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IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Molecularly imprinted polymers: an innovative strategy for harvesting polyphenoles from grape seed extracts

Molecularly imprinted polymers: an innovative strategy for harvesting polyphenoles from grape seed extracts


Multiple sclerosis (MS) is a multifactorial autoimmune disease associating demyelination and axonal degeneration developing in young adults and affecting 2–3 million people worldwide. Plant polyphenols endowed with many therapeutic benefits associated with anti-inflammatory and antioxidant properties represent highly interesting new potential therapeutic strategies. We recently showed the safety and high efficiency of grape seed extract (GSE), a complex mixture of polyphenolics compounds comprising notably flavonoids and proanthocyanidins, in an experimental autoimmune encephalomyelitis (EAE) mouse model of MS.

We currently investigate molecularly imprinted polymers (MIPs) as a dedicated tool to efficiently extract polyphenols from GSE with high dosage, controlled composition and improved bioavailability. The materials will be tailored such that either a selection of already known and potent polyphenols will be extracted, or more generically, that the majority of GSE containing polyphenols will be extracted in a rather untargeted approach. The same MIPs based on biodegradeable polymers will be used as innovative pharmaceutical formulations / drug delivery matrices packaging the polyphenols extracted from grape by-products, which serve as a resource of bioactive compounds with the distinct circular economic effect of reducing winemaking environmental impact.

Acknowledgements: We would like to thank the International Ambition Pack from La Région Auvergne-Rhône-Alpes for support of this project.

1)  A. Molinelli et al., Advanced Solid Phase Extraction Using Molecularly Imprinted Polymers for the Determination of Quercetin in Red Wine, Journal of Agricultural and Food Chemistry, 50 (7), 1804–1808 (2002), DOI: 10.1021/jf011213q

2)  S. Rajpal et al., An in silico predictive method to select multimonomer combinations for peptide imprinting, J. Mater. Chem. B 10, 6618-6626 (2022), DOI: https://doi.org/10.1039/D2TB00418F

3)  A. Kotyrba et al., Development of Silica Nanoparticle Supported Imprinted Polymers for Selective Lysozyme Recognition, Nanomaterials 11(12), 3287 (2021), DOI: https://doi.org/10.3390/nano11123287


Publication date: October 5, 2023

Issue: ICGWS 2023

Type: Article


Boris Mizaikoff1,2*, Anika Kotyrba1, Mélina Begou2

1Ulm University, Institute of Analytical and Bioanalytical Chemistry, Ulm, Germany
2Hahn-Schickard, Ulm, Germany
3Université Clermont Auvergne, Department of Pharmacology, Clermont, France

Contact the author*


molecularly imprinted polymers, polyphenols, grape seed extract, multiple sclerosis


2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series


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