Interdisciplinary Laboratory in Bio-Resources, Environment and Materials, Higher Normal School, Cadi Ayyad University, 4000 Marrakech, Morocco; Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France.
Interdisciplinary Laboratory in Bio-Resources, Environment and Materials, Higher Normal School, Cadi Ayyad University, 4000 Marrakech, Morocco.
Int J Biol Macromol. 2023 Dec 1;252:126292. doi: 10.1016/j.ijbiomac.2023.126292. Epub 2023 Aug 11.
The majority of studies have focused on the industrial exploitation of marine fisheries waste through the production of natural bioactive bioploymeres such as chitin and chitosan. However, in recent years, beetles are increasingly attracting the interest of scientists as a source of chitin and chitosan for the preparation of hydrogels for sustainable engineering development. In the present work, we focus on the study for the first time a new Moroccan species of beetle (Akis granulifera Sahlberg, 1823), for the extraction of chitin and the elaboration of chitosan. A chemical extraction process was used. Then, physicochemical characterizations by FT-IR, SEM, XRD, H NMR, TGA/DSC, Potentiometry, Viscosimetry, and elemental analysis were performed. In addition, to evaluate its physicochemical quality, the elaborated chitosan is combined with alginate to form a hydrogel. This hydrogel was effectively characterized by SEM, DRX and FTIR to show the potential of chitosan from Akis granulifera in biomaterial applications.
大多数研究都集中在通过生产天然生物活性生物聚合物（如甲壳素和壳聚糖）来实现海洋渔业废物的工业利用。然而，近年来，甲虫作为甲壳素和壳聚糖的来源，越来越引起科学家的关注，用于制备可持续工程发展的水凝胶。在本工作中，我们首次专注于研究一种新的摩洛哥甲虫（Akis granulifera Sahlberg, 1823），用于甲壳素的提取和壳聚糖的制备。采用化学提取工艺。然后，通过傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）、X 射线衍射（XRD）、核磁共振波谱（H NMR）、热重分析/差示扫描量热法（TGA/DSC）、电位滴定法、黏度法和元素分析对其进行了理化特性表征。此外，为了评估其理化质量，将制备的壳聚糖与藻酸盐结合形成水凝胶。通过 SEM、DRX 和 FTIR 对水凝胶进行了有效表征，表明了 Akis granulifera 壳聚糖在生物材料应用中的潜力。
