Extraction and physicochemical characterization of chitin from Cicadaorni sloughs of the south-eastern French Mediterranean basin
| Autor: | Poerio, Aurelia, Petit, Chloé, Jehl, Jean-Philippe, Arab-Tehrany, Elmira, Mano, João F., Cleymand, Franck |
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| Přispěvatelé: | Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ingénierie des Biomolécules (LIBio), Université de Lorraine (UL), Center for Research in Ceramic and Composite Materials (CICECO), Universidade de Aveiro, ANR-15-IDEX-0004,LUE,Isite LUE(2015) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Molecules Molecules, MDPI, 2020, 25 (11), pp.2543. ⟨10.3390/molecules25112543⟩ Molecules, Vol 25, Iss 2543, p 2543 (2020) Volume 25 Issue 11 |
| ISSN: | 1420-3049 |
| DOI: | 10.3390/molecules25112543⟩ |
| Popis: | Chitin is a structural polysaccharide of the cell walls of fungi and exoskeletons of insects and crustaceans. In this study, chitin was extracted, for the first time in our knowledge, from the Cicada orni sloughs of the south-eastern French Mediterranean basin by treatment with 1 M HCl for demineralization, 1 M NaOH for deproteinization, and 1% NaClO for decolorization. The different steps of extraction were investigated by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Thermogravimetric Analysis (TGA), and Scanning Electron Microscopy (SEM). Results demonstrated that the extraction process was efficiently performed and that Cicada orni sloughs of the south-eastern French Mediterranean basin have a high content of chitin (42.8%) in the &alpha form with a high degree of acetylation of 96% ± 3.4%. These results make Cicada orni of the south-eastern French Mediterranean basin a new and promising source of chitin. Furthermore, we showed that each step of the extraction present specific characteristics (for example FTIR and XRD spectra and, consequently, distinct absorbance peaks and values of crystallinity as well as defined values of maximum degradation temperatures identifiable by TGA analysis) that could be used to verify the effectiveness of the treatments, and could be favorably compared with other natural chitin sources. |
| Databáze: | OpenAIRE |
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