Abstract
The effect of location of fruit in canopies of hedgerow olive trees (Olea europaea L., cv. ‘Arbequina’) on quality of virgin oil was tested by analyzing oils extracted from different height layers and faces of nine olive hedgerows (6 North–South oriented and 3 East–West). Although sensory attributes were not different, other oil quality parameters may be significantly modified by fruit position. Oils extracted from fruits harvested from higher layers exhibited significantly higher stability against oxidation, along with higher palmitic acid, linoleic acid and phenol contents, but lower oleic acid content. Oils extracted from fruits harvested from East and North facing hedgerows oriented North–South and East–West, respectively, exhibited higher oleic contents and lower saturated and polyunsaturated fatty acid contents. The mean phenol content of oils extracted from fruits from a North–South oriented hedgerow was significantly greater from one of the East–West oriented hedgerows. These findings may be relevant for the design of future olive hedgerows destined for olive oil production.
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Acknowledgments
We gratefully acknowledge Jacinto Cabetas from El Carpio de Tajo, Antonio Capitán from Écija, Agrícola La Veguilla from Puebla de Montalbán for access to the olive orchards where this research was conducted and Maximiliano Arteaga (from ARCO), Ignacio San Juan and Esther Alonso (from official panel test of Comunidad de Madrid) for oil testing and Ana Centeno, Angela Rodríguez, Beatriz Somoza, Enrique Vivas, Mercedes Ortí for helping in olive collection and oil extraction and Javier García for statistical analysis. This research was supported by the Universidad Politécnica de Madrid and the Comunidad de Madrid (Project M0800204112).
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Gómez-del-Campo, M., García, J.M. Canopy Fruit Location Can Affect Olive Oil Quality in ‘Arbequina’ Hedgerow Orchards. J Am Oil Chem Soc 89, 123–133 (2012). https://doi.org/10.1007/s11746-011-1900-2
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DOI: https://doi.org/10.1007/s11746-011-1900-2