title: Olive oil enriched in lycopene from tomato by-product through a co-milling process.
abstract: The aim of this investigation was to produce an olive oil (OO) naturally enriched with antioxidants, recovering carotenoids, in particular lycopene, using an industrial by-product of tomato seeds and skin. For this purpose, a technological process in a low-scale industrial plant to co-mill olives and tomato by-product in de-frosted or freeze-dried forms was applied and studied with respect to control samples. Preliminary results obtained from two different experiments were carried out by 40 kg of cultivar Correggiolo olives and 60 kg of olive blends from different cultivars. In both the experiments, the co-milling showed significant enrichment in carotenoids, especially in lycopene (mean values of 5.4 and 7.2 mg/kg oil from defrosted and freeze-dried by-products, respectively). The experimental results demonstrated the possibility to obtain a new functional food naturally enriched in antioxidant compounds, which might be marketed as "OO dressing enriched in lycopene" or "condiment produced using olives and tomato by-product".
authors.affiliation: Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna , U.O.S. Cesena (FC) , Italy and.
authors.forename: Alessandra
authors.initials: A
authors.lastname: Bendini
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Di Lecce
authors.forename: Enrico
authors.initials: E
authors.lastname: Valli
authors.forename: Sara
authors.initials: S
authors.lastname: Barbieri
authors.forename: Federica
authors.initials: F
authors.lastname: Tesini
authors.forename: Tullia Gallina
authors.initials: TG
authors.lastname: Toschi
mesh_terms: D000975:Antioxidants / Q000737:chemistry; D002338:Carotenoids / Q000737:chemistry*; D005511:Food Handling / Q000379:methods*; D005527:Food, Fortified; D005612:Freeze Drying; D055951:Functional Food; D000077276:Lycopene; D018551:Solanum lycopersicum / Q000737:chemistry*; D031658:Olea / Q000737:chemistry; D000069463:Olive Oil / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry
chemical_list: D000975:Antioxidants; D000069463:Olive Oil; D010938:Plant Oils; D002338:Carotenoids; D000077276:Lycopene
keywords: Antioxidants; co-milling; lycopene; olives; tomato by-product