Authenticity in Olive Oils from an Empeltre Clonal Selection in Aragon (Spain): How Environmental, Agronomic, and Genetic Factors Affect Sterol Composition

Rey-Giménez, Raquel ; Sánchez-Gimeno, Ana Cristina (Universidad de Zaragoza)

Resumen: Sterol composition is used as a “fingerprint” to demonstrate the authenticity of olive oils. Our study’s objective was to exhaustively characterize the sterol composition of Empeltre olive oils from clonal selection during the ripening period in 2017, 2018, and 2019. We likewise assessed the influence of crop year, fruit ripening, and clonal selection on the oils’ regulatory compliance in terms of sterol composition. Empeltre olive oils were shown to have medium-range β-sitosterol and Δ5-avenasterol content, along with elevated amounts of campesterol and Δ7-stigmastenol. A total of 26% and 12% of the samples were non-compliant in terms of apparent β-sitosterol and Δ7-stigmastenol, respectively. Crop year was the most influential factor in the case of most sterols. Clone type was the least influential factor, except in the case of campesterol. Olive maturity was only significant for Δ7-sterols. We likewise applied a discriminant analysis, with “crop year” as the grouping variable: 94.9% of the oils were thereby classified correctly.

Idioma: Inglés

DOI: 10.3390/foods11172587

Año: 2022

Publicado en: Foods 11, 17 (2022), 2587 [20 pp.]
ISSN: 2304-8158

Factor impacto JCR: 5.2 (2022)

Categ. JCR: FOOD SCIENCE & TECHNOLOGY rank: 34 / 142 = 0.239 (2022) - Q1 - T1

Factor impacto CITESCORE: 5.8 - Agricultural and Biological Sciences (Q1) - Immunology and Microbiology (Q2) - Health Professions (Q1) - Social Sciences (Q1)

Factor impacto SCIMAGO: 0.771 - Food Science (Q1) - Health Professions (miscellaneous) (Q1) - Plant Science (Q1) - Microbiology (Q2) - Health (social science) (Q2)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Tecnología de Alimentos (Dpto. Produc.Animal Cienc.Ali.)