@misc{10481/93750,
year = {2024},
month = {7},
url = {https://hdl.handle.net/10481/93750},
abstract = {Over the past years, a prolonged drought has affected Spain, raising significant concerns
across various sectors, especially agriculture. This extended period of dry weather is profoundly
affecting the growth and development of olive trees, potentially impacting the quality and quantity
of olive oil produced. This study aims to assess the impact of agronomic factors, i.e., olive maturation
and irrigation management, as well as the technological factors involved in the production process, on
the antioxidant content of Picual virgin olive oil. Mathematical models were developed to maximize
the concentration of polyphenols, orthodiphenols, chlorophylls, carotenes, and tocopherols in olive
oils. Findings indicate that increasing the malaxation temperature from 20 to 60 ◦C and reducing
the mixing time from 60 to 20 min positively influenced the polyphenol and orthodiphenol content.
Although irrigation did not significantly affect the polyphenols, pigments, and α-tocopherol contents,
it may enhance the β- and γ-tocopherol content. Optimal conditions for producing antioxidantenriched
virgin olive oils involved olives from rainfed crops, with a moisture index of 3–4, and
a 60-min malaxation process at 60 ◦C. Under these conditions, the total phenol content doubled,
pigment content increased fourfold, and α-tocopherol content rose by 15%. These findings provide
relevant knowledge to interpret the year-to-year variation in both organoleptic and analytical profiles
of virgin olive oils.},
organization = {Juan de la Cierva Fellowship (FJC2021-048044-I, funded byMCIN/AEI/
10.13039/501100011033 and the EU “NextGenerationEU/PRTR”)},
publisher = {MDPI},
keywords = {malaxation},
keywords = {response surface methodology},
keywords = {virgin olive oil},
title = {Maximizing Antioxidant Potential in Picual Virgin Olive Oil: Tailoring Agronomic and Technological Factors with Response Surface Methodology},
doi = {10.3390/foods13132093},
author = {de Torres, Antonia and Espínola Lozano, Francisco and Moya Vilar, Manuel and Cara Corpas, Cristóbal and Vidal, Alfonso M. and Pérez Huertas, Salvador},
}