Naslov
Performance testing of new artificial olfactory reference materials in virgin olive oil sensory assessment

Autori
Barbieri, Sara ; Aparicio-Ruiz, Ramon ; Brkic Bubola, Karolina ; Bucar-Miklavcic, Milena ; Lacoste, Florence ; Tibet, Ummuhan ; Winkelmann, Ole ; Bendini, Alessandra ; Garcia-Gonzalez, Diego Luis ; Gallina Toschi, Tullia

Izvornik
International Journal of Gastronomy and Food Science (1878-450X) 25 (2021); 100402, 6

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo

Ključne riječi
Virgin olive oil ; Sensory assessment ; Volatile compounds ; RMs for panel training and quality control ; Rancid defect ; Winey-vinegary defect

Sažetak
The use of reference materials for sensory evaluation of virgin olive oils by tasters, panel leaders and trainers represents a fundamental tool to ensure the performance of panel test in meeting regulatory demands and protect the quality of the product. Herein, a procedure for sensory certification of two, recently formulated, artificial olfactory reference materials (RMs) for winey-vinegary and rancid defects of virgin olive oil is presented. A technical protocol, consisting of different steps aimed at evaluating the representativeness of the sensory defect, determining the detection threshold and estimating stability over time, was applied by six sensory panels involved in the H2020 OLEUM project. Considering the results provided by panels (e.g. in terms of percentages of robust coefficient of variation related to median values of perceived intensities of attributes), the procedure can be considered reliable and able to characterize aroma reference materials that appear to be suitable for their intended use according to the international standards. The possible introduction and use of these new RMs to support selection and training of group of assessors and to increase the control and proficiency of sensory panels can improve the effectiveness of the method by offering advantages such as the reproducibility over time and/or the possibility of purchase or self-preparation, thereby overcoming the lack of availability and year-by-year variation of the current oils used as references.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Prehrambena tehnologija

POVEZANOST RADA