Protoreactor®: The innovative tool to reduce processing time, increasing phenols extraction and producing a desirable extra virgin olive oil

Michele Balzano, Deborah Pacetti, Gennaro Pieralisi, Natale G. Frega

Abstract


The aim of a modern olive oil mill is to allow fast processing time, preserving high yield and quality.  High olive quantities are hardly managed by industrial mill, thus the great dimension of the plants allows an apparently fast extraction, the oil produced is often affected by off flavor.  These defects are strictly related to the prolonged processing time and extended high temperature, especially in the malaxer.  In this contest fast preheating after crushing can represent an interesting tool preserving without altering extra virgin oil quality.  For this purpose a new machinery, protoreactor® market edition, at two different temperatures coupled with different malaxation settings was evaluated.  Legal parameters, total phenols, oxidative stability, spectrophotometric constants and panel test were evaluated at time zero and during 1 year of storage.  New machine was able to reduce processing time, maintaining good yield and high quality oil.  As such, the protoreactor® exerted an interesting extraction activity as concerns phenols compounds.  In particular, protoreactor® set to 36 °C allowed to reduce the malaxation time till a fast passage ensuring a good oil yield, high phenols extraction and consequently excellent oxidative stability during evaluation period.  For these reasons Protoreactor® could represent an useful tools for the operators of the olive oil sector.


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References


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MAYFEB Journal of Agricultural Science
Toronto, Ontario, Canada
MAYFEB TECHNOLOGY DEVELOPMENT
ISSN 2371-512X