Interactions between solvent molecules and the reduced or unreduced forms of silico-molybdic acid studied by ESR and NMR spectroscopies and molecular modelling

γ-Cyclodextrin as Inhibitor of the Preci

γ-Cyclodextrin as Inhibitor of the Precipitation Reaction between Berberine and Glycyrrhizin in Decoctions of Natural Medicines: Interaction Studies of Cyclodextrins with Glycyrrhizin and Glycyrrhetic Acid by 1H-NMR Spectroscopy and Molecular-Dynamics Calculation

✍ Miyoko Kamigauchi; Kazuko Kawanishi; Makiko Sugiura; Hirofumi Ohishi; Toshimasa 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 German ⚖ 457 KB

## Abstract To prevent the precipitation reaction between glycyrrhizin (**1**) and berberine (**3**) in the decoctions of __Glycyrrhiza__/__Coptis__ rhizome or __Glycyrrhiza__/__Phellodendron__ bark, the presence of cyclodextrin (CD) in the mixture was proven to be effective. The preventing effect