Effect of growing region on quality characteristics and phenolic compounds of chemlali extra-virgin olive oils

• Autorzy: Gargouri B. , Ammar S. , Zribi A. , Mansour A. B. , Bouaziz M.
• Języki publikacji: EN

Abstrakty

EN

The present work aims at the characterizing chemlali extra-virgin olive oils from different locations in northern, central and southern Tunisia in terms of their quality indices, fatty acids, sterol content, phenolic composition and sensory profiles to show the classification of oil samples according to the geographical area. The majority of the analytical parameters have presented statistically significant differences (p˂0.05). The main sterols found in all chemlali olive oils were β-sitosterol, ∆-5-avenasterol, campesterol and stigmasterol. The phenolic compounds present in five olive oil samples were analysed by high-performance liquid chromatography (HPLC) method, thus identifying 16 phenolic compounds belonging to different phenolic types. The results have shown no qualitative differences in the phenolic fractions among extra-virgin olive oils from different geographical regions. However, the quantitative differences were observed in a wide number of phenolic compounds. In all studied olive oil samples, secoiridoids were the most abundant, followed by lignans, phenolic alcohols and flavonoids, respectively. Although there is no significant influence on the sensory scores of oils, some slight changes in sensorial profiles were noted: slightly higher intensities of sensory characteristics that are pungent, fruity and bitter in chemlali olive oil from Hammamet and Gafsa.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2013
• Tom: 35
• Numer: 09
• Opis fizyczny: p.2801-2812,fig.,ref.

Twórcy

autor

Gargouri B.

• Laboratoire d’Electrochimie et Environnement, Ecole Nationale d’Inge´nieurs de Sfax, Universite´ de Sfax, BP 1173, 3038 Sfax, Tunisia

autor

Ammar S.

• Laboratoire d’Electrochimie et Environnement, Ecole Nationale d’Inge´nieurs de Sfax, Universite´ de Sfax, BP 1173, 3038 Sfax, Tunisia

autor

Zribi A.

• Laboratoire d’Electrochimie et Environnement, Ecole Nationale d’Inge´nieurs de Sfax, Universite´ de Sfax, BP 1173, 3038 Sfax, Tunisia

autor

Mansour A. B.

• Laboratoire d’Electrochimie et Environnement, Ecole Nationale d’Inge´nieurs de Sfax, Universite´ de Sfax, BP 1173, 3038 Sfax, Tunisia

autor

Bouaziz M.

• Laboratoire d’Electrochimie et Environnement, Ecole Nationale d’Inge´nieurs de Sfax, Universite´ de Sfax, BP 1173, 3038 Sfax, Tunisia

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