ABSTRACT
With the increase in agro-industrial processes has increased the generation of low-value by-products or waste, which is generally disposed of inappropriately in landfills or other sites, causing serious environmental damage. These agro-industrial by-products are composed mostly of carbohydrates, proteins, minerals, among others, which could be used to obtain value-added molecules. Therefore, the valorization of these materials becomes a priority, in response to current trends of circular economy that indicate that it is necessary to reuse these by-products, in addition to the economic losses generated by wasting such materials. One of the alternative uses would be to obtain compounds with biological activities of interest such as antioxidants, 250antihypertensives, anticancer, among others, to be introduced in food matrices, which would allow obtaining foods with functional characteristics, extend the useful life of products, improve sensory characteristics, among others. In recent years, research into the processes of obtaining, separating, and purifying high value-added compounds from agro-industrial by-products has gained a special place in the scientific community. However, most extraction processes are based on the use of solvents, which is contrary to current environmental regulations. Therefore, it is necessary to search for and implement alternative technologies that will efficiently obtain these products. The objective of this one is to know the advances in the technologies used for the recovery of compounds and their application in the revaluation of agroindustrial by-products, discussing some technological and economic aspects, and the limitations for the use of these technologies to scales superior to those of laboratory.
