Effect Of Deacetylation Temperature On The Degree Of Deacetylation Of Chitosan Extracted From Panulirus Penicillatus Shells

Lidya Dwi Handayani, Yusra Yusra, Sindy Gemaeka Putri

Abstract


Chitosan is a valuable biopolymer derived from chitin, whose quality is strongly influenced by its degree of deacetylation (DD). Deacetylation temperature is one of the key parameters affecting the conversion of chitin to chitosan. This study aimed to investigate the effect of deacetylation temperature on the degree of deacetylation of chitosan extracted from Panulirus penicillatus shells. Chitosan was produced through demineralization, deproteinization, and deacetylation processes, with deacetylation temperatures varied at 80°C, 90°C, and 100°C. The DD of the resulting chitosan was determined using Fourier Transform Infrared (FTIR) spectroscopy and calculated based on the absorbance ratio of characteristic functional groups. Statistical analysis was performed to evaluate the significance of temperature variation on DD values. The results indicated that deacetylation temperature significantly affected the degree of deacetylation of chitosan, with higher temperatures generally leading to higher DD values within the studied range. These findings demonstrate that temperature control during the deacetylation process plays a crucial role in improving chitosan quality and provides important insights for optimizing chitosan production from lobster shell waste.


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DOI: http://dx.doi.org/10.52155/ijpsat.v56.1.7895

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