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Composition and organoleptic characteristics of oil from Arbequina olive (Olea europaea L) trees under deficit irrigation

✍ Scribed by M J Tovar; M P Romero; S Alegre; J Girona; M J Motilva

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
207 KB
Volume
82
Category
Article
ISSN
0022-5142

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✦ Synopsis

Abstract

This study evaluated the effects of different regulated deficit irrigation (RDI) strategies applied to olive (Arbequina cultivar) trees on the qualitative and quantitative parameters of the resulting oil during the maximum evaporative demand period for three consecutive crop seasons. Quality indices, fatty acid composition, pigments, colour, α‐tocopherol and phenolic contents, bitter index, oxidative stability and organoleptic properties of the oil were determined. Irrigation did not affect those parameters used as criteria for classifying olive oil in its commercial grades. Only polyphenol and o‐diphenol contents and, consequently, the bitter index and oxidative stability were affected by the RDI strategy, with increasing values as the water applied decreased. Regulated deficit irrigation resulted in important savings in irrigation requirements without detriment to oil quality.

© 2002 Society of Chemical Industry

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