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Molecules (Basel, Switzerland)
May 18, 2020;25 (10):

New Strategies in the Cultivation of Olive Trees and Repercussions on the Nutritional Value of the Extra Virgin Olive Oil.

Irene Dini, Giulia Graziani, Anna Gaspari, Francesca Luisa Fedele, Andrea Sicari, Francesco Vinale, Pierpaolo Cavallo, Matteo Lorito, Alberto Ritieni
Author Information
  1. Irene Dini: Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80141 Napoli, Italy. ORCID
  2. Giulia Graziani: Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80141 Napoli, Italy. ORCID
  3. Anna Gaspari: Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80141 Napoli, Italy.
  4. Francesca Luisa Fedele: LINFA SCARL. Via Zona Industriale Porto San Salvo, 89900 Vibo Valentia, Italy.
  5. Andrea Sicari: LINFA SCARL. Via Zona Industriale Porto San Salvo, 89900 Vibo Valentia, Italy.
  6. Francesco Vinale: Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Via Federico Delpino 1, 80137 Napoli, Italy.
  7. Pierpaolo Cavallo: Department of Physics, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy. ORCID
  8. Matteo Lorito: Institute for Sustainable Plant Protection, National Research Council, Via Università 133, 80055 Portici (NA), Italy.
  9. Alberto Ritieni: Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80141 Napoli, Italy. ORCID
PMID: 32443449 DOI: 10.3390/molecules25102345

Abstract

The health advantages of extra-virgin olive oil (EVOO) are ascribed mainly to the antioxidant ability of the phenolic compounds. Secoiridoids, hydroxytyrosol, tyrosol, phenolic acid, and flavones, are the main nutraceutical substances of EVOO. Applications of beneficial microbes and/or their metabolites impact the plant metabolome. In this study the effects of application of selected strains or their effectors (secondary metabolites) on the phenolic compounds content and antioxidant potential of the EVOOs have been evaluated. For this purpose, (strain GV41) and (strain T22), well-known biocontrol agents, and two their metabolites harzianic acid (HA) and 6-pentyl-α-pyrone (6PP) were been used to treat plants of Leccino and Carolea. Then the nutraceutical potential of EVOO was evaluated. Total phenolic content was estimated by Folin-Ciocalteau's assay, metabolic profile by High-Resolution Mass spectroscopy (HRMS-Orbitrap), and antioxidant activity by DPPH and ABTS assays. Our results showed that in the cultivation of the olive tree, T22 and its metabolites improve the nutraceutical value of the EVOOs modulating the phenolic profile and improving antioxidants activity.

Keywords

EVOO HRMS-Orbitrap Trichoderma spp. antioxidant activity phenolic content phenolic identification secondary metabolites

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Grants

  1. Bioagro NR. onc3-003189/POR FESR Campania 2014-2020
  2. Linfa 03PE_00026_1/MIUR-PON

MeSH Term

Antioxidants
Dietary Supplements
Hypocreales
Nutritive Value
Olea
Olive Oil
Phenols
Polyphenols

Chemicals

Antioxidants
Olive Oil
Phenols
Polyphenols
Journal Article
Article has an altmetric score of 10

Word Cloud

Created with Highcharts 10.0.0phenolicmetabolitesEVOOantioxidantnutraceuticalcontentactivityolivecompoundsacidsecondarypotentialEVOOsevaluatedstrainT22profileHRMS-OrbitrapOlivehealthadvantagesextra-virginoilascribedmainlyabilitySecoiridoidshydroxytyrosoltyrosolflavonesmainsubstancesApplicationsbeneficialmicrobesand/orimpactplantmetabolomestudyeffectsapplicationselectedstrainseffectorspurposeGV41well-knownbiocontrolagentstwoharzianicHA6-pentyl-α-pyrone6PPusedtreatplantsLeccinoCaroleaTotalestimatedFolin-Ciocalteau'sassaymetabolicHigh-ResolutionMassspectroscopyDPPHABTSassaysresultsshowedcultivationtreeimprovevaluemodulatingimprovingantioxidantsNewStrategiesCultivationTreesRepercussionsNutritionalValueExtraVirginOilTrichodermasppidentification

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