Sterol profiles of Tunisian virgin olive oils: classification among different cultivars and maturity indexes

The suitability of sterol profiles established by HPLC–MS as a tool to discriminate between seven cultivars of Tunisian virgin olive oils (VOOs) was evaluated in this study. Moreover, some cultivars ( Chemchali, Fouji and Zarrazi ) have been also classified according to their maturity index. A total...

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Bibliographic Details
Published in:European food research & technology 2018-04, Vol.244 (4), p.675-684
Main Authors: Abdallah, Marwa, Vergara-Barberán, María, Lerma-García, María Jesús, Herrero-Martínez, José Manuel, Zarrouk, Mokhtar, Guerfel, Mokhtar, Simó-Alfonso, Ernesto Francisco
Format: Article
Language:English
Subjects:
Agriculture
Analytical Chemistry
Biotechnology
Chemistry
Chemistry and Materials Science
Classification
Cultivars
Discriminant analysis
Food Science
Forestry
High-performance liquid chromatography
Liquid chromatography
Maturity
Olive oil
Original Paper
Sterols
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Summary:The suitability of sterol profiles established by HPLC–MS as a tool to discriminate between seven cultivars of Tunisian virgin olive oils (VOOs) was evaluated in this study. Moreover, some cultivars ( Chemchali, Fouji and Zarrazi ) have been also classified according to their maturity index. A total of nine sterol peaks, which appeared in all samples, were used to develop linear discriminant analysis (LDA) models able to distinguish Tunisian VOOs according to their cultivar or maturity index. An excellent predictive classification was obtained since all samples were correctly classified. Therefore, it has been demonstrated that sterol profiles are a powerful tool to discriminate VOOs coming from different cultivars and maturity indexes.
ISSN:1438-2377
1438-2385
DOI:10.1007/s00217-017-2990-3