title: Extra virgin olive oil bitterness evaluation by sensory and chemical analyses.
abstract: An experimental investigation was performed on blend extra virgin olive oils (EVOOs) from different cultivars and EVOO from different olive monovarieties (Coratina, Leccino, Maiatica, Ogliarola) with the aim to evaluate the possibility of estimating the perceived bitterness intensity by using chemical indices, such as the total phenol content and the compounds responsible for oil bitterness measured spectrophotometrically at 225 nm (K225 value), as bitterness predictors in different EVOO. Therefore, a bitterness predictive model, based on the relationship between the perceived bitterness intensity of the selected stimuli and the chosen chemicals parameters has been built and validated. The results indicated that the oil bitterness intensity could be satisfactorily predicted by using the K225 values of oil samples.
authors.affiliation: Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Favati
authors.forename: Nicola
authors.initials: N
authors.lastname: Condelli
authors.forename: Fernanda
authors.initials: F
authors.lastname: Galgano
authors.forename: Marisa Carmela
authors.initials: MC
authors.lastname: Caruso
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000379:methods*; D006801:Humans; D031658:Olea / Q000737:chemistry*; D000069463:Olive Oil; D010636:Phenols / Q000032:analysis; D010938:Plant Oils / Q000737:chemistry*; D011786:Quality Control; D013649:Taste
chemical_list: D000069463:Olive Oil; D010636:Phenols; D010938:Plant Oils