Nutraceutical potentialities of Tunisian Argan oil based on its physicochemical properties and fatty acid content as assessed through Bayesian network analyses

Nutraceutical potentialities of Tunisian Argan oil based on its physicochemical properties and fatty acid content as assessed through Bayesian network analyses

Argan oil is traditionally produced by cold pressing in South-western Morocco where rural population uses it as edible oil as well as for its therapeutic properties which give them in counterpart valuable income. Given the economical interest of this oil, several attempts of fraudulency have been re...

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Bibliographic Details
Published in:Lipids in health and disease Vol. 17; no. 1; p. 138
Main Authors: Hanana, Mohsen, Mezghenni, Hajer, Ben Ayed, Rayda, Ben Dhiab, Ali, Jarradi, Slim, Jamoussi, Bassem, Hamrouni, Lamia
Format: Journal Article
Language:English
Published: England BioMed Central Ltd 15-06-2018
BioMed Central
BMC
Subjects:
Argania spinosa
Bayesian analysis
Bayesian statistical decision theory
Carotenoids
Competitiveness
Cosmeceuticals
Cosmetics
Edible oils
Fatty acids
Food
Fruits
Functional foods & nutraceuticals
Gas chromatography
Linoleic acid
Lipids
Localization
Materia medica, Vegetable
Mathematical models
Molecular weight
Nutraceuticals
Nuts
Petroleum production
Physicochemical properties
Plant extracts
Polyphenols
Potash
Potassium
Seeds
Solvents
Spectrophotometry
United States > US
Tunisia
Polyphenols
Argania spinosa
Carotenoids
Fatty acids
Cosmeceuticals
Nutraceuticals
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Summary:Argan oil is traditionally produced by cold pressing in South-western Morocco where rural population uses it as edible oil as well as for its therapeutic properties which give them in counterpart valuable income. Given the economical interest of this oil, several attempts of fraudulency have been registered in the world global market leading to loss of authenticity. Our purpose is to launch a program of Tunisian Argan oil valorization since trees from this species have been introduced sixty years ago in Tunisia. The first step was thus to characterize the physicochemical properties and determine the chemical composition of Tunisian Argan oil in order to assess its quality. Physicochemical parameters of oil quality were determined according to the international standard protocols. Fatty acid content analysis of Argan oils was performed by gas chromatography coupled to mass spectrophotometry. A comparative study was realized among Tunisian, Moroccan and Algerian samples differing also by their extraction procedure. The impact of geographical localisation on the fatty acids composition was studied by statistical and modeling Bayesian analyses. Physicochemical parameters analysis showed interestingly that Tunisian Argan oil could be classified as extra virgin oil. Argan oil is mainly composed by unsaturated fatty acids (80%), mainly oleic and linoleic acid (linoleic acid was positively influenced by the geographical localization (r = 0.899, p = 0.038) and the P/S index (r = 0.987, p = 0.002)) followed by saturated fatty acids (20%) with other beneficial compounds from the unsaponifiable fraction like polyphenols and carotenoids. Together with fatty acid content, these minor components are likely to be responsible for its nutraceutical properties and beneficial effects. Tunisian Argan oil displayed valuable qualitative parameters proving its competitiveness in comparison with Moroccan and Algerian oils, and could be therefore considered as extra virgin edible oil for nutraceutical purposes as well as for cosmetic use.
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ISSN:1476-511X
1476-511X
DOI:10.1186/s12944-018-0782-9