Tofanica Bogdan-Marian, Callone Emanuela, Ungureanu Elena, Ungureanu Ovidiu C, Popa Valentin I
"Ion Ionescu de la Brad" Iasi University of Life Sciences, 3 Mihail Sadoveanu Alley, 700490 Iasi, Romania.
"Klaus Müller" Magnetic Resonance Laboratory, Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy.
Polymers (Basel). 2025 Apr 11;17(8):1032. doi: 10.3390/polym17081032.
Solid state Cross-Polarization/Magic-Angle-Spinning C CP/MAS Nuclear Magnetic Resonance (NMR) spectra were obtained for cellulose and α-cellulose isolated from rapeseed stalks. This study provides the first characterization of the rapeseed stalk cellulose, revealing that native cellulose occurs as cellulose I allomorph, while α-cellulose exhibits distinct crystalline structures similar to those found in cellulose II. Additionally, Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), and Energy-Dispersive X-ray Microanalysis (EDX) were employed to further investigate and unveil the structural properties of cellulose extracted from rapeseed stalks. These complementary techniques offered a more comprehensive understanding of the cellulose morphology, crystallinity, and chemical composition, providing valuable insights into the potential utilization of rapeseed stalks as a renewable biomass resource for various industrial applications.
对从油菜秸秆中分离出的纤维素和α-纤维素进行了固态交叉极化/魔角旋转C CP/MAS核磁共振（NMR）光谱分析。本研究首次对油菜秸秆纤维素进行了表征，揭示天然纤维素以纤维素I同质多晶型存在，而α-纤维素呈现出与纤维素II中相似的独特晶体结构。此外，还采用了傅里叶变换红外（FTIR）光谱、扫描电子显微镜（SEM）和能量色散X射线微分析（EDX）进一步研究并揭示从油菜秸秆中提取的纤维素的结构特性。这些互补技术对纤维素的形态、结晶度和化学成分有了更全面的了解，为油菜秸秆作为可再生生物质资源在各种工业应用中的潜在利用提供了有价值的见解。
