Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting Chitosan
Chitin and its derivative chitosan are among the most used polysaccharides for biomedical and pharmaceutical applications. Most of the commercially available chitin is obtained from seafood wastes. However, the interest in alternative renewable sources of chitin and chitosan, such as insects, is gro...
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MDPI AG
2021-11-01
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| author | Aurelia Poerio Thomas Girardet Chloé Petit Solenne Fleutot Jean-Philippe Jehl Elmira Arab-Tehrany João F. Mano Franck Cleymand |
| author_facet | Aurelia Poerio Thomas Girardet Chloé Petit Solenne Fleutot Jean-Philippe Jehl Elmira Arab-Tehrany João F. Mano Franck Cleymand |
| author_sort | Aurelia Poerio |
| collection | DOAJ |
| description | Chitin and its derivative chitosan are among the most used polysaccharides for biomedical and pharmaceutical applications. Most of the commercially available chitin is obtained from seafood wastes. However, the interest in alternative renewable sources of chitin and chitosan, such as insects, is growing. When new sources are identified, their stability over time has to be evaluated to allow for their commercialization. The aim of this study is to compare the physicochemical properties of chitin extracted from <i>Cicada orni</i> sloughs harvested in three different years (2017, 2019 and 2020) in order to assess the stability of the source and the repeatability of the extraction process. Chitin and its derivative chitosan were characterized by simple techniques such as Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Results suggest that the physicochemical properties of the extracted chitin varied from year to year, and that these differences are not due to the extraction process, but rather to intrinsic differences within the source. We showed that these differences could already be detected by analyzing the raw material (i.e., cicada sloughs) using the above-mentioned simple methods. The chitosan obtained from deacetylation of chitin had a low degree of deacetylation (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>66.2</mn><mo>±</mo><mn>1.6</mn></mrow></semantics></math></inline-formula>%). This low degree of deacetylation can be attributed to the deacetylation process, which is probably not appropriate for this source of chitin. |
| first_indexed | 2024-03-10T04:57:14Z |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T04:57:14Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-68593458a49044aa80c58a9573f730ed2023-11-23T02:05:30ZengMDPI AGApplied Sciences2076-34172021-11-0111231127810.3390/app112311278Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting ChitosanAurelia Poerio0Thomas Girardet1Chloé Petit2Solenne Fleutot3Jean-Philippe Jehl4Elmira Arab-Tehrany5João F. Mano6Franck Cleymand7Institut Jean Lamour, University of Lorraine, F-54000 Nancy, FranceInstitut Jean Lamour, University of Lorraine, F-54000 Nancy, FranceInstitut Jean Lamour, University of Lorraine, F-54000 Nancy, FranceInstitut Jean Lamour, University of Lorraine, F-54000 Nancy, FranceInstitut Jean Lamour, University of Lorraine, F-54000 Nancy, FranceLiBio Laboratory, University of Lorraine, F-54000 Vandoeuvre-les-Nancy, FranceDepartment of Chemistry, CICECO—Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, PortugalInstitut Jean Lamour, University of Lorraine, F-54000 Nancy, FranceChitin and its derivative chitosan are among the most used polysaccharides for biomedical and pharmaceutical applications. Most of the commercially available chitin is obtained from seafood wastes. However, the interest in alternative renewable sources of chitin and chitosan, such as insects, is growing. When new sources are identified, their stability over time has to be evaluated to allow for their commercialization. The aim of this study is to compare the physicochemical properties of chitin extracted from <i>Cicada orni</i> sloughs harvested in three different years (2017, 2019 and 2020) in order to assess the stability of the source and the repeatability of the extraction process. Chitin and its derivative chitosan were characterized by simple techniques such as Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Results suggest that the physicochemical properties of the extracted chitin varied from year to year, and that these differences are not due to the extraction process, but rather to intrinsic differences within the source. We showed that these differences could already be detected by analyzing the raw material (i.e., cicada sloughs) using the above-mentioned simple methods. The chitosan obtained from deacetylation of chitin had a low degree of deacetylation (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>66.2</mn><mo>±</mo><mn>1.6</mn></mrow></semantics></math></inline-formula>%). This low degree of deacetylation can be attributed to the deacetylation process, which is probably not appropriate for this source of chitin.https://www.mdpi.com/2076-3417/11/23/11278chitinchitosanextractionphysicochemical characterization |
| spellingShingle | Aurelia Poerio Thomas Girardet Chloé Petit Solenne Fleutot Jean-Philippe Jehl Elmira Arab-Tehrany João F. Mano Franck Cleymand Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting Chitosan Applied Sciences chitin chitosan extraction physicochemical characterization |
| title | Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting Chitosan |
| title_full | Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting Chitosan |
| title_fullStr | Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting Chitosan |
| title_full_unstemmed | Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting Chitosan |
| title_short | Comparison of the Physicochemical Properties of Chitin Extracted from <i>Cicada orni</i> Sloughs Harvested in Three Different Years and Characterization of the Resulting Chitosan |
| title_sort | comparison of the physicochemical properties of chitin extracted from i cicada orni i sloughs harvested in three different years and characterization of the resulting chitosan |
| topic | chitin chitosan extraction physicochemical characterization |
| url | https://www.mdpi.com/2076-3417/11/23/11278 |
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