College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, P. R. China.
Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, P. R. China.
J Sep Sci. 2024 Feb;47(4):e2300811. doi: 10.1002/jssc.202300811.
In this work, surface molecularly imprinted polymers based on magnetic multi-walled carbon nanotubes were prepared for the specific recognition and adsorption of resveratrol. The functionalization of magnetic multi-walled carbon nanotubes and the synthesis process of surface molecularly imprinted polymers were optimized. Characterizations were performed to demonstrate the successful synthesis of the imprinted materials. The imprinted materials showed satisfactory adsorption capacity of resveratrol (45.73 ± 1.72 mg/g) and excellent selectivity (imprinting factor 2.89 ± 0.15). In addition, the imprinted materials were used as adsorbents in molecularly imprinted solid-phase extraction for the purification of resveratrol from crude extracts of some food and medicinal resources, achieving recoveries of 93.69%-95.53% with high purities of 88.37%-92.33%. Moreover, the purified products exhibited extremely strong free radical scavenging activity compared with crude extracts. Overall, this work provided a promising approach for the highly selective purification of resveratrol from natural resources, which would contribute to the application of this valuable compound in the food/nutraceutical fields.
在这项工作中，制备了基于磁性多壁碳纳米管的表面分子印迹聚合物，用于白藜芦醇的特异性识别和吸附。优化了磁性多壁碳纳米管的功能化和表面分子印迹聚合物的合成工艺。对印迹材料的成功合成进行了表征。印迹材料对白藜芦醇表现出令人满意的吸附能力（45.73±1.72mg/g）和优异的选择性（印迹因子 2.89±0.15）。此外，印迹材料被用作分子印迹固相萃取中的吸附剂，从一些食品和药用资源的粗提取物中纯化白藜芦醇，实现了 93.69%-95.53%的回收率和 88.37%-92.33%的高纯度。此外，与粗提取物相比，纯化产物表现出极强的自由基清除活性。总的来说，这项工作为从天然资源中高度选择性地纯化白藜芦醇提供了一种很有前途的方法，这将有助于该有价值化合物在食品/营养领域的应用。
