Adsorption of Wine Constituents on Functionalized Surfaces
AbstractThe adsorption of macromolecules on solid surfaces is of great importance in the field of nanotechnology, biomaterials, biotechnological, and food processes. In the field of oenology adsorption of wine macromolecules such as polyphenols, polysaccharides, and proteins is much less desirable on membrane materials because of fouling and reduced filtering performance. On the other hand, adsorption of these molecules on processing aids is very beneficial for achieving wine clarity and stability. In this article, the effect of surface chemical functionalities on the adsorption of white, rosé, and red wine constituents was evaluated. Allylamine, acrylic acid, and ethanol were selected as precursors for plasma polymerization in order to generate coatings rich in amine, carboxyl, and hydroxyl chemical groups, respectively. The surface chemical functionalities were characterized by X-ray photoelectron spectroscopy (XPS) and the ability of different surface chemical functionalities to adsorb wine constituents were characterized by quartz crystal microbalance with dissipation (QCM-D) and atomic force microscopy (AFM). The results demonstrated that the amine and carboxyl modified surfaces encourage adsorption of constituents from white wine. The hydroxyl modified surfaces have the ability to preferentially adsorb rosé wine constituents, whereas red wine adsorbed to the highest extent on acrylic acid surface. View Full-Text
- Supplementary File 1:
Supplementary (PDF, 4077 KB)
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Mierczynska-Vasilev, A.; Smith, P.A. Adsorption of Wine Constituents on Functionalized Surfaces. Molecules 2016, 21, 1394.
Mierczynska-Vasilev A, Smith PA. Adsorption of Wine Constituents on Functionalized Surfaces. Molecules. 2016; 21(10):1394.Chicago/Turabian Style
Mierczynska-Vasilev, Agnieszka; Smith, Paul A. 2016. "Adsorption of Wine Constituents on Functionalized Surfaces." Molecules 21, no. 10: 1394.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.