Modern ways for processing of chitin-containing raw materials
Abstract
The main source of chitin-containing raw material (CCRM) is waste from processing of various types of crustaceans — crabs, shrimps, krill, etc. The work describes methods of obtaining chitin and its derivative chitosan. Chitin, as an insoluble polymer, can’t be separated from CCRM directly: you need to remove consistently the protein and mineral components of CCRM for chitin obtaining (deproteinization (DP) and demineralization (DM) processes, respectively). Chemical treatment is the standard way for CCRM treatment which includes the DP process with a solution of alkali (NaOH), and the DM process with a solution of hydrochloric acid (HCl). The biotechnological process involves the use of enzymes of various origins for deproteinization of CCRM to mitigate the conditions for chitin obtaining and for improving its quality. Electrochemical and electrophysical methods are the alternative way for chitin producing. Analysis of literature data showed that chitin is mainly considered as a raw material for the production of chitosan, widely used in various industries such as food, cosmetic, medical and biotechnology. The efficiency of the production of large amounts of chitin/chitosan, which allows to get high profit by reducing direct production costs and production costs. It is established that the European market is largely aimed at the production of high value-added biopolymers chitin/chitosan using innovative difficult reproducible technology and marketing advances.
About the Authors
N. G. StrokovaRussian Federation
Moscow
A. V. Podkorytova
Russian Federation
Moscow
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Review
For citations:
Strokova N.G., Podkorytova A.V. Modern ways for processing of chitin-containing raw materials. Trudy VNIRO. 2018;170:124-152. (In Russ.)