Olive oil quality and ripening in super-high-density Arbequina orchard

Autor: Benito, Marta, Lasa Dolhagaray, José Manuel, Gracia Gimeno, María Pilar, Oria, Rosa, Abenoza, María, Varona, Luis, Sánchez-Gimeno, Ana Cristina
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
instname
ISSN: 1097-0010
Popis: 41 Pags., 10 Tabls., 5 Figs. The definitive version is available at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-0010
Background The aim of this work was to evaluate the evolution of the quality of extra virgin olive oil obtained from a super-high-density Arbequina orchard, under a drip irrigation system, throughout the ripening process. For this objective, physicochemical, nutritional and sensory parameters were studied. In addition, the oxidative stability, pigment content and colour evolution of olive oil were analysed during the ripening process. Results Free acidity increased slightly throughout the ripening process, while peroxide value and extinction coefficient decreased. Total phenol content and oxidative stability showed a similar trend, increasing at the beginning of ripening up to a maximum and thereafter decreasing. α-Tocopherol and pigment contents decreased with ripening, leading to changes in colour coordinates. Sensory parameters were correlated with total phenol content, following a similar trend throughout the maturation process. Conclusion By sampling and monitoring the ripeness index weekly, it would be possible to determine an optimal harvesting time for olives according to the industrial yield and the physicochemical, nutritional and sensory properties of the olive oil.
This work was made possible by a predoctoral fellowship awarded to Marta Benito and the PI 170/09 project given by the Aragon government.
Databáze: OpenAIRE
Externí odkaz: