Use of high power ultrasounds in virgin olive oil extraction process. Results at laboratory scale

The effects of high-power ultrasound on olive paste, in a laboratory thermomixing operation for virgin olive oil extraction, have been studied. Indirect sonication in a thermomixer with an ultrasound cleaning bath, at 25 kHz, has been applied. A quick heating of olive paste, to optimal temperature...

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Bibliographic Details
Main Authors: Antonio Jiménez Márquez, Gabriel Beltrán Maza, Marino Uceda Ojeda, María Paz Aguilera Herrera
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2006-09-01
Series:Grasas y Aceites
Subjects:
Online Access:http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/46
Description
Summary:The effects of high-power ultrasound on olive paste, in a laboratory thermomixing operation for virgin olive oil extraction, have been studied. Indirect sonication in a thermomixer with an ultrasound cleaning bath, at 25 kHz, has been applied. A quick heating of olive paste, to optimal temperature conditions and an extractability improvement of the extraction process were found with the sonication of olive paste. The effects of high-power ultrasound on some components of the oil obtained were studied. Free acidity, peroxide value, K270, K232, and bitterness (K225) were determined immediately and 4 months later.
ISSN:0017-3495
1988-4214