Orujo (olive waste)

Alpeorujo is the solid liquid waste generated by the new two-phase method of olive oil extraction.[1]

Orujo is called the wet solid waste,[2] which is generated by the traditional methods of extraction, based on presses, and the continuous three-phase decanting processes. The process generates additionally one stream of olive oil and two streams of wastes, the Orujo and an aqueous waste called alpechín.


  1. ^ Alburquerque, J.; Gonzálvez, J.; García, D.; Cegarra, J. (2003). "Agrochemical characterisation of "alperujo", a solid by-product of the two-phase centrifugation method for olive oil extraction". Bioresource Technology. Centro de Edafologı́a y Biologı́a Aplicada del Segura. 91 (2): 195–200. doi:10.1016/S0960-8524(03)00177-9. PMID 14592750.
  2. ^ Chrysovalantou, Nasioula. "Evaluation of the three-phase and two- phase olive oil extraction method" (PDF). National Technical University of Athens. Retrieved 6 June 2015.