),
A. Heeres (Syncom BV), M. van der Sluis (Matripure BV)
Introduction
Recently, mechanical peeling of North Sea shrimp has been
developed. This creates a new biomass waste stream in the
north of the Netherlands, i.e. shrimp shells.
Oxidation and deacetylation
Chitin was oxidized to 6-carboxychitin by treatment of the
former with NaOCl, NaBr and TEMPO.1 This afforded the
product in 93% yield.
6-CARBOXYCHITIN
Deacetylation to chitosan with 0000 is under investigation.2
Aim
Shrimp shells contain chitin, a versatile polysaccharide. The
polysaccharide. The aim is to isolate chitin from shrimp
shells and validate the product for medical and industrial
purposes.
CHITIN
Validations include:
Ultrapure chitine for medical purposes
Synthesis of valuable chitin derivatives
Application of chitin and chitosan in coatings and glue
Application of chitosan in water purification
Future plans
Devise a green method of chitin isolation
Removal of any residual neurotoxins from chitin
Scale up of the isolation procedure in ZAP
Deacetylation of chitin to chitosan
Acknowledgements
Telson BV, Dynaplak BV, BIONND, Rijksuniversiteit
Groningen.
Isolation
Shrimp shells consist of chitin, proteins and calcium
carbonate. By subsequent treatment with HCl and NaOH,
CaCO3 and the proteins are removed, respectively. This
afforded 98% of the chitin that is theoretically present in
the shells.
The procedure will be scaled up in
our Zernike Advanced Processing
facility.
Literature
0000 Patent oxidatie
0000 Deacetylering artikel