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Manai-Djebali H, Yeddes W, Hammami M, Nait-Mohamed S, Habachi E, Msaada K, Ben Youssef N. Exploring the synergistic potential of wild nettle and olive oil: bioactive compounds, antioxidant capacity, and antibacterial properties. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:3046-3055. [PMID: 38047414 DOI: 10.1080/09603123.2023.2287589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/20/2023] [Indexed: 12/05/2023]
Abstract
This study delved into the incorporation of wild nettle (Urtica dioica L.) leaves powder with virgin olive oil, exploring its potential to enhance nutritional value and health benefits. The antioxidant, antibacterial, and mineral-enrichment attributes of the resultant nettle-infused olive oil were investigated. Phenolic composition analysis revealed that an optimal maceration time of 30-40 minutes leads to maximal phenolic and flavonoid contents (57.66 mg GAE/100 g and 67.18 mg QE/100 g, respectively). The infused oil demonstrated superior radical scavenging activity (DPPH and ABTS assays) compared to virgin olive oil. Notably, nettle infusion significantly elevates zinc (10.12 mg/kg) and iron (13.85 mg/kg) contents. Antibacterial assays exhibited enhanced inhibition diameters and lower MIC and MBC values for nettle-infused oil against various bacterial strains. The study's findings underscore the potential of nettle infusion to enhance the nutritional and functional attributes of olive oil, holding promise for novel culinary and health applications.
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Affiliation(s)
- Hedia Manai-Djebali
- Laboratory of Olive Biotechnology, Biotechnology Center of Borj-Cedria, BP, Hammam-Lif, Tunisia
| | - Walid Yeddes
- Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cedria, BP, Tunisia, Hammam-Lif, Tunisia
| | - Majdi Hammami
- Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cedria, BP, Tunisia, Hammam-Lif, Tunisia
| | - Salma Nait-Mohamed
- Laboratory of Olive Biotechnology, Biotechnology Center of Borj-Cedria, BP, Hammam-Lif, Tunisia
| | - Emna Habachi
- Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cedria, BP, Tunisia, Hammam-Lif, Tunisia
| | - Kamel Msaada
- Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cedria, BP, Tunisia, Hammam-Lif, Tunisia
| | - Nabil Ben Youssef
- Laboratory of Olive Biotechnology, Biotechnology Center of Borj-Cedria, BP, Hammam-Lif, Tunisia
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2
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Marrero AD, Cárdenas C, Castilla L, Ortega-Vidal J, Quesada AR, Martínez-Poveda B, Medina MÁ. Antiangiogenic Potential of an Olive Oil Extract: Insights from a Proteomic Study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:13023-13038. [PMID: 38809962 PMCID: PMC11181319 DOI: 10.1021/acs.jafc.3c08851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/31/2024]
Abstract
Extra virgin olive oil (EVOO), a staple of the Mediterranean diet, is rich in phenolic compounds recognized for their potent bioactive effects, including anticancer and anti-inflammatory properties. However, its effects on vascular health remain relatively unexplored. In this study, we examined the impact of a "picual" EVOO extract from Jaén, Spain, on endothelial cells. Proteomic analysis revealed the modulation of angiogenesis-related processes. In subsequent in vitro experiments, the EVOO extract inhibited endothelial cell migration, adhesion, invasion, ECM degradation, and tube formation while inducing apoptosis. These results provide robust evidence of the extract's antiangiogenic potential. Our findings highlight the potential of EVOO extracts in mitigating angiogenesis-related pathologies, such as cancer, macular degeneration, and diabetic retinopathy.
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Affiliation(s)
- Ana Dácil Marrero
- Departamento
de Biología Molecular y Bioquímica, Facultad de Ciencias,
Andalucía Tech, Universidad de Málaga, E-29071 Málaga, Spain
- Instituto
de Investigación Biomédica y Plataforma en Nanomedicina-IBIMA
Plataforma BIONAND (Biomedical Research Institute of Málaga), E-29071 Málaga, Spain
- CIBER
de Enfermedades Raras (CIBERER), Instituto
de Salud Carlos III, E-28029 Madrid, Spain
| | - Casimiro Cárdenas
- Departamento
de Biología Molecular y Bioquímica, Facultad de Ciencias,
Andalucía Tech, Universidad de Málaga, E-29071 Málaga, Spain
- Servicios
Centrales de Apoyo a la Investigación (SCAI), Universidad de Málaga, E-29071 Málaga, Spain
| | - Laura Castilla
- Departamento
de Biología Molecular y Bioquímica, Facultad de Ciencias,
Andalucía Tech, Universidad de Málaga, E-29071 Málaga, Spain
- Instituto
de Investigación Biomédica y Plataforma en Nanomedicina-IBIMA
Plataforma BIONAND (Biomedical Research Institute of Málaga), E-29071 Málaga, Spain
| | - Juan Ortega-Vidal
- Departamento
de Química Inorgánica y Orgánica, Campus de Excelencia
Internacional Agroalimentaria ceiA3, Universidad
de Jaén, Jaén E- 23071, Spain
| | - Ana R. Quesada
- Departamento
de Biología Molecular y Bioquímica, Facultad de Ciencias,
Andalucía Tech, Universidad de Málaga, E-29071 Málaga, Spain
- Instituto
de Investigación Biomédica y Plataforma en Nanomedicina-IBIMA
Plataforma BIONAND (Biomedical Research Institute of Málaga), E-29071 Málaga, Spain
- CIBER
de Enfermedades Raras (CIBERER), Instituto
de Salud Carlos III, E-28029 Madrid, Spain
| | - Beatriz Martínez-Poveda
- Departamento
de Biología Molecular y Bioquímica, Facultad de Ciencias,
Andalucía Tech, Universidad de Málaga, E-29071 Málaga, Spain
- Instituto
de Investigación Biomédica y Plataforma en Nanomedicina-IBIMA
Plataforma BIONAND (Biomedical Research Institute of Málaga), E-29071 Málaga, Spain
- CIBER
de
Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, E-28029 Madrid, Spain
| | - Miguel Ángel Medina
- Departamento
de Biología Molecular y Bioquímica, Facultad de Ciencias,
Andalucía Tech, Universidad de Málaga, E-29071 Málaga, Spain
- Instituto
de Investigación Biomédica y Plataforma en Nanomedicina-IBIMA
Plataforma BIONAND (Biomedical Research Institute of Málaga), E-29071 Málaga, Spain
- CIBER
de Enfermedades Raras (CIBERER), Instituto
de Salud Carlos III, E-28029 Madrid, Spain
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Wijaya GYA, Cuffaro D, Bertini S, Digiacomo M, Macchia M. 1-Acetoxypinoresinol, a Lignan from Olives: Insight into Its Characterization, Identification, and Nutraceutical Properties. Nutrients 2024; 16:1474. [PMID: 38794712 PMCID: PMC11123675 DOI: 10.3390/nu16101474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/03/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Extra virgin olive oil (EVOO) is a symbol of the Mediterranean diet, constituting its primary source of fat. The beneficial effect of EVOO is strictly related to the presence of fatty acids and polyphenols, bioactive compounds endowed with nutraceutical properties. Among EVOO polyphenols, lignans possess a steroid-like chemical structure and are part of the phytoestrogen family, which is renowned for its health properties. The natural lignans (+)-pinoresinol and 1-acetoxypinoresinol (1-AP) are commonly present in olives and in EVOO. Although (+)-pinoresinol is found in different edible plants, such as flaxseed, beans, whole-grain cereals, sesame seeds, and certain vegetables and fruit, 1-AP was exclusively identified in olives in 2000. So far, the scientific literature has extensively covered different aspects of (+)-pinoresinol, including its isolation and nutraceutical properties. In contrast, less is known about the olive lignan 1-AP. Therefore, this review aimed to comprehensively evaluate the more important aspects of 1-AP, collecting all the literature from 2016 to the present, exploring its distribution in different cultivars, analytical isolation and purification, and nutraceutical properties.
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Affiliation(s)
- Ganesha Yanuar Arief Wijaya
- Doctoral School in Life Sciences, University of Siena, 53100 Siena, Italy;
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
| | - Doretta Cuffaro
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Simone Bertini
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
| | - Maria Digiacomo
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Marco Macchia
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
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Di Pietro M, Filardo S, Mattioli R, Bozzuto G, Raponi G, Mosca L, Sessa R. Anti-Biofilm Activity of Oleacein and Oleocanthal from Extra-Virgin Olive Oil toward Pseudomonas aeruginosa. Int J Mol Sci 2024; 25:5051. [PMID: 38732269 PMCID: PMC11084407 DOI: 10.3390/ijms25095051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/24/2024] [Accepted: 05/04/2024] [Indexed: 05/13/2024] Open
Abstract
New antimicrobial molecules effective against Pseudomonas aeruginosa, known as an antibiotic-resistant "high-priority pathogen", are urgently required because of its ability to develop biofilms related to healthcare-acquired infections. In this study, for the first time, the anti-biofilm and anti-virulence activities of a polyphenolic extract of extra-virgin olive oil as well as purified oleocanthal and oleacein, toward P. aeruginosa clinical isolates were investigated. The main result of our study was the anti-virulence activity of the mixture of oleacein and oleocanthal toward multidrug-resistant and intermediately resistant strains of P. aeruginosa isolated from patients with ventilator-associated pneumonia or surgical site infection. Specifically, the mixture of oleacein (2.5 mM)/oleocanthal (2.5 mM) significantly inhibited biofilm formation, alginate and pyocyanin production, and motility in both P. aeruginosa strains (p < 0.05); scanning electron microscopy analysis further evidenced its ability to inhibit bacterial cell adhesion as well as the production of the extracellular matrix. In conclusion, our results suggest the potential application of the oleacein/oleocanthal mixture in the management of healthcare-associated P. aeruginosa infections, particularly in the era of increasing antimicrobial resistance.
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Affiliation(s)
- Marisa Di Pietro
- Department of Public Health and Infectious Diseases, “Sapienza” University, p.le Aldo Moro, 5, 00185 Rome, Italy; (M.D.P.); (S.F.); (G.R.)
| | - Simone Filardo
- Department of Public Health and Infectious Diseases, “Sapienza” University, p.le Aldo Moro, 5, 00185 Rome, Italy; (M.D.P.); (S.F.); (G.R.)
| | - Roberto Mattioli
- Department of Biochemical Sciences, Faculty of Pharmacy and Medicine, “Sapienza” University, p.le Aldo Moro, 5, 00185 Rome, Italy; (R.M.); (L.M.)
| | - Giuseppina Bozzuto
- National Centre for Drug Research and Evaluation, Italian National Institute of Health, 00161 Rome, Italy;
| | - Giammarco Raponi
- Department of Public Health and Infectious Diseases, “Sapienza” University, p.le Aldo Moro, 5, 00185 Rome, Italy; (M.D.P.); (S.F.); (G.R.)
| | - Luciana Mosca
- Department of Biochemical Sciences, Faculty of Pharmacy and Medicine, “Sapienza” University, p.le Aldo Moro, 5, 00185 Rome, Italy; (R.M.); (L.M.)
| | - Rosa Sessa
- Department of Public Health and Infectious Diseases, “Sapienza” University, p.le Aldo Moro, 5, 00185 Rome, Italy; (M.D.P.); (S.F.); (G.R.)
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López-Bascón MA, Moscoso-Ruiz I, Quirantes-Piné R, del Pino-García R, López-Gámez G, Justicia-Rueda A, Verardo V, Quiles JL. Characterization of Phenolic Compounds in Extra Virgin Olive Oil from Granada (Spain) and Evaluation of Its Neuroprotective Action. Int J Mol Sci 2024; 25:4878. [PMID: 38732097 PMCID: PMC11084348 DOI: 10.3390/ijms25094878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/18/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
The olive oil sector is a fundamental food in the Mediterranean diet. It has been demonstrated that the consumption of extra virgin olive oil (EVOO) with a high content of phenolic compounds is beneficial in the prevention and/or treatment of many diseases. The main objective of this work was to study the relationship between the content of phenolic compounds and the in vitro neuroprotective and anti-inflammatory activity of EVOOs from two PDOs in the province of Granada. To this purpose, the amounts of phenolic compounds were determined by liquid chromatography coupled to mass spectrometry (HPLC-MS) and the inhibitory activity of acetylcholinesterase (AChE) and cyclooxygenase-2 (COX-2) enzymes by spectrophotometric and fluorimetric assays. The main families identified were phenolic alcohols, secoiridoids, lignans, flavonoids, and phenolic acids. The EVOO samples with the highest total concentration of compounds and the highest inhibitory activity belonged to the Picual and Manzanillo varieties. Statistical analysis showed a positive correlation between identified compounds and AChE and COX-2 inhibitory activity, except for lignans. These results confirm EVOO's compounds possess neuroprotective potential.
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Affiliation(s)
- María Asunción López-Bascón
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Inmaculada Moscoso-Ruiz
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Rosa Quirantes-Piné
- Department of Analytical Chemistry, University of Granada, Avda. Fuentenueva S/N, 18071 Granada, Spain;
| | - Raquel del Pino-García
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Gloria López-Gámez
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Andrea Justicia-Rueda
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
| | - Vito Verardo
- Centro de Investigación y Desarrollo del Alimento Funcional (CIDAF), Avda. Del Conocimiento, 37, 18016 Granada, Spain; (M.A.L.-B.)
- Department of Nutrition and Food Science, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18071 Granada, Spain
| | - José L. Quiles
- Department of Physiology, Institute of Nutrition and Food Technology “José Mataix Verdú”, Biomedical Research Centre, University of Granada, 18016 Armilla, Spain
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain
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Cuffaro D, Digiacomo M, Macchia M. Dietary Bioactive Compounds: Implications for Oxidative Stress and Inflammation. Nutrients 2023; 15:4966. [PMID: 38068824 PMCID: PMC10707977 DOI: 10.3390/nu15234966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Nowadays, it has been amply demonstrated how an appropriate diet and lifestyle are essential for preserving wellbeing and preventing illnesses [...].
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Affiliation(s)
- Doretta Cuffaro
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Maria Digiacomo
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Marco Macchia
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
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Cuffaro D, Bertolini A, Bertini S, Ricci C, Cascone MG, Danti S, Saba A, Macchia M, Digiacomo M. Olive Mill Wastewater as Source of Polyphenols with Nutraceutical Properties. Nutrients 2023; 15:3746. [PMID: 37686778 PMCID: PMC10489820 DOI: 10.3390/nu15173746] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Agrifood waste products are often considered rich sources of bioactive compounds that can be conveniently recovered. Due to these peculiar characteristics, the study of these waste products is attracting great interest in nutraceutical research. Olive mill wastewaters (OMWWs) are generated by extra virgin olive oil (EVOO) production, and they pose environmental challenges due to their disposal. This study aimed to characterize the polyphenolic profile and to evaluate the nutraceutical properties of OMWW extracts from two Tuscan olive cultivars, Leccino (CL) and Frantoio (CF), collected during different time points in EVOO production. METHOD After a liquid-liquid extraction, the HPLC and LC-MS/MS analysis of OMWW extracts confirmed the presence of 18 polyphenolic compounds. RESULTS The polyphenol composition varied between the cultivars and during maturation stages. Notably, oleacein was detected at remarkably high levels in CL1 and CF1 extracts (314.628 ± 19.535 and 227.273 ± 3.974 μg/mg, respectively). All samples demonstrated scavenging effects on free radicals (DPPH and ABTS assays) and an anti-inflammatory potential by inhibiting cyclooxygenase (COX) enzymes. CONCLUSIONS This study highlights the nutraceutical potential of OMWW extracts, emphasizing their antioxidant, antiradical, and anti-inflammatory activities. The results demonstrate the influence of olive cultivar, maturation stage, and extraction process on the polyphenolic composition and the bioactivity of OMWW extracts. These findings support a more profitable reuse of OMWW as an innovative, renewable, and low-cost source of dietary polyphenols with potential applications as functional ingredients in the development of dietary supplements, as well as in the pharmaceutical and cosmetics industries.
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Affiliation(s)
- Doretta Cuffaro
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
| | - Andrea Bertolini
- Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, 56126 Pisa, Italy;
| | - Simone Bertini
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
| | - Claudio Ricci
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (C.R.); (M.G.C.); (S.D.)
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (C.R.); (M.G.C.); (S.D.)
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (C.R.); (M.G.C.); (S.D.)
| | - Alessandro Saba
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
- Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, 56126 Pisa, Italy;
| | - Marco Macchia
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
| | - Maria Digiacomo
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy;
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Cuffaro D, Pinto D, Silva AM, Bertolini A, Bertini S, Saba A, Macchia M, Rodrigues F, Digiacomo M. Insights into the Antioxidant/Antiradical Effects and In Vitro Intestinal Permeation of Oleocanthal and Its Metabolites Tyrosol and Oleocanthalic Acid. Molecules 2023; 28:5150. [PMID: 37446813 PMCID: PMC10343523 DOI: 10.3390/molecules28135150] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
(1) Background: In recent years, numerous studies have highlighted the beneficial effects of extra virgin olive oil (EVOO) as an active ingredient against chronic diseases. The properties of EVOO are due to its peculiar composition, mainly to its rich content of polyphenols. In fact, polyphenols may contribute to counteract oxidative stress, which often accompanies chronic diseases. In this work, the antioxidant effects of high-value polyphenol oleocanthal (OC) and its main metabolites, tyrosol (Tyr) and oleocanthalic acid (OA), respectively, have been investigated along with their impact on cell viability. (2) Methods: OC, Tyr, and OA have been evaluated regarding antiradical properties in term of scavenging capacity towards biologically relevant reactive species, including O2●-, HOCl, and ROO●, as well as their antioxidant/antiradical capacity (FRAP, DPPH●, ABTS●+). Moreover, the ability to permeate the intestinal membrane was assessed by an intestinal co-culture model composed by Caco-2 and HT29-MTX cell lines. (3) Results: The capacity of OC and Tyr as radical oxygen species (ROS) scavengers, particularly regarding HOCl and O2●-, was clearly demonstrated. Furthermore, the ability to permeate the intestinal co-culture model was plainly proved by the good permeations (>50%) achieved by all compounds. (4) Conclusions: OC, OA, and Tyr revealed promising properties against oxidative diseases.
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Affiliation(s)
- Doretta Cuffaro
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Diana Pinto
- REQUIMTE/LAQV, ISEP, Polytechnic Institute of Porto, Rua Dr. António Bernardino de Almeida, 4249-015 Porto, Portugal; (D.P.); (A.M.S.)
| | - Ana Margarida Silva
- REQUIMTE/LAQV, ISEP, Polytechnic Institute of Porto, Rua Dr. António Bernardino de Almeida, 4249-015 Porto, Portugal; (D.P.); (A.M.S.)
| | - Andrea Bertolini
- Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, 56126 Pisa, Italy; (A.B.); (A.S.)
| | - Simone Bertini
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
| | - Alessandro Saba
- Department of Surgery, Medical, Molecular and Critical Area Pathology, University of Pisa, 56126 Pisa, Italy; (A.B.); (A.S.)
| | - Marco Macchia
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Francisca Rodrigues
- REQUIMTE/LAQV, ISEP, Polytechnic Institute of Porto, Rua Dr. António Bernardino de Almeida, 4249-015 Porto, Portugal; (D.P.); (A.M.S.)
| | - Maria Digiacomo
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
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