Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki)
This study examines the physicochemical, functional and structural characteristics of α-chitin extracted from the exoskeleton of Arabian red shrimp using varying concentrations of HCl and NaOH. By employing HCl and NaOH at concentrations of 0.6, 1.0 and 1.4 M, this study systematically evaluates the...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
|
| Series: | Sustainable Chemistry for the Environment |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949839225000288 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849725872291971072 |
|---|---|
| author | M.K. Rasweefali A. Nayana M.K. Raseel Rahman H. Habeebrehman S. Sabu |
| author_facet | M.K. Rasweefali A. Nayana M.K. Raseel Rahman H. Habeebrehman S. Sabu |
| author_sort | M.K. Rasweefali |
| collection | DOAJ |
| description | This study examines the physicochemical, functional and structural characteristics of α-chitin extracted from the exoskeleton of Arabian red shrimp using varying concentrations of HCl and NaOH. By employing HCl and NaOH at concentrations of 0.6, 1.0 and 1.4 M, this study systematically evaluates the degree of acetylation (DA), molecular weight (Mw), whiteness, purity, crystallinity, and other key parameters of the isolated chitin samples in comparison to commercial chitin (CCN). Results indicate a varied range of N-acetyl group content (77.34 ± 1.13 % to 96.56 ± 1.18 %) and crystallinity values (36.40–44.20 %) across different acid and alkali concentration combinations. This study highlights the effectiveness of deproteinization and demineralization processes in most cases, as confirmed by EDS microanalysis, which demonstrated the complete removal of minerals. Morphological analysis using FE-SEM revealed a smooth, porous and microfibrillar structure in the isolated chitin samples. The study emphasizes the significant influence of the extraction process on chitin properties, with lower concentrations of HCl and NaOH yielding higher CrI and DA. Furthermore, increased concentrations of HCl and NaOH were associated with decreased Mw and increased fat-binding capacity (FBC) and water-binding capacity (WBC) of the isolated chitin samples. This study enhances understanding of how species-specific traits and processing conditions influence chitin characteristics, enabling researchers to predict and select crustacean species for chitin isolation based on desired functional properties. |
| format | Article |
| id | doaj-art-fd1f38852ef640d0863c3d0096bda183 |
| institution | DOAJ |
| issn | 2949-8392 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Sustainable Chemistry for the Environment |
| spelling | doaj-art-fd1f38852ef640d0863c3d0096bda1832025-08-20T03:10:21ZengElsevierSustainable Chemistry for the Environment2949-83922025-06-011010023310.1016/j.scenv.2025.100233Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki)M.K. Rasweefali0A. Nayana1M.K. Raseel Rahman2H. Habeebrehman3S. Sabu4School of Industrial Fisheries, Cochin University of Science and Technology, Lakeside Campus, Cochin, Kerala 682016, India; Corresponding authors.School of Industrial Fisheries, Cochin University of Science and Technology, Lakeside Campus, Cochin, Kerala 682016, IndiaDepartment of Physics, SAFI Institute of Advanced Study (Autonomous), Malappuram, Kerala 673633, IndiaPG and Research Department of Zoology, Farook College, Kozhikode, Kerala 673632, IndiaSchool of Industrial Fisheries, Cochin University of Science and Technology, Lakeside Campus, Cochin, Kerala 682016, India; Corresponding authors.This study examines the physicochemical, functional and structural characteristics of α-chitin extracted from the exoskeleton of Arabian red shrimp using varying concentrations of HCl and NaOH. By employing HCl and NaOH at concentrations of 0.6, 1.0 and 1.4 M, this study systematically evaluates the degree of acetylation (DA), molecular weight (Mw), whiteness, purity, crystallinity, and other key parameters of the isolated chitin samples in comparison to commercial chitin (CCN). Results indicate a varied range of N-acetyl group content (77.34 ± 1.13 % to 96.56 ± 1.18 %) and crystallinity values (36.40–44.20 %) across different acid and alkali concentration combinations. This study highlights the effectiveness of deproteinization and demineralization processes in most cases, as confirmed by EDS microanalysis, which demonstrated the complete removal of minerals. Morphological analysis using FE-SEM revealed a smooth, porous and microfibrillar structure in the isolated chitin samples. The study emphasizes the significant influence of the extraction process on chitin properties, with lower concentrations of HCl and NaOH yielding higher CrI and DA. Furthermore, increased concentrations of HCl and NaOH were associated with decreased Mw and increased fat-binding capacity (FBC) and water-binding capacity (WBC) of the isolated chitin samples. This study enhances understanding of how species-specific traits and processing conditions influence chitin characteristics, enabling researchers to predict and select crustacean species for chitin isolation based on desired functional properties.http://www.sciencedirect.com/science/article/pii/S2949839225000288Deep-sea shrimpChitin preparationCharacterizationMolecular weightDegree of acetylationChemical treatment |
| spellingShingle | M.K. Rasweefali A. Nayana M.K. Raseel Rahman H. Habeebrehman S. Sabu Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki) Sustainable Chemistry for the Environment Deep-sea shrimp Chitin preparation Characterization Molecular weight Degree of acetylation Chemical treatment |
| title | Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki) |
| title_full | Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki) |
| title_fullStr | Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki) |
| title_full_unstemmed | Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki) |
| title_short | Influence of chemical concentrations on the physicochemical, structural, functional and color characteristics of chitin isolated from Arabian red shrimp (Aristeus alcocki) |
| title_sort | influence of chemical concentrations on the physicochemical structural functional and color characteristics of chitin isolated from arabian red shrimp aristeus alcocki |
| topic | Deep-sea shrimp Chitin preparation Characterization Molecular weight Degree of acetylation Chemical treatment |
| url | http://www.sciencedirect.com/science/article/pii/S2949839225000288 |
| work_keys_str_mv | AT mkrasweefali influenceofchemicalconcentrationsonthephysicochemicalstructuralfunctionalandcolorcharacteristicsofchitinisolatedfromarabianredshrimparisteusalcocki AT anayana influenceofchemicalconcentrationsonthephysicochemicalstructuralfunctionalandcolorcharacteristicsofchitinisolatedfromarabianredshrimparisteusalcocki AT mkraseelrahman influenceofchemicalconcentrationsonthephysicochemicalstructuralfunctionalandcolorcharacteristicsofchitinisolatedfromarabianredshrimparisteusalcocki AT hhabeebrehman influenceofchemicalconcentrationsonthephysicochemicalstructuralfunctionalandcolorcharacteristicsofchitinisolatedfromarabianredshrimparisteusalcocki AT ssabu influenceofchemicalconcentrationsonthephysicochemicalstructuralfunctionalandcolorcharacteristicsofchitinisolatedfromarabianredshrimparisteusalcocki |