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- Preparation of molecularly imprinted polymers with boronate affinity and their application for the valorization of winemaking residuesPublication . Chouari, Ilyes; Dias, RolandoIn recent years, there has been growing interest in finding innovative and sustainable solutions for managing agricultural and food industry waste products. Winemaking, a prominent sector of the food and beverage industry, generates substantial residues and byproducts that often pose disposal challenges. These residues, including grape skins, seeds, and pomace, contain valuable components such as polyphenols, tannins, and organic acids, which, if properly extracted and utilized, could lead to economic and environmental benefits. This study explores a novel approach to address this challenge by employing molecularly imprinted polymers (MIPs) with boronate affinity for the selective extraction and separation of these valuable compounds from winemaking residues. MIPs are synthetic polymers designed to exhibit selective binding capabilities towards specific target molecules. The choice of boronate-based templates in the MIP synthesis process is crucial, as boronate functional groups have shown remarkable affinity for polyphenolic compounds, which are abundant in winemaking residues. The preparation of MIPs involves the polymerization of functional monomers in the presence of a template molecule, forming cavities in the polymer matrix that are complementary in shape and chemical functionality to the target compound. Subsequent removal of the template leaves behind imprinted sites that specifically recognize and bind the desired molecules. The MIPs developed in this study demonstrate a high degree of selectivity and affinity for polyphenols, tannins, and organic acids commonly found in winemaking residues. This selective binding property enables efficient extraction and separation of these valuable components from the complex matrix of winemaking waste. The process of using MIPs to recover these compounds not only contributes to the valorization of winemaking residues but also aligns with the principles of green chemistry by reducing waste generation and minimizing the use of hazardous chemicals. The valorization of winemaking residues through MIP-based extraction processes offers numerous potential applications. Polyphenols extracted from these residues can find use in the food and beverage industry as natural antioxidants, colorants, and flavor enhancers. Additionally, tannins extracted from grape seeds can be employed in the tanning industry, while organic acids can be repurposed for various industrial applications, including pharmaceuticals and cosmetics. Furthermore, the utilization of MIPs in winemaking residue valorization contributes to the sustainability of the wine industry, reducing its environmental footprint by diverting waste from landfills and incineration. The recovered valuable compounds can generate additional revenue streams for wineries, thereby improving economic viability. Moreover, this approach aligns with global sustainability initiatives by promoting circular economy practices and reducing the environmental impact associated with waste disposal. In conclusion, the development and application of boronate-affinity MIPs for the valorization of winemaking residues represent a promising and sustainable approach to address waste management challenges in the wine industry. This innovative strategy enables the efficient extraction and separation of valuable components from winemaking waste, creating opportunities for economic gains and environmental benefits. The integration of MIP technology in the valorization of agricultural and food industry byproducts underscores the importance of research-driven solutions in advancing sustainable practices across various sectors. This expanded abstract highlights the significance and potential impact of the study, providing a comprehensive overview of the research's objectives, methods, and potential applications