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Casadei E, Valli E, Bendini A, Barbieri S, Tucci R, Ferioli F, Gallina Toschi T. Valorization of monovarietal Nostrana di Brisighella extra virgin olive oils: focus on bioactive compounds. Front Nutr 2024; 11:1353832. [PMID: 38638290 PMCID: PMC11024785 DOI: 10.3389/fnut.2024.1353832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 03/11/2024] [Indexed: 04/20/2024] Open
Abstract
A "green breakthough" at the table due to consumer demand for healthy and sustainable foods, which aligns with the typical Mediterranean diet, has recently led to an increase in the consumption of products such as extra virgin olive oil. In fact, Italian olive cultivation, which contributes an average of 15% of world production, has seen the production of extra virgin olive oil with a value of exports that have doubled in the last 20 years. In this context, the olive oil sector of the Emilia-Romagna region (Italy), and in particular the PDO Brisighella, could achieve greater success with consumers by proposing a product obtained through sustainable agriculture that enhances the content of bioactive compounds. For these reasons, in this study, different agronomic variables are investigated in order to optimize the presence of bioactive components in extra virgin olive oil made from monovarietal Nostrana di Brisighella, namely phenolic and positive volatile compounds, thus naturally enriching this product both from health and sensory points of view. The study focuses on the volatile and phenolic fractions (derivatives of hydroxytyrosol and tyrosol) of olive oil and the positive sensory attributes (fruity, bitter and pungent) that are known to be associated with these molecules. The phenolic content is of particular interest due to the potential to support health claims. Extra virgin olive oil samples were produced from olives of the Nostrana di Brisighella cultivar; fruits were obtained through integrated pest management or organic farming and picked at four increasing indices of maturity, corresponding to four successive weeks of harvesting. These agronomic variables influenced the compositional and sensory characteristics of the extra virgin olive oils assessed, highlighting differences that likely derive from the effect of the agronomic system used, i.e., integrated pest management or organic farming.
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Affiliation(s)
- Enrico Casadei
- Department of Agricultural and Food Science, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
- Interdepartmental Centre for Industrial Agrofood Research, Alma Mater Studiorum – Università di Bologna, Cesena, Italy
| | - Enrico Valli
- Department of Agricultural and Food Science, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
- Interdepartmental Centre for Industrial Agrofood Research, Alma Mater Studiorum – Università di Bologna, Cesena, Italy
| | - Alessandra Bendini
- Department of Agricultural and Food Science, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
- Interdepartmental Centre for Industrial Agrofood Research, Alma Mater Studiorum – Università di Bologna, Cesena, Italy
| | - Sara Barbieri
- Department of Agricultural and Food Science, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
| | - Rosalba Tucci
- Department of Agricultural and Food Science, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
| | - Federico Ferioli
- Department of Agricultural and Food Science, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
| | - Tullia Gallina Toschi
- Department of Agricultural and Food Science, Alma Mater Studiorum – Università di Bologna, Bologna, Italy
- Interdepartmental Centre for Industrial Agrofood Research, Alma Mater Studiorum – Università di Bologna, Cesena, Italy
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Olmo-Cunillera A, Ribas-Agustí A, Lozano-Castellón J, Pérez M, Ninot A, Romero-Aroca A, Lamuela-Raventós RM, Vallverdú-Queralt A. High hydrostatic pressure enhances the formation of oleocanthal and oleacein in 'Arbequina' olive fruit. Food Chem 2024; 437:137902. [PMID: 37924762 DOI: 10.1016/j.foodchem.2023.137902] [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: 07/21/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 11/06/2023]
Abstract
During olive oil production, the activity of endogenous enzymes plays a crucial role in determining the oil's phenolic composition. β-Glucosidase contributes to the formation of secoiridoids, while polyphenol oxidase (PPO) and peroxidase (POX) are involved in their oxidation. This study investigated whether high hydrostatic pressure (HHP), known to cause cell disruption and modify enzymatic activity and food texture, could reduce PPO and POX activity. HHP was applied to 'Arbequina' olives at different settings (300 and 600 MPa, 3 and 6 min) before olive oil extraction. The tested HHP conditions were not effective in reducing the activity of PPO and POX in olives, resulting in oils with a lower phenolic content. However, HHP increased the secoiridoid content of olives, particularly oleocanthal and oleacein (>50%). The pigments in oils produced from HHP-treated olives were higher compared to the control, whereas squalene and α-tocopherol levels and the fatty acid profile remained the same.
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Affiliation(s)
- Alexandra Olmo-Cunillera
- Polyphenol Research Group, Department of Nutrition, Food Science and Gastronomy, XIA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain.
| | - Albert Ribas-Agustí
- Food Safety and Functionality Program, Institute of Agrifood Research and Technology (IRTA), 17121 Monells, Spain.
| | - Julián Lozano-Castellón
- Polyphenol Research Group, Department of Nutrition, Food Science and Gastronomy, XIA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain.
| | - Maria Pérez
- Polyphenol Research Group, Department of Nutrition, Food Science and Gastronomy, XIA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain.
| | - Antònia Ninot
- Fruit Science Program, Olive Growing and Oil Technology Research Team, Institute of Agrifood Research and Technology (IRTA), 43120 Constantí, Spain.
| | - Agustí Romero-Aroca
- Fruit Science Program, Olive Growing and Oil Technology Research Team, Institute of Agrifood Research and Technology (IRTA), 43120 Constantí, Spain.
| | - Rosa Maria Lamuela-Raventós
- Polyphenol Research Group, Department of Nutrition, Food Science and Gastronomy, XIA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain
| | - Anna Vallverdú-Queralt
- Polyphenol Research Group, Department of Nutrition, Food Science and Gastronomy, XIA, Faculty of Pharmacy and Food Sciences, Institute of Nutrition and Food Safety (INSA-UB), University of Barcelona, 08028 Barcelona, Spain; CIBER Physiopathology of Obesity and Nutrition (CIBEROBN), Institute of Health Carlos III, 28029 Madrid, Spain.
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