Phenolic compounds are secondary metabolites widely distributed in the plant kingdom, valued for their strong antioxidant and antimicrobial properties. These bioactive compounds are promising natural alternatives to artificial preservatives in the food industry, aligning with consumer demand for sustainable solutions that ensure food quality and safety. In this review, the structural complexity of bioactive phenolic compounds, which include their various subclasses and the chemical basis of their antioxidant and antimicrobial activity, is explored. This review examines innovative extraction methods designed to preserve the bioactivity of these compounds. Additionally, it examines their incorporation as natural preservatives, focusing on stability issues and applications in the food sector. The structural diversity of phenolic compounds underpins their broad applications in food preservation. These include antimicrobial and antioxidant properties, which contribute to food safety and offer potential health benefits. The use of agro-industrial biowastes as a sustainable supply of phenolics is a promising approach; however, standardization is necessary to obtain extracts with consistent and effective biological activity. Innovative techniques, such as encapsulation and integration into edible films, are being developed to improve the stability and effectiveness of these compounds, expanding their application in various
food products
