Singular Olive Oils from a Recently Discovered Spanish North-Western Cultivar: An Exhaustive 3-Year Study of Their Chemical Composition and In-Vitro Antidiabetic Potential
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Figueiredo González, María; Olmo García, Lucía; Serrano García, Irene; Carrasco Pancorbo, AlegríaEditorial
MDPI
Materia
Autochthonous cultivar Virgin olive oil Phenolic compounds Diabetes mellitus alpha-glucosidase inhibition Multivariant chemometric tools
Date
2022-06-23Referencia bibliográfica
Figueiredo-González, M... [et al.]. Singular Olive Oils from a Recently Discovered Spanish North-Western Cultivar: An Exhaustive 3-Year Study of Their Chemical Composition and In-Vitro Antidiabetic Potential. Antioxidants 2022, 11, 1233. [https://doi.org/10.3390/antiox11071233]
Sponsorship
Spanish Government RTI2018-098633-B-I00; FEDER/Junta de Andalucia-Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades P20_00263; FQM-297 research group (Environmental, Biochemical and Nutritional Analytical Control) FEDER/Junta de AndaluciaConsejeria de Economia y Conocimiento B-AGR-416-UGR18; Spanish Government FPU19/00700Abstract
In this work, the quality and physicochemical parameters, phenolic composition, and antidiabetic potential of olive oils obtained from olives belonging to centenarian olive trees of the so-called 'Mansa de Figueiredo' cultivar were evaluated during three consecutive crop seasons (2017-2019). The oils produced during the three crop years were classified as extra virgin based on the quality-related indices, sensory analysis, and the genuineness-related parameters. In addition, LC-ESI-TOF MS was used to get a comprehensive characterisation of the phenolic fraction while LC-ESI-IT MS was applied for quantitation purposes. The content of phenolic compounds (ranging from 1837 to 2434 mg/kg) was significantly affected by the harvest year due to the environmental conditions and ripening index. Furthermore, although significant differences in the inhibitory effects against the alpha-glucosidase enzyme for the EVOOs extracted throughout the three successive years were detected, all the studied EVOOs exhibited a stronger inhibitor effect than that found for acarbose.