Fac-simile Scheda Linee di Ricerca - Federalimentare

Dati pubblicati inerenti il tema di ricerca:1. Gambacorta G., Previtali M.A., Pati S., Baiano A., La Notte E. 2006. “Characterization of thephenolic profiles of some monovarietal extra virgin olive oils of Southern Italy”. XXIII InternationalConference on Polyphenols. Winnipeg, Manitoba, 393-394.The phenolic fraction of monovarietal extra virgin olive oils from cultivar grown in two experimental fields ofCerignola and Torremaggiore (Foggia, Italy) were assessed. The obtained results showed a great variability inphenolic profiles and content. Among cultivars grown in Cerignola, Casaliva had the highest phenolic concentration(about 360 mg/kg) whereas, among those grown in Torremaggiore, the highest phenolic content was detectedin Coratina ( about 440 mg/kg). Dialdehydic forms of elenolic acid bonded to tyrosol (p-HPEA-EDA),hydroxytyrosol and pinoresinol were the most abundant phenols identified in the oils from Cerignola, whereaspinoresinol and p-HPEA-EDA were the most abundant phenols in those derived from cultivars grown in Torremaggiorearea.2. Gambacorta G., Baiano A., Previtali M.A., Terracone C., La Notte E. “Shelf life of somemonovarietal extra virgin olive oils”. 3 rd Shelf Life International Meeting. Ischia, 25-27 June2008, in press.The shelf life of monovarietal extra virgin olive oils from some cultivars grown in an experimental field ofDaunia (Foggia, Italy) was studied. The following quality indices were considered during 12 months of storage:acidity, PV, K 232 and K 270 , total phenol content and antioxidant activity. Results showed that all samples belongedto the category of “extra virgin”. The only exception was represented by Peranzana oil whose acidity exceededthe limits after 12 months from production. Phenolic content decreased due to their reactivity with lipidradicals formed during storage and, consequently, also antioxidant activity decreased.SISTAL - SOCIETA’ ITALIANA DI SCIENZE E TECNOLOGIE ALIMENTARIDipartimento di Scienze e Tecnologie Agroalimentari, Università degli Studi della TusciaVia San Camillo de Lellis, 01100 ViterboTel.: 0761- 35 74 94/7 , Fax: 0761- 35 74 98, e-mail: mmoresi@unitus.it136