Extraction of Chitin from Crayfish (Astacus leptodactylus) Shell Waste

Year 2018, Volume: 33 Issue: 1, 99 - 104, 30.06.2018

Aygül Küçükgülmez

https://doi.org/10.28955/alinterizbd.432139

Cited By: 3

Abstract

In this study, chitin was chemically extracted from the crayfish (Astacus leptodactylus)
shells. Deproteinization, demineralization and decolorization
processes were applied to obtain chitin. In order to determine
characterization of the chitosan; yield, moisture and ash contents, degree of deacetylation,
colour properties, Fourier Transform
Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM) analyses were applied. The
deacetylation degree of chitin from crayfish shells was found as 25.67% detected
by elemental analysis. L*, a*, b*,
chroma, hue and whiteness in color properties of crayfish chitin were measured.
The chemical composition of crayfish chitin was characterized with FTIR
analysis. SEM analysis of shells and chitin samples were obtained and compared
at different magnification.  The findings
of the present study are important to obtain the chitin from unevaluated crayfish
wastes.

Keywords

Chitin, Crayfish, Astacus leptodactylus, physicochemical characterization

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