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Analytical Evaluation and Antioxidant Properties of Some Secondary Metabolites in Northern Italian Mono- and Multi-Varietal Extra Virgin Olive Oils (EVOOs) from Early and Late Harvested Olives.
Int J Mol Sci. 2017 Apr 11; 18(4)IJ

Abstract

The antioxidant activity and the phenolic and α-tocopherol content of 10 Northern Italian mono- and multi-varietal extra virgin olive oils (EVOOs), after early and late olive harvests, was analyzed. A hierarchical cluster analysis was used to evaluate sample similarity. Secoiridoids (SIDs), lignans and flavonoids were the most abundant phenolic compounds identified. The organic Casaliva (among mono-cultivar) and the organic multi-varietal (among blended oils) EVOOs had the higher total phenol content both in early (263.13 and 326.19 mg/kg, respectively) and late harvest (241.88 and 292.34 mg/kg, respectively) conditions. In comparison to late harvest EVOOs, early harvest EVOOs, in particular the organic mono-cultivar Casaliva, showed both higher antioxidant capacity (up to 1285.97 Oxygen Radicals Absorbance Capacity/ORAC units), probably due to the higher SID fraction (54% vs. 40%), and higher α-tocopherol content (up to 280.67 mg/kg). Overall, these results suggest that SIDs and α-tocopherol mainly contribute to antioxidant properties of the studied EVOOs. In light of this, the authors conclude that early harvest, organic mono-cultivar Casaliva EVOO represents the most interesting candidate to explicate healthy effects ascribed to these functional constituents, particularly regarding oxidative stress-related pathologies.

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Authors+Show Affiliations

Trombetta D
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, viale F. Stagno d'Alcontres 31, 98100 Messina, Italy. dtrombetta@unime.it.
Smeriglio A
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, viale F. Stagno d'Alcontres 31, 98100 Messina, Italy. asmeriglio@unime.it. Istituto Superiore di Sanità, Department of Food Safety and Veterinary Public Health, Unit of Food and Veterinary Toxicology, viale Regina Elena 299, 00161 Rome, Italy. asmeriglio@unime.it.
Marcoccia D
Istituto Superiore di Sanità, Department of Food Safety and Veterinary Public Health, Unit of Food and Veterinary Toxicology, viale Regina Elena 299, 00161 Rome, Italy. daniele430@alice.it.
Giofrè SV
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, viale F. Stagno d'Alcontres 31, 98100 Messina, Italy. sgiofre@unime.it.
Toscano G
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, viale F. Stagno d'Alcontres 31, 98100 Messina, Italy. gtoscano@unime.it.
Mazzotti F
Department of Chemistry and Chemical Technologies, University of Calabria, via P. Bucci, Cubo 12/C, 87036 Arcavacata di Rende (Cosenza), Italy. fmazzotti@unical.it.
Giovanazzi A
Rovereto town council, 38068 Rovereto (Trento), Italy. angelo.giovanazzi@gmail.com.
Lorenzetti S
Istituto Superiore di Sanità, Department of Food Safety and Veterinary Public Health, Unit of Food and Veterinary Toxicology, viale Regina Elena 299, 00161 Rome, Italy. stefano.lorenzetti@iss.it.

MeSH

AntioxidantsChromatography, High Pressure LiquidFlavonoidsFood AnalysisIridoidsItalyLignansOleaOlive OilPolyphenolsTime Factorsalpha-Tocopherol

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28398235

Citation

Trombetta, Domenico, et al. "Analytical Evaluation and Antioxidant Properties of some Secondary Metabolites in Northern Italian Mono- and Multi-Varietal Extra Virgin Olive Oils (EVOOs) From Early and Late Harvested Olives." International Journal of Molecular Sciences, vol. 18, no. 4, 2017.
Trombetta D, Smeriglio A, Marcoccia D, et al. Analytical Evaluation and Antioxidant Properties of Some Secondary Metabolites in Northern Italian Mono- and Multi-Varietal Extra Virgin Olive Oils (EVOOs) from Early and Late Harvested Olives. Int J Mol Sci. 2017;18(4).
Trombetta, D., Smeriglio, A., Marcoccia, D., Giofrè, S. V., Toscano, G., Mazzotti, F., Giovanazzi, A., & Lorenzetti, S. (2017). Analytical Evaluation and Antioxidant Properties of Some Secondary Metabolites in Northern Italian Mono- and Multi-Varietal Extra Virgin Olive Oils (EVOOs) from Early and Late Harvested Olives. International Journal of Molecular Sciences, 18(4). https://doi.org/10.3390/ijms18040797
Trombetta D, et al. Analytical Evaluation and Antioxidant Properties of some Secondary Metabolites in Northern Italian Mono- and Multi-Varietal Extra Virgin Olive Oils (EVOOs) From Early and Late Harvested Olives. Int J Mol Sci. 2017 Apr 11;18(4) PubMed PMID: 28398235.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Analytical Evaluation and Antioxidant Properties of Some Secondary Metabolites in Northern Italian Mono- and Multi-Varietal Extra Virgin Olive Oils (EVOOs) from Early and Late Harvested Olives. AU - Trombetta,Domenico, AU - Smeriglio,Antonella, AU - Marcoccia,Daniele, AU - Giofrè,Salvatore Vincenzo, AU - Toscano,Giovanni, AU - Mazzotti,Fabio, AU - Giovanazzi,Angelo, AU - Lorenzetti,Stefano, Y1 - 2017/04/11/ PY - 2017/03/22/received PY - 2017/04/03/revised PY - 2017/04/08/accepted PY - 2017/4/12/entrez PY - 2017/4/12/pubmed PY - 2017/6/2/medline KW - antioxidant activity KW - extra virgin olive oil (EVOO) KW - functional food KW - harvest time KW - polyphenols KW - α-tocopherol JF - International journal of molecular sciences JO - Int J Mol Sci VL - 18 IS - 4 N2 - The antioxidant activity and the phenolic and α-tocopherol content of 10 Northern Italian mono- and multi-varietal extra virgin olive oils (EVOOs), after early and late olive harvests, was analyzed. A hierarchical cluster analysis was used to evaluate sample similarity. Secoiridoids (SIDs), lignans and flavonoids were the most abundant phenolic compounds identified. The organic Casaliva (among mono-cultivar) and the organic multi-varietal (among blended oils) EVOOs had the higher total phenol content both in early (263.13 and 326.19 mg/kg, respectively) and late harvest (241.88 and 292.34 mg/kg, respectively) conditions. In comparison to late harvest EVOOs, early harvest EVOOs, in particular the organic mono-cultivar Casaliva, showed both higher antioxidant capacity (up to 1285.97 Oxygen Radicals Absorbance Capacity/ORAC units), probably due to the higher SID fraction (54% vs. 40%), and higher α-tocopherol content (up to 280.67 mg/kg). Overall, these results suggest that SIDs and α-tocopherol mainly contribute to antioxidant properties of the studied EVOOs. In light of this, the authors conclude that early harvest, organic mono-cultivar Casaliva EVOO represents the most interesting candidate to explicate healthy effects ascribed to these functional constituents, particularly regarding oxidative stress-related pathologies. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/28398235/Analytical_Evaluation_and_Antioxidant_Properties_of_Some_Secondary_Metabolites_in_Northern_Italian_Mono__and_Multi_Varietal_Extra_Virgin_Olive_Oils__EVOOs__from_Early_and_Late_Harvested_Olives_ DB - PRIME DP - Unbound Medicine ER -