Filtration of extra virgin olive oil is a process that may improve preservation of the quality during storage. In the current study, different aliquots of extra virgin olive oils were subjected to filtration with a traditional filter press or an innovative patented alternative process of clarification by insufflating inert gas such as nitrogen and argon; all treated samples and, as control unfiltered ones, were stored for one year to evaluate the effects of these technologies on the quality of oil during shelf-life. Basic quality indexes, diglycerides, phenolics and volatiles, as well as the sensory characteristics of samples, were determined at 4 month intervals during storage. According to the volatile compounds, phenolics and sensory analysis, the novel technique had a beneficial effect on the storage of extra virgin olive oils; accordingly, this process could be exploited by the olive oil industry.
Valli, E., Ayyad, Z., Garcia-Salas, P., Cevoli, C., Afaneh, I.A., Bendini, A., et al. (2019). Influence of an innovative and promising gas clarification process on the quality of stored extra virgin olive oils. FOOD RESEARCH INTERNATIONAL, 116, 30-36 [10.1016/j.foodres.2018.12.050].
Influence of an innovative and promising gas clarification process on the quality of stored extra virgin olive oils
Valli, Enrico;Ayyad, Ziad;Garcia-Salas, Patricia;Cevoli, Chiara;Bendini, Alessandra
;Gallina Toschi, Tullia
2019
Abstract
Filtration of extra virgin olive oil is a process that may improve preservation of the quality during storage. In the current study, different aliquots of extra virgin olive oils were subjected to filtration with a traditional filter press or an innovative patented alternative process of clarification by insufflating inert gas such as nitrogen and argon; all treated samples and, as control unfiltered ones, were stored for one year to evaluate the effects of these technologies on the quality of oil during shelf-life. Basic quality indexes, diglycerides, phenolics and volatiles, as well as the sensory characteristics of samples, were determined at 4 month intervals during storage. According to the volatile compounds, phenolics and sensory analysis, the novel technique had a beneficial effect on the storage of extra virgin olive oils; accordingly, this process could be exploited by the olive oil industry.File | Dimensione | Formato | |
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