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Comparative Study | Chemical Sciences | Volume 15 Issue 5, May 2026 | Pages: 1201 - 1206 | Thailand
Comparison of Chitosan Extraction Processes from Oyster Mushrooms (pleurotus pulmonarius): Chemical versus Green Extraction Methods
Abstract: Chitosan is a natural substance derived from chitin. It can be extracted from oyster mushrooms (pleurotus pulmonarius) and is biodegradable. Its benefits include slowing down the spoilage of fresh food and it is safe for humans. Objective: To study and compare the results of chitosan extraction from oyster mushrooms using chemical and green extraction methods. Furthermore, to develop alternative production processes that are safe and environmentally friendly. Method: The green method substituted conventional chemicals with ethanol, fruit-derived acetic acid, and ash lye solutions for defatting, demineralization, deproteinization, and deacetylation. Chitosan yield and FTIR functional group characteristics were evaluated. Results: The green extraction method produced a higher chitosan yield (40.78 g; 4.078% w/w) than the chemical method (10.04 g; 1.06% w/w). FTIR analysis showed comparable absorption peaks associated with chitosan functional groups in both products. Conclusions: These findings suggest that the green extraction method may provide an environmentally safer and more efficient alternative for chitosan production from oyster mushrooms.
Keywords: chitosan, sustainable extraction, green chemistry, oyster mushroom, FTIR analysis, biomaterials
How to Cite?: Suphachanya Wonginchan, Rarunrat Tanakangulawat, Naaunya Thaninphatsorn, Somchok Kaewauthat, "Comparison of Chitosan Extraction Processes from Oyster Mushrooms (pleurotus pulmonarius): Chemical versus Green Extraction Methods", Volume 15 Issue 5, May 2026, International Journal of Science and Research (IJSR), Pages: 1201-1206, https://www.ijsr.net/getabstract.php?paperid=SR26511212523, DOI: https://dx.dx.doi.org/10.21275/SR26511212523