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A Combined Approach of NMR and Mass Spectrometry Techniques Applied to the α-Cyclodextrin/Moringin Complex for a Novel Bioactive Formulation †

Abstract : Moringin, obtained via enzymatic conversion of the glucosinolate precursor glucomoringin, is an uncommon member of the isothiocyanate class, and has been proven to possess a broad range of biological activities such as antitumor activity, protection against neurodegenerative disorders and bactericidal effects. Since moringin is weakly soluble in water and unstable in aqueous medium, cyclodextrins (CDs) were considered for the development of a new moringin formulation, with a view to improving its solubility and stability in aqueous solution for use as an anti-inflammatory. A combined structural study using proton nuclear magnetic resonance (1H-NMR), diffusion-ordered spectroscopy (DOSY) and ion mobility mass spectrometry (IM-MS) is reported, highlighting the formation of a 1:1 α-CD/moringin inclusion complex. The association constant K was determined (1300 M−1 at 300 K). Completion of the structural characterization was performed by T-ROESY and MS/MS experiments, which evidenced the mode of penetration of moringin into α-CD. Finally, the “chaperone-like” properties of α-CD with respect to the stability of moringin have been highlighted.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03395850
Contributeur : Florence Djedaïni-Pilard Connectez-vous pour contacter le contributeur
Soumis le : vendredi 22 octobre 2021 - 14:42:32
Dernière modification le : jeudi 25 novembre 2021 - 08:22:29

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David Mathiron, Renato Iori, Serge Pilard, Thangavelu Soundara Rajan, David Landy, et al.. A Combined Approach of NMR and Mass Spectrometry Techniques Applied to the α-Cyclodextrin/Moringin Complex for a Novel Bioactive Formulation †. Molecules, MDPI, 2018, 23 (7), pp.1714. ⟨10.3390/molecules23071714⟩. ⟨hal-03395850⟩

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