AI Article Synopsis
- - The study focused on extracting high-purity Eucommia ulmoides gum (EUG) using a biphasic solvent system that combined deep eutectic solvent (DES) and petroleum ether, achieving a high extraction rate of 22.986% and purity of 98.01%.
- - Characterization techniques like FTIR, NMR, XRD, and DSC confirmed the chemical structure of EUG, showing structural changes and flexibility due to partial destruction of its crystalline phase during extraction.
- - The extraction process demonstrated significant recycling potential for both solvents, with recovery rates of 94.04% for DES and 82.60% for petroleum ether, suggesting it could serve as a more efficient alternative to traditional
Article Abstract
Eucommia ulmoides gum (EUG) with high purity was extracted directly from the Eucommia ulmoides pericarp using a biphasic solvent system consisting of deep eutectic solvent (DES) and petroleum ether. The addition of DES enabled the deconstruction of lignocellulose and the exposure of EUG, leading to the efficient dissolution of EUG in petroleum ether. The extraction rate of EUG was 22.986 %, and the purity of EUG was 98.01 %. The chemical structure of EUG was confirmed by FTIR and NMR characterization. XRD and DSC analysis reviewed the partial destruction of crystal structure and the decline of β-crystal phase of EUG during the extraction process. Moreover, the extracted EUG exhibited high tensile strength of 10.360 MPa, excellent elongation at break of 78.663 % ascribed to the unique crystallinity that enhanced the flexibility of molecular chains. In addition, the recycling performance of DES and petroleum ether was verified, and the recovery rate were up to 94.04 % and 82.60 %, respectively, indicating that this method is expected to replace the traditional pretreatment method for extracting EUG.
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| http://dx.doi.org/10.1016/j.ijbiomac.2024.138056 | DOI Listing |
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