Phenolic Profile and Antioxidant Activity of Italian Monovarietal Extra Virgin Olive Oils.
Antioxidants (Basel). 2019 Jun 05; 8(6)A

Abstract

In the last years, the interest in Italian monovarietal oils has increased due to their specific organoleptic qualities. Extra virgin olive oils (EVOOs) are rich in phenolic compounds, secondary metabolites well known and studied for their nutraceutical properties. However, among EVOOs, there is great variability in phenolic composition due to the origin, the production technique, and mainly, the genotype. The aim of this work was to evaluate the different phenolic profiles and the antioxidant activities of monovarietal oils. The results confirm this variability. In fact, the overall content of oleuropein varies up to four times between the different genotypes (from 33.80 to 152.32 mg/kg oil), while the oleocanthal content is significant only in two oils. The antioxidant activity, determined with 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and oxygen radical absorbance capacity (ORAC) assays, is correlated with the content of total phenolic substances, with half maximal inhibitory concentration (IC50) values for the DPPH test ranging from 160 to 91 mg of oil, while the ORAC test shows values between 5.45 and 8.03 μmol Trolox equivalent (TE)/g oil.

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Authors+Show Affiliations

Negro C

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. carmine.negro@unisalento.it.

Aprile A

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. alessio.aprile@unisalento.it.

Luvisi A

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. andrea.luvisi@unisalento.it.

Nicolì F

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. francesca.nicoli@unisalento.it.

Nutricati E

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. eliana.nutricati@unisalento.it.

Vergine M

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. marzia.vergine@unisalento.it.

Miceli A

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. antonio.miceli@unisalento.it.

Blando F

Institute of Sciences of Food Production (ISPA), National Research Council (CNR), Research Unit of Lecce, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. federica.blando@ispa.cnr.it.

Sabella E

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. erika.sabella@unisalento.it.

De Bellis L

Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy. luigi.debellis@unisalento.it.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31195713

Citation

Negro, Carmine, et al. "Phenolic Profile and Antioxidant Activity of Italian Monovarietal Extra Virgin Olive Oils." Antioxidants (Basel, Switzerland), vol. 8, no. 6, 2019.

Negro C, Aprile A, Luvisi A, et al. Phenolic Profile and Antioxidant Activity of Italian Monovarietal Extra Virgin Olive Oils. Antioxidants (Basel). 2019;8(6).

Negro, C., Aprile, A., Luvisi, A., Nicolì, F., Nutricati, E., Vergine, M., Miceli, A., Blando, F., Sabella, E., & De Bellis, L. (2019). Phenolic Profile and Antioxidant Activity of Italian Monovarietal Extra Virgin Olive Oils. Antioxidants (Basel, Switzerland), 8(6). https://doi.org/10.3390/antiox8060161

Negro C, et al. Phenolic Profile and Antioxidant Activity of Italian Monovarietal Extra Virgin Olive Oils. Antioxidants (Basel). 2019 Jun 5;8(6) PubMed PMID: 31195713.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Phenolic Profile and Antioxidant Activity of Italian Monovarietal Extra Virgin Olive Oils. AU - Negro,Carmine, AU - Aprile,Alessio, AU - Luvisi,Andrea, AU - Nicolì,Francesca, AU - Nutricati,Eliana, AU - Vergine,Marzia, AU - Miceli,Antonio, AU - Blando,Federica, AU - Sabella,Erika, AU - De Bellis,Luigi, Y1 - 2019/06/05/ PY - 2019/05/07/received PY - 2019/05/30/revised PY - 2019/06/04/accepted PY - 2019/6/15/entrez PY - 2019/6/15/pubmed PY - 2019/6/15/medline KW - DPPH KW - ORAC KW - antioxidant activity KW - high-performance liquid chromatography time-of-flight mass spectrometry (HPLC/MS/TOF) KW - monovarietal extra virgin olive oil KW - oleocanthal KW - oleuropein KW - phenolic compounds JF - Antioxidants (Basel, Switzerland) JO - Antioxidants (Basel) VL - 8 IS - 6 N2 - In the last years, the interest in Italian monovarietal oils has increased due to their specific organoleptic qualities. Extra virgin olive oils (EVOOs) are rich in phenolic compounds, secondary metabolites well known and studied for their nutraceutical properties. However, among EVOOs, there is great variability in phenolic composition due to the origin, the production technique, and mainly, the genotype. The aim of this work was to evaluate the different phenolic profiles and the antioxidant activities of monovarietal oils. The results confirm this variability. In fact, the overall content of oleuropein varies up to four times between the different genotypes (from 33.80 to 152.32 mg/kg oil), while the oleocanthal content is significant only in two oils. The antioxidant activity, determined with 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and oxygen radical absorbance capacity (ORAC) assays, is correlated with the content of total phenolic substances, with half maximal inhibitory concentration (IC50) values for the DPPH test ranging from 160 to 91 mg of oil, while the ORAC test shows values between 5.45 and 8.03 μmol Trolox equivalent (TE)/g oil. SN - 2076-3921 UR - https://www.unboundmedicine.com/medline/citation/31195713/Phenolic_Profile_and_Antioxidant_Activity_of_Italian_Monovarietal_Extra_Virgin_Olive_Oils_ DB - PRIME DP - Unbound Medicine ER -

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Phenolic Profile and Antioxidant Activity of Italian Monovarietal Extra Virgin Olive Oils.Antioxidants (Basel). 2019 Jun 05; 8(6)A