Study of the quality of virgin olive oil from Aragón (Spain)

Authors

  • C. Pérez-Arquillué Unidad de Bromatología, Facultad de Veterinaria (Universidad de Zaragoza)
  • T. Juan Instituto Tecnológico de Aragón
  • N. Valero Instituto Tecnológico de Aragón
  • G. Estopañan Instituto Tecnológico de Aragón
  • A. Ariño Unidad de Bromatología, Facultad de Veterinaria (Universidad de Zaragoza)
  • P. Conchello Unidad de Bromatología, Facultad de Veterinaria (Universidad de Zaragoza)
  • A. Herrera Unidad de Bromatología, Facultad de Veterinaria (Universidad de Zaragoza)

DOI:

https://doi.org/10.3989/gya.2003.v54.i2.258

Keywords:

Arbequina, Empeltre, Fatty acids, Free acidity, K232, K270, Oxidative stability, Peroxide value, Phenolic compounds, Virgin olive oil (characterization)

Abstract


The chemical composition of virgin olive oils (95 samples) from Aragón (Spain) from two successive crop seasons (1997/98 and 1998/99) and its relationship with quality and oxidative stability is examined. The main characteristics were: free acidity 0.5 (% oleic acid), peroxide value 11.8 meq/kg, K232 1.92, K270 0.13, oxidative stability 51.4 h (Rancimat method), and antioxidant phenolic substances 168.5 mg/kg (as caffeic acid). From the distribution of fatty acids, a high percentage of linoleic acid (9.46 %) and a low level of stearic (2.10 %) and arachidic (0.36 %) acids, is worth noting. The effect of sample origin (7 productive regions from Aragón), olive variety (Empeltre and Arbequina), and the different steps through processing are also investigated. However, the major factor affecting results was the plague of olive flies during 1997/98 crop season.

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Published

2003-06-30

How to Cite

1.
Pérez-Arquillué C, Juan T, Valero N, Estopañan G, Ariño A, Conchello P, Herrera A. Study of the quality of virgin olive oil from Aragón (Spain). grasasaceites [Internet]. 2003Jun.30 [cited 2021May11];54(2):151-60. Available from: http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/258

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Section

Research