一种用于从天然洋葱汁中有效提取和转化槲皮素的中性铜基金属有机框架材料。
A neutral Cu-based MOF for effective quercetin extraction and conversion from natural onion juice.
作者信息
Xiang Rui-Qi, Niu Yan-Fei, Han Jie, Lau Yat-Long, Wu Hai-Hong, Zhao Xiao-Li
机构信息
Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University 3663 North Zhongshan Road Shanghai 200062 P. R. China
School of Science & Technology, The Open University of Hong Kong Kowloon Hong Kong SAR P. R. China.
出版信息
RSC Adv. 2019 Oct 21;9(58):33716-33721. doi: 10.1039/c9ra04551a. eCollection 2019 Oct 18.
We report herein a new microporous neutral three-dimensional (3D) metal-organic framework [Cu(L)(DMF)(HO)]· (1·) composed of copper paddle-wheel and flexible tetracarboxylic acid linkers (DMF = ,-dimethylformamide, HL = tetrakis[(6-carboxynaphthoxy)methyl]methane). Surprisingly, this MOF with neutral cavities can not only extract pure quercetin (QT) but also convert it into Cu-QT during the desorption process. It has been well characterized by UV-vis, IR, ESI-MS and TEM-EDS studies. Moreover, it can efficiently extract natural product QT from fresh QT-rich onion juice and rapidly convert it into Cu-QT with a relatively high conversion rate.
我们在此报告一种新型的微孔中性三维（3D）金属有机框架[Cu(L)(DMF)(HO)]·(1·)，它由铜桨轮和柔性四羧酸连接体组成（DMF = N,N-二甲基甲酰胺，HL = 四[(6-羧基萘氧基)甲基]甲烷）。令人惊讶的是，这种具有中性空腔的金属有机框架不仅能够提取纯槲皮素（QT），而且在解吸过程中还能将其转化为铜-槲皮素。通过紫外可见光谱、红外光谱、电喷雾电离质谱和透射电子显微镜-能谱分析研究对其进行了充分表征。此外，它能够从富含新鲜QT的洋葱汁中高效提取天然产物QT，并以相对较高的转化率迅速将其转化为铜-槲皮素。
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