Fecha de publicación: 03/11/2022 Fuente: Wipo "olive oil" The present invention relates to a method for obtaining an extract rich in phenolic compounds from fresh alpeorujo (semi-solid olive oil byproduct), using acid-based natural deep eutectic solvents (NADES). The invention also relates to the use of the phenolic extract as a nutraceutical, food additive and phytosanitary product, particularly for the treatment of microbial diseases. In addition, the invention relates to alpeorujo extracted for compost and vermicompost, particularly as fertiliser and organic soil conditioner.