AAgriculture4/24/2026

Winery By-Products as Sustainable Sources of Proteins and Bioactive Peptides: Characterisation, Extraction and Potential Applications Under the EU Regulatory Framework

The global wine industry generates approximately 20 million tonnes of organic residues annually, representing a significant environmental and management challenge. While phenolic compounds from winery by-products have been extensively studied, protein and peptide fractions remain underutilised. This review provides a systematic overview of proteins derived from major winery side streams, including grapevine leaves, stems, pomace, seeds, and wine lees, with emphasis on their characterisation and