Quality characterization of the new virgin olive oil var. Sikitita by phenols and volatile compounds.

J Agric Food Chem

Instituto de la Grasa, Padre Garcia Tejero 4, Sevilla, Spain.

Published: July 2010

AI Article Synopsis

  • The olive oil industry is seeking new cultivars that can thrive in modern high-density orchards while producing oils with good sensory qualities.
  • This research examines the sensory quality of olive oil, focusing on phenolic compounds and volatile compounds that affect flavor, comparing three cultivars: Picual, Arbequina, and a new hybrid called Sikitita.
  • Analysis revealed that the genetic makeup (cultivar) impacts the oil's phenolic and volatile compositions more significantly than the level of ripeness, with Sikitita displaying similarities to both Arbequina and Picual at different ripeness stages.

Article Abstract

New cultivars with greater adaptability to modern irrigated (super-) high-density orchards and producing good sensory quality oils are highly demanded by an olive oil industry in continuous change. This work analyzes olive oil sensory quality, in terms of phenols and volatiles that are responsible for virgin olive oil flavor, for three cultivars: Picual, which is used for >15% of world olive oil production; Arbequina, which is cultivated worldwide; and the new progeny Sikitita, which is derived from the other two. The availability of data at three different levels of ripeness allowed quantifying the genetic and olive maturity effects on the oil composition by means of the analysis of variance (ANOVA) and principal component analysis (PCA). Phenols and volatiles varied greatly both with genotype and, to a lesser extent, with olive maturity. With regard to the phenol profile, the crossbred cultivar Sikitita showed a higher degree of similarity with the Arbequina variety. The volatile composition of var. Sikitita, however, varies significantly from that of Arbequina, in the first stages of the olive ripeness, and becomes more similar to that of Picual as the level of ripeness increases.

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Source
http://dx.doi.org/10.1021/jf101316dDOI Listing

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