Potential and prospects for utilization of avocado by-products in integrated biorefineries

[Display omitted] •Avocado residues’ biorefineries are tackled in this review.•Eco-friendly processing of avocado wastes as key to obtain valuable products.•A novel biorefinery strategy for the integral valorization of avocado residues.•Technical and economic feasibility of avocado biorefineries was discussed.•Hurdles to overcome for multiproduct avocado biorefinery within bioeconomy concept. The industrial processing of avocado to extract oil, and produce guacamole or sauces generates enormous quantities of peels and seeds (around 2 million tons worldwide in 2019) without commercially valuable applications. However, various studies have suggested the presence of a wide range of interesting compounds in the composition of these by-products. This review depicts a thorough outline of the capacity of avocado residues to be converted into a portfolio of commodities that can be employed in sectors such as the food, cosmetics, pharmaceuticals, environment, and energy industries. Therefore, a novel biorefinery strategy to valorize avocado-processing residues to obtain a polyphenolic extract, pectooligosaccharides, and succinic acid was presented. Additionally, the prospects and challenges facing a biorefinery based on the valorization of avocado residues are presented, particularly its techno-economic feasibility on an industrial scale, aiming for a resource-efficient circular bio-economy.