Optimizing Chitosan production from insect-derived chitin

Authors

DOI:

https://doi.org/10.3329/bjsir.v60i3.82280

Keywords:

chitin, chitosan, deacetylation, RSM, Optimization, Melanoplus differentialis

Abstract

Chitosan is an emerging raw material with increasing global demand, traditionally derived from crustaceans. Its production faces challenges such as high cost and inconsistent yields, necessitating the search for new chitosan precursors. This study investigates Melanoplus differentialis, a differential grasshopper, for sustainable chitosan production. Chitin was extracted from M. differentialis via sequential demineralization, deproteination, and decolorization, and then deacetylated. Response Surface Methodology (RSM), using the Box-Behnken design, was used to optimize NaOH concentration, NaOH:Chitin ratio, and deacetylation time. Statistical analysis identified NaOH concentration as the most significant factor influencing yield. The optimal process conditions of 40.5% NaOH, 16.8 mL/g NaOH: chitin ratio, and 69.3 minutes resulted in 60.62±0.79% chitosan yield. FTIR confirmed the transformation of chitin to chitosan. This study shows M. differentialis as a promising, unconventional chitosan precursor.

Bangladesh J. Sci. Ind. Res. 60(3), 213-224, 2025

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Author Biographies

Anako Opotu Lawal, Department of Chemistry, Kaduna State University, Kaduna State, Nigeria

 

 

Enebi E Jasper, Department of Chemistry, Dennis Osadebay University, Asaba, Delta State, Nigeria

 

 

Jude Chinedu C Onwuka, Department of Science Laboratory Technology, Federal University of Lafia, Nasarawa State, Nigeria

 

 

King O Ijege, Department of Applied Chemistry, Kaduna Polytechnic, Kaduna State, Nigeria

 

 

Francis Chidera Emeachi, Department of Applied Chemistry, Kaduna Polytechnic, Kaduna State, Nigeria

 

 

Adeniyi Taiwo Abayomi, Department of Applied Chemistry, Kaduna Polytechnic, Kaduna State, Nigeria

 

 

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Published

2025-09-21

How to Cite

Lawal, A. O., Jasper, E. E., Onwuka, J. C. C., Ijege, K. O., Emeachi, F. C., & Abayomi, A. T. (2025). Optimizing Chitosan production from insect-derived chitin. Bangladesh Journal of Scientific and Industrial Research, 60(3), 213–224. https://doi.org/10.3329/bjsir.v60i3.82280

Issue

Vol. 60 No. 3 (2025)

Section

Articles

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