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Efficiency of Hybrid Process of Coagulation/Flocculation Followed by Membrane Filtration for the Treatment of Synthetic Vegetable Oil Refinery Wastewater Read chapter Read first chapter

2021 | OriginalPaper | Chapter

Pollinator Impact on the Sterolic and the Triterpenic Dialcohol Composition of Virgin Olive Oils (VOOs) from Southern Tunisia Autochthonous Varieties

Authors : Imen Oueslati, Hédia Manai-Djebali, Fawzia Mahjoub Haddeda, Jacinto Sánchez-Casasc, Xavier Fernandez

Published in: Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition)

Publisher: Springer International Publishing

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Abstract

The aim of this work was to first, study the chemical characteristics of virgin olive oils produced by two varieties grown in southern Tunisia, and second to compare with the olive oil of their pollinator. The sterols and triterpenic dialcohols compositions of all the samples lay within the established regulatory limits. The main sterols found were β-sitosterol, Δ5-avenasterol, and campesterol. The amounts of minor sterols (24-methylene cholesterol, Δ7-avenasterol, and Δ7-stigmastenol) varied widely according to the varieties. The levels of erythrodiol and uvaol were below the upper legal limit of 4.5% in all analyzed samples. The lipoxygenase products were the major components in only some varieties. The results showed that the pollinator has no effect on the chemical composition of the olive oil of the autochthonous varieties.

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previous chapter Olive Mill Wastes in the Mediterranean: An Initial Assessment of Organic Matter and Nutrients of Agricultural Value
next chapter Importance of Phytosterols in the Classification of Tunisian Olive Cultivars: Discrimination Between Varieties, Hybrids and Oleasters
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Metadata
Title
Pollinator Impact on the Sterolic and the Triterpenic Dialcohol Composition of Virgin Olive Oils (VOOs) from Southern Tunisia Autochthonous Varieties
Authors
Imen Oueslati
Hédia Manai-Djebali
Fawzia Mahjoub Haddeda
Jacinto Sánchez-Casasc
Xavier Fernandez
Copyright Year
2021
Book
Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition)

Print ISBN: 978-3-030-51209-5

Electronic ISBN: 978-3-030-51210-1

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-3-030-51210-1_173