# Optimisation of Deacetylation Process for Chitosan Production from Red Snapper (Lutjanus sp.) Scale Wastes
> Takarina N.D.

URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_85017214835
Jurnal / Konferensi: Journal of Physics Conference Series
Tahun terbit: 2017
DOI: https://doi.org/10.1088/1742-6596/812/1/012110
ISSN: 17426588
Citations: 7

## Authors
- Takarina N.D.

## Abstract
Red snapper (Lutjanus sp.) is common tropical fish that known as important source of marine product in particular Indonesia. This research aimed to optimise the chitosan synthesis from the red snapper scale waste through deacetylation process. Method in this research was divided into three stages which were deproteination, demineralization, and deacetylation. Deproteination stage was done with solution containing 4.2% w/v NaOH and heated at 60° C for 5 hours and followed by the demineralization stage with solution containing 52% v/v 2 N HCl at room temperature for 6 hours. The comparison between fish scales and solutions was 1: 6. After that, process continued with the deacetylation. Several treatment during the deacetylation process were taken into consideration to determine the effective concentration for yielding optimum chitosan output. Chitosan produced were having moisture content of 2.88%, ash content of 1.10%, and nitrogen content of 0.0136%. Optimal Degree of Deacetylation (DDA) was up to 90.83% that obtained by heating treatment at a temperature of 110° C with solution containing 80% NaOH for 4 hours, and comparison between chitin : solution was 1 : 3. This result indicated that chitosan extracted from red snapper scale is very potential and can be applied to industry.

## Keywords
- Demineralization
- Chitosan
- Chitin
- Water content
- Chemistry
- Acetylation
- Pulp and paper industry
- Nuclear chemistry
- Fishery
- Materials science
- Biology
- Biochemistry
- Enamel paint
- Geotechnical engineering
- Gene
- Engineering
- Composite material

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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