Olive oil characterization of cv. ‘Arauco’ harvested at different times in areas with early frost in Mendoza, Argentina

Abstract

BACKGROUND ‘Arauco’ is the only autochthonous olive cultivar from Argentina. Little has been reported so far regarding the management of this crop. In this work, variations in fruit and chemical characteristics of olives harvested over a wide range of dates and seasons are reported for this cultivar at two sites in Mendoza province in central west Argentina. RESULTS During the harvest periods studied, fruit oil content on a dry basis remained at its maximum and was stable, but fruit oil content on fresh basis increased as water content decreased with delay in harvest date. Harvest date affected the maturity index of fruits as well as the oxidative stability and phenolic content of oil. In contrast, the fatty acid profile was not consistently affected by harvest date. Environmental conditions, mainly the occurrence and intensity of frosts, strongly influenced oil quality as well as maturity with delay in harvest date. CONCLUSION The most appropriate harvest time to obtain Arauco oil with a high oil yield and good chemical quality was before mid‐May and with maturity index lower than 2. Fruits harvested after mid‐May were exposed to minimum temperatures between −1.2 °C and − 4.0 °C, producing oil with low phenolic compounds and oxidative stability. © 2019 Society of Chemical Industry

Study of the olive β‐glucosidase gene family putatively involved in the synthesis of phenolic compounds of virgin olive oil

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Conventional and Ultra-fast Analysis Exposing the Harvest Date Impact on Lebanese Olive Oil: The Soury Variety

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