By Enzo Perri
At present the olive oil industry produces large amounts of secondary products once considered waste or by-products. Very recently, we presented, for the first time, a new interesting olive by-product named “dried destoned virgin olive pomace” (DDVOP), produced by the pomace oil industry. The production of DDVOP was possible thanks to the use of a new system that differs from the traditional ones for having the dryer set at lower temperature value, 350 °C, instead of 550 °C, and for avoiding the solvent extraction phase. In order to evaluate if DDVOP may be suitable as a new innovative feeding integrator for animal feed, its chemical characteristics were investigated. Results demonstrated that DDVOP is a good source of raw protein and precious fiber; rich in phenols (6156 mg/kg o total phenols), oleic (72.29 %) and linoleic (8.37 %) acids. A feeding trial was, therefore, carried out on sheep with the scope of investigating the influence of the diet on the quality of milks obtained from sheep fed with DDVOP-enriched feed. Milks resulted enriched in polyunsaturated (0.21%) and unsaturated (2.42%) fatty acids; increased in phenols (10.35 mg/kg) and tocopherols (1.03 mg/kg).
Cinzia Benincasa, Massimiliano Pellegrino, Lucia Veltri, Salvatore Claps, Carmelo Fallara and Enzo Perri*, 2021, Dried Destoned Virgin Olive Pomace: a Surprising and Promising New By-product from Pomace Extraction Process, Molecules, 2021, 26, 4337. https://doi.org/10.3390/molecules26144337.
Enzo Perri. Director of Research center for olive, citrus and fruit crops of Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria (CREA).
See more about his curriculum here