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A neutral Cu-based MOF for effective quercetin extraction and conversion from natural onion juice

  • Rui Qi Xiang
  • , Yan Fei Niu
  • , Jie Han
  • , Yat Long Lau
  • , Hai Hong Wu
  • , Xiao Li Zhao

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

We report herein a new microporous neutral three-dimensional (3D) metal-organic framework [Cu2(L)(DMF)(H2O)]·guest (1·guest) composed of copper paddle-wheel and flexible tetracarboxylic acid linkers (DMF = N,N-dimethylformamide, H4L = 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.

Original languageEnglish
Pages (from-to)33716-33721
Number of pages6
JournalRSC Advances
Volume9
Issue number58
DOIs
Publication statusPublished - 2019

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