Preliminary investigation of possible effects of mineral clay treatment applied to oils produced from olives: focus on moisture removal and compositional changes

M.  Issaoui; M.  Mosbahi; S.  Barbieri; G.  Flamini; A.  Bendini; R.  Ascrizzi; T.  Gallina Toschi; M.  Hammami

doi:10.3989/gya.1021192

Autores/as

M. Issaoui Lab-NAFS ‘Nutrition - Functional Food & Vascular Health’, Faculty of Medicine, University of Monastir - bDepartement of Biotechnology, Faculty of Science and Technology of SidiBouzid, University of Kairouan https://orcid.org/0000-0002-8866-0606
M. Mosbahi Laboratory of Georessources (code: LR15CERTE01), CERTE https://orcid.org/0000-0002-4265-8252
S. Barbieri Department of Agricultural and Food Sciences (DiSTAL), University of Bologna https://orcid.org/0000-0002-2532-6088
G. Flamini Dipartimento di Farmacia https://orcid.org/0000-0003-2418-9349
A. Bendini Department of Agricultural and Food Sciences (DiSTAL), University of Bologna https://orcid.org/0000-0002-6515-5519
R. Ascrizzi Dipartimento di Farmacia https://orcid.org/0000-0003-1791-8208
T. Gallina Toschi Department of Agricultural and Food Sciences (DiSTAL), University of Bologna https://orcid.org/0000-0001-7241-2280
M. Hammami Lab-NAFS ‘Nutrition - Functional Food & Vascular Health’, Faculty of Medicine, University of Monastir https://orcid.org/0000-0003-1947-7610

DOI:

https://doi.org/10.3989/gya.1021192

Palabras clave:

Aceite de oliva virgen, Aceptabilidad de los consumidores, Arcilla mineral, Compuestos volátiles, Humedad, Medida colorimétrica, Parámetros de calidad, Pigmentos

Resumen

En este estudio preliminar, dos aceites de oliva vírgenes no filtrados (uno VOO-N recién producido y el otro, VOO-O almacenado durante un año) fueron sometidos a la eliminación del contenido de humedad con arcilla mineral (cruda o activada) y se realizaron análisis para atestiguar posibles efectos sobre la calidad del producto. Los resultados demostraron que el tratamiento del aceite con arcilla mineral, realizado a 36-38 °C, no tuvo consecuencias negativas en los parámetros básicos de calidad y en el perfil de los compuestos volátiles. Por otro lado, se observó una disminución significativa en la cantidad de agua y en los pigmentos en las muestras sometidas a este tipo de tratamiento, en particular con arcilla cruda. Con respecto a la medida del color, luminosidad (L) y aceptabilidad de los consumidores mostraron un aumento notable cuando los aceites se trataron con arcilla cruda.

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