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Fiorito S, Collevecchio C, Spogli R, Epifano F, Genovese S. Novel procedures for olive leaves extracts processing: Selective isolation of oleuropein and elenolic acid. Food Chem 2024; 447:139038. [PMID: 38507946 DOI: 10.1016/j.foodchem.2024.139038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024]
Abstract
Several processes have been developed in the past to selectively extract oleuropein and its aglycones from olive derived materials. In the present manuscript, we outline a novel approach for processing olive leaves aqueous extracts. This allowed first to select microwave irradiation as the methodology able to provide a large enrichment in oleuropein. Subsequently, the use of lamellar solids led to the selective and high yield concentration of the same. Adsorption on solids also largely contributed to the long term chemical stability of oleuropein. Finally, an eco-friendly, readily available, and reusable catalyst like H2SO4 supported on silica was applied for the hydrolysis of oleuropein into hydroxytyrosol and elenolic acid. This latter was in turn selectively isolated by an acid-base work-up providing its monoaldehydic dihydropyran form (7.8 % extractive yield), that was unequivocally characterized by GC-MS. The isolation of elenolic acid in pure form is described herein for the first time.
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Affiliation(s)
- Serena Fiorito
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti - Pescara, Via dei Vestini 31, 66100 Chieti Scalo (CH), Italy.
| | - Chiara Collevecchio
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti - Pescara, Via dei Vestini 31, 66100 Chieti Scalo (CH), Italy.
| | - Roberto Spogli
- Prolabin & Tefarm Srl, Via dell'Acciaio 9, 06129 Pontefelcino, Perugia, Italy.
| | - Francesco Epifano
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti - Pescara, Via dei Vestini 31, 66100 Chieti Scalo (CH), Italy.
| | - Salvatore Genovese
- Dipartimento di Farmacia, Università "G. d'Annunzio" Chieti - Pescara, Via dei Vestini 31, 66100 Chieti Scalo (CH), Italy.
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2
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Nitika, Kaur J, Khanna R. Graphene based T-shaped monopole antenna sensor for food quality evaluation. J Sci Food Agric 2024; 104:3913-3925. [PMID: 38345161 DOI: 10.1002/jsfa.13272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 12/16/2023] [Accepted: 01/03/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Food adulteration has long been considered a major problem. It compromises the quality, safety, and nutritional value of food, posing significant risks to public health. Novel techniques are required to control it. RESULTS A graphene-based T-shaped monopole antenna sensor was tested for its ability to detect adulteration in liquid foods. Mustard oil was the pure reference sample used for product quality analysis. Olive oil and rice bran oil were adulterants added to the pure sample. It was found that the sensor could be immersed easily in the liquid sample and provided precise results. CONCLUSION The graphene-based T-shaped monopole antenna sensor can be used for the quality assessment of liquid food products and is suitable for real-time monitoring. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Nitika
- Department of Electronics and Communication Engineering, Thapar Institute of Engineering and Technology, Patiala, India
| | - Jaswinder Kaur
- Department of Electronics and Communication Engineering, Thapar Institute of Engineering and Technology, Patiala, India
| | - Rajesh Khanna
- Department of Electronics and Communication Engineering, Thapar Institute of Engineering and Technology, Patiala, India
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3
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Nikou T, Karampetsou KV, Koutsoni OS, Skaltsounis AL, Dotsika E, Halabalaki M. Pharmacokinetics and Metabolism Investigation of Oleocanthal. J Nat Prod 2024; 87:530-543. [PMID: 37910854 DOI: 10.1021/acs.jnatprod.3c00422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Oleocanthal is a secoiridoid found in olive oil, which lately gained great scientific interest due to its important pharmacological spectrum and biological properties. However, limited data exist on the metabolic fate of oleocanthal in vivo, a commonly underestimated aspect in natural products research. Especially, its pharmacokinetic (PK) characteristics have never been described so far. Thus, in the current study, a mouse-based protocol was designed, and oleocanthal was administered intraperitoneally in a standard dose of 5 mg/kg. In order to determine the PK parameters of oleocanthal or its metabolites, plasma samples were collected at 10 time points. Extraction and analysis protocols were developed and applied for the recovery and detection of oleocanthal in plasma, as well as the identification of its metabolites, using LC-HRMS/MS. Oleocanthal was not detected, proving the short lifetime of the compound in vivo, and 13 metabolites were identified. Among them, oleocanthalic acid and tyrosol sulfate were proposed as oleocanthal's biomarkers, in vivo. This is the first report associating oleocanthalic acid with oleocanthal administration in vivo, while its PK parameters, Tmax (T0) and Cmax (926 μg/mL), were also determined. The current study enlightens bioavailability and metabolism aspects of oleocanthal and suggests the association of specific metabolites with the biological effects attributed to oleocanthal administration. More studies are needed to give better insights into the metabolism and the mechanism of action of secoiridoids as well as to respond to identification challenges related to secoiridoid in vivo setups.
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Affiliation(s)
- Theodora Nikou
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimioupoli, Zografou, 15771, Athens, Greece
| | - Kalliopi V Karampetsou
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, 11521 Athens, Greece
| | - Olga S Koutsoni
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, 11521 Athens, Greece
| | - Alexios-Leandros Skaltsounis
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimioupoli, Zografou, 15771, Athens, Greece
| | - Eleni Dotsika
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, 11521 Athens, Greece
| | - Maria Halabalaki
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimioupoli, Zografou, 15771, Athens, Greece
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4
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Jiménez A, Rufo M, Paniagua JM, González-Mohino A, Olegario LS. Temperature dependence of acoustic parameters in pure and blended edible oils: Implications for characterization and authentication. Ultrasonics 2024; 138:107216. [PMID: 38070441 DOI: 10.1016/j.ultras.2023.107216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/10/2023] [Accepted: 12/04/2023] [Indexed: 04/02/2024]
Abstract
This research investigates the temperature-dependent variation of diverse acoustic parameters in samples of edible oils. It further supplements previous studies on the effectiveness of non-destructive ultrasonic inspection in the authentication of edible oils. The oils under examination consist of pure samples of olive, sunflower, and corn oils, as well as variable mixtures ranging from 20 % to 80 % of the more expensive one (olive oil) with the other two, simulating a hypothetical adulteration scenario. The studied acoustic parameters are related to the velocity, attenuation, and frequency components present in 2.25 MHz ultrasonic waves propagating through the oil samples within a temperature range of 24 °C to 34 °C. The results confirm the suitability of non-destructive ultrasonic inspection in evaluating and detecting the adulteration of olive oil with economically inferior oils such as sunflower and corn. Additionally, this study provides added value by laying the groundwork for a non-destructive and innovative determination of the fatty acid profile of an edible oil based on the evolution of the aforementioned ultrasonic parameters with temperature. The findings hold potential for enhancing the authenticity assessment and quality control of edible oils in the food industry.
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Affiliation(s)
- A Jiménez
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - M Rufo
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - J M Paniagua
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - A González-Mohino
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain.
| | - L S Olegario
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
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Lozano-Castellón J, Olmo-Cunillera A, Casadei E, Valli E, Domínguez-López I, Miliarakis E, Pérez M, Ninot A, Romero-Aroca A, Bendini A, Lamuela-Raventós RM, Vallverdú-Queralt A. A targeted foodomic approach to assess differences in extra virgin olive oils: Effects of storage, agronomic and technological factors. Food Chem 2024; 435:137539. [PMID: 37742466 DOI: 10.1016/j.foodchem.2023.137539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/26/2023]
Abstract
Extra virgin olive oil (EVOO) quality and composition are mainly affected by genetics, agronomic and technological parameters, undergoing further modifications during storage. In this work, a chemometric approach was applied to study the impact of olive maturity, malaxation time/temperature, and oil storage on the quality and compositional parameters of Arbequina EVOO (basic quality indices, volatile and sensory profiles, contents in phenolic compounds, squalene, vitamin E and fatty acids). Storage emerged as the most influential factor, followed by olive maturity and malaxation temperature, while malaxation time had almost no effect. Storage at room temperature had a significant impact on the phenolic profile and quality parameters, mainly the peroxide value and K270. The determination of K270, an indicator of secondary oxidation products, was relevant to analyze the effect of storage conditions. Volatile compounds and fatty acids were good markers of ripeness, and the volatile profile was highly affected by malaxation temperature.
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Affiliation(s)
- 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
| | - 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
| | - Enrico Casadei
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - Università di Bologna, 47521 Cesena, Italy
| | - Enrico Valli
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - Università di Bologna, 47521 Cesena, Italy; Interdepartmental Centre for Industrial Agrofood Research, Alma Mater Studiorum - Università di Bologna, 47521 Cesena, Italy
| | - Inés Domínguez-López
- 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
| | - Eleftherios Miliarakis
- 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
| | - 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
- Institute of Agrifood Research and Technology (IRTA), Fruit Science Program, Olive Growing and Oil Technology Research Team, 43120 Constantí, Spain
| | - Agustí Romero-Aroca
- Institute of Agrifood Research and Technology (IRTA), Fruit Science Program, Olive Growing and Oil Technology Research Team, 43120 Constantí, Spain
| | - Alessandra Bendini
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - Università di Bologna, 47521 Cesena, Italy; Interdepartmental Centre for Industrial Agrofood Research, Alma Mater Studiorum - Università di Bologna, 47521 Cesena, Italy
| | - Rosa M 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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6
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Parastar H, Christmann J, Weller P. Automated 2D peak detection in gas chromatography-ion mobility spectrometry through persistent homology. Anal Chim Acta 2024; 1289:342204. [PMID: 38245205 DOI: 10.1016/j.aca.2024.342204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/11/2023] [Accepted: 01/02/2024] [Indexed: 01/22/2024]
Abstract
BACKGROUND Gas chromatography-ion mobility spectrometry (GC-IMS) is a powerful analytical technique which has gained widespread use in a variety of fields. Detecting peaks in GC-IMS data is essential for chemical identification. Topological data analysis (TDA) has the ability to record alterations in topology throughout the entire spectrum of GC-IMS data and retain this data in diagrams known as persistence diagrams. To put it differently, TDA naturally identifies characteristics such as mountains, volcanoes, and their higher-dimensional equivalents within the original data and measures their significance. RESULTS In the present contribution, a novel approach based on persistent homology (a flagship technique of TDA) is suggested for automatic 2D peak detection in GC-IMS. For this purpose, two different GC-IMS data examples (urine and olive oil) are used to show the performance of the proposed method. The outputs of the algorithm are GC-IMS chromatogram with detected peaks, persistence plot showing the importance (intensity) of the detected peaks and a table with retention times (RT), drift times (DT), and persistence scores of detected peaks. The RT and DT can be used for identification of the peaks and persistence scores for quantitation. Additionally, watershed segmentation is applied to the GC-IMS images to index individual peaks and segment overlapping compounds allowing for a more accurate identification and quantification of individual peaks. SIGNIFICANCE Inspection of the results for GC-IMS datasets showed the accurate and reliable performance of the proposed strategy based on persistent homology for automatic 2D GC-IMS peak detection for qualitative and quantitative analysis. In addition, this approach can be easily extended to other types of hyphenated chromatographic and/or spectroscopic data.
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Affiliation(s)
- Hadi Parastar
- Department of Chemistry, Sharif University of Technology, P.O. Box 11155-9516, Tehran, Iran; Institute for Instrumental Analytics and Bioanalytics, Mannheim University of Applied Sciences, 68163, Mannheim, Germany.
| | - Joscha Christmann
- Institute for Instrumental Analytics and Bioanalytics, Mannheim University of Applied Sciences, 68163, Mannheim, Germany
| | - Philipp Weller
- Institute for Instrumental Analytics and Bioanalytics, Mannheim University of Applied Sciences, 68163, Mannheim, Germany.
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Cecchi L, Orlandini S, Balli D, Zanoni B, Migliorini M, Giambanelli E, Catola S, Furlanetto S, Mulinacci N. Analysis of Volatile Hydrocarbons (Pentene Dimers and Terpenes) in Extra Virgin Olive Oil: Optimization by Response Surface Methodology and Validation of HS-SPME-GC-MS Method. J Agric Food Chem 2024; 72:2813-2825. [PMID: 38263713 DOI: 10.1021/acs.jafc.3c07430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
A head space-solid phase microextraction-gas chromatography-mass spectrometery (HS-SPME-GC-MS) method for the simultaneous analysis of pentene dimers from lipoxygenase (LOX) pathway, monoterpenes, and sesquiterpenes in extra virgin olive oil (EVOO) was proposed. A Doehlert design was performed; the conditions of the HS-SPME preconcentration step (extraction temperature, extraction time, sample amount, and desorption time) were optimized by response surface methodology, allowing defining the method operable design region. A quantitative method was set up using the multiple internal standard normalization approach: four internal standards were used, and the most suitable one was selected for area normalization of each external standard. The quantitative method was successfully validated and applied to a series of monocultivar EVOOs. This is the first paper in which a quantitative method using commercial standards has been proposed for the analysis of an important class of molecules of EVOO such as pentene dimers. The optimized method is suitable for routine analysis aimed at characterizing high quality EVOOs.
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Affiliation(s)
- Lorenzo Cecchi
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale Delle Cascine 16, Sesto Fiorentino, Florence 50144, Italy
| | - Serena Orlandini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Ugo Schiff 6, Sesto Fiorentino, Florence 50019, Italy
| | - Diletta Balli
- Department of NEUROFARBA, University of Florence, Via Ugo Schiff 6, Sesto F.no, Florence 50019, Italy
| | - Bruno Zanoni
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Piazzale Delle Cascine 16, Sesto Fiorentino, Florence 50144, Italy
| | - Marzia Migliorini
- Carapelli Firenze S.p.A., Via Leonardo da Vinci 31, Tavarnelle Val di Pesa, Firenze 50028, Italy
| | - Elisa Giambanelli
- Carapelli Firenze S.p.A., Via Leonardo da Vinci 31, Tavarnelle Val di Pesa, Firenze 50028, Italy
| | - Stefano Catola
- Carapelli Firenze S.p.A., Via Leonardo da Vinci 31, Tavarnelle Val di Pesa, Firenze 50028, Italy
| | - Sandra Furlanetto
- Department of Chemistry "Ugo Schiff", University of Florence, Via Ugo Schiff 6, Sesto Fiorentino, Florence 50019, Italy
| | - Nadia Mulinacci
- Department of NEUROFARBA, University of Florence, Via Ugo Schiff 6, Sesto F.no, Florence 50019, Italy
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Christopoulou NM, Mamoulaki V, Mitsiakou A, Samolada E, Kalogianni DP, Christopoulos TK. Screening Method for the Visual Discrimination of Olive Oil from Other Vegetable Oils by a Multispecies DNA Sensor. Anal Chem 2024; 96:1803-1811. [PMID: 38243913 DOI: 10.1021/acs.analchem.3c05507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2024]
Abstract
Olive oil is a prominent agricultural product which, in addition to its nutritional value and unique organoleptic characteristics, offers a variety of health benefits protecting against cardiovascular disease, cancer, and neurodegenerative diseases. The assessment of olive oil authenticity is an extremely important and challenging process aimed at protecting consumers and producers. The most frequent adulteration involves blending with less expensive and readily available vegetable/seed oils. The methods for adulteration detection, whether based on changes in metabolite profiles or based on DNA markers, require advanced and expensive instrumentation combined with powerful chemometric and statistical tools. To this end, we present a simple, multiplex, and inexpensive screening method based on the development of a multispecies DNA sensor for sample interrogation with the naked eye. It is the first report of a DNA sensor for olive oil adulteration detection with other plant oils. The sensor meets the 2-fold challenge of adulteration detection, i.e., determining whether the olive oil sample is adulterated and identifying the added vegetable oil. We have identified unique, nucleotide variations, which enable the discrimination of seven plant species (olive, corn, sesame, soy, sunflower, almond, and hazelnut). Following a single PCR step, a 20 min multiplex plant-discrimination reaction is performed, and the products are applied directly to the sensing device. The plant species are visualized as red spots using functionalized gold nanoparticles as reporters. The spot position reveals the identity of the plant species. As low as <5-10% of adulterant was detected with particularly good reproducibility and specificity.
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Affiliation(s)
- Natalia-Maria Christopoulou
- Analytical/Bioanalytical Chemistry & Nanotechnology Group, Department of Chemistry, University of Patras, Rio, Patras 26504, Greece
| | - Vasiliki Mamoulaki
- Analytical/Bioanalytical Chemistry & Nanotechnology Group, Department of Chemistry, University of Patras, Rio, Patras 26504, Greece
| | - Aglaia Mitsiakou
- Analytical/Bioanalytical Chemistry & Nanotechnology Group, Department of Chemistry, University of Patras, Rio, Patras 26504, Greece
| | - Eleni Samolada
- Analytical/Bioanalytical Chemistry & Nanotechnology Group, Department of Chemistry, University of Patras, Rio, Patras 26504, Greece
| | - Despina P Kalogianni
- Analytical/Bioanalytical Chemistry & Nanotechnology Group, Department of Chemistry, University of Patras, Rio, Patras 26504, Greece
| | - Theodore K Christopoulos
- Analytical/Bioanalytical Chemistry & Nanotechnology Group, Department of Chemistry, University of Patras, Rio, Patras 26504, Greece
- Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), Patras 26504, Greece
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9
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Olmo-Cunillera A, Pérez M, López-Yerena A, Abuhabib MM, Ninot A, Romero-Aroca A, Vallverdú-Queralt A, Maria Lamuela-Raventós R. Targeted metabolic profiling of the revived ancient 'Corbella' olive cultivar during early maturation. Food Chem 2024; 430:137024. [PMID: 37527576 DOI: 10.1016/j.foodchem.2023.137024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 07/07/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023]
Abstract
'Corbella' is an ancient olive cultivar whose cultivation has recently been revived and hence little is known about its composition. This is the first work studying the metabolic profile of 'Corbella' olives during early maturation. Olives with a ripening index (RI) < 1 yielded considerably less oil content (<40%) but had more concentration of phenolic compounds (148.41-219.70 mg/kg), carotenoids (9.61-14.94 mg/kg) and squalene (521.41-624.40 mg/kg). Contrarily, the levels of α-tocopherol were higher at the RI of 1.08 and 1.96 (64.57 and 57.75 mg/kg, respectively). The most abundant phenolic compound was oleuropein aglycone (>50% of the phenolic composition), suggesting a high hydrolytic activity of β-glucosidase in the fruit. The antioxidant capacity was barely affected, while oleic/linoleic ratio reached its highest at RI of 1.96. Therefore, olives with an RI below 2 could be good candidates to produce high-quality olive oils with good level of stability.
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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.
| | - 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.
| | - Anallely López-Yerena
- 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
| | - Mohamed M Abuhabib
- 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
| | - Antònia Ninot
- Institute of Agrifood Research and Technology (IRTA), Fruit Science Program, Olive Growing and Oil Technology Research Team, 43120 Constantí, Spain
| | - Agustí Romero-Aroca
- Institute of Agrifood Research and Technology (IRTA), Fruit Science Program, Olive Growing and Oil Technology Research Team, 43120 Constantí, 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
| | - 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.
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10
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Sadighara P, Ghanbari R, Mahmudiono T, Kavousi P, Limam I, Fakhri Y. Concentration and probabilistic health risk assessment of benzo(a)pyrene in extra virgin olive oils supplied in Tehran, Iran. Int J Environ Health Res 2024; 34:238-247. [PMID: 36371808 DOI: 10.1080/09603123.2022.2144629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
One hundred and sixteen samples of extra virgin olive oils (VOOs) from markets of Tehran were analyzed by high-performance liquid chromatography (HPLC) to detect the amount of benzo (a)pyrene. The values of LOD and LOQ were calculated as 0.03 and 0.05 µg/kg, respectively. The concentration of benzo (a) pyrene was from 0.03 to 0.95 µg/kg. The results indicate that the levels of benzo (a) pyrene are lower than the limits approved. Target Hazard quotient (THQ) and Margin of Exposure (MOE) were estimated. The mean of THQ for adults and children was 0.0006 and 0.0028 and also mean of MOE for adults and children was 43,503 and 9438, respectively. The probabilistic health risk shows that THQ is less than 1 value; hence consumers are not at non-cancer risk. The mean of MOE value for adults was more than 10,000 but for children was less than 10,000. Hence, children are at health risk borderline.
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Affiliation(s)
- Parisa Sadighara
- Department of Environmental Health, Food Safety Division, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Trias Mahmudiono
- Department of Nutrition, Faculty of Public Health, Universitas Airlangga, Surabaya, Indonesia
| | | | - Intissar Limam
- Laboratory of Materials, Treatment and Analysis, National Institute of Research and Physicochemical Analysis, Biotechpole Sidi-Thabet; and High School for Science and Health Techniques of Tunis, University of Tunis El Manar, Tunisia
| | - Yadolah Fakhri
- Food Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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11
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Reda R, Saffaj T, Bouzida I, Saidi O, Belgrir M, Lakssir B, El Hadrami EM. Optimized variable selection and machine learning models for olive oil quality assessment using portable near infrared spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123213. [PMID: 37523847 DOI: 10.1016/j.saa.2023.123213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/02/2023]
Abstract
Olive oil is a key component of the Mediterranean diet, rich in antioxidants and beneficial monounsaturated fatty acids. As a result, high-quality olive oil is in great demand, with its price varying depending on its quality. Traditional chemical tests for assessing olive oil quality are expensive and time-consuming. To address these limitations, this study explores the use of near infrared spectroscopy (NIRS) in predicting key quality parameters of olive oil, including acidity, K232, and K270. To this end, a set of 200 olive oil samples was collected from various agricultural regions of Morocco, covering all three quality categories (extra virgin, virgin, and ordinary virgin). The findings of this study have implications for reducing analysis time and costs associated with olive oil quality assessment. To predict olive oil quality parameters, chemical analysis was conducted in accordance with international standards, while the spectra were obtained using a portable NIR spectrometer. Partial least squares regression (PLSR) was employed along with various variable selection algorithms to establish the relationship between wavelengths and chemical data in order to accurately predict the quality parameters. Through this approach, the study aimed to enhance the efficiency and accuracy of olive oil quality assessment. The obtained results show that NIRS combined with machine learning accurately predicted the acidity using iPLS methods for variable selection, it generates a PLSR with coefficients of determination R2 = 0.94, root mean square error RMSE = 0.32 and ratios of standard error of performance to standard deviation RPD = 4.2 for the validation set. Also, the use of variable selection methods improves the quality of the prediction. For K232 and K270 the NIRS shows moderate prediction performance, it gave an R2 between 0.60 and 0.75. Generally, the results showed that it was possible to predict acidity K232, and K270 parameters with excellent to moderate accuracy for the two last parameters. Moreover, it was also possible to distinguish between different quality groups of olive oil using the principal component analysis PCA, and the use of variable selection helps to use the useful wavelength for the prediction olive oil using a portable NIR spectrometer.
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Affiliation(s)
- Rabie Reda
- University Sidi Mohamed Ben Abdellah, Faculty of Sciences and Techniques of Fez, Laboratory of Applied Organic Chemistry, Fez, Morocco; Moroccan Foundation for Advanced Science, Innovation & Research, MAScIR Rabat, Morocco
| | - Taoufiq Saffaj
- University Sidi Mohamed Ben Abdellah, Faculty of Sciences and Techniques of Fez, Laboratory of Applied Organic Chemistry, Fez, Morocco
| | - Ilham Bouzida
- Moroccan Foundation for Advanced Science, Innovation & Research, MAScIR Rabat, Morocco
| | - Ouadi Saidi
- Moroccan Foundation for Advanced Science, Innovation & Research, MAScIR Rabat, Morocco
| | - Malika Belgrir
- Moroccan Foundation for Advanced Science, Innovation & Research, MAScIR Rabat, Morocco
| | - Brahim Lakssir
- Moroccan Foundation for Advanced Science, Innovation & Research, MAScIR Rabat, Morocco
| | - El Mestafa El Hadrami
- University Sidi Mohamed Ben Abdellah, Faculty of Sciences and Techniques of Fez, Laboratory of Applied Organic Chemistry, Fez, Morocco
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12
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Jiménez A, Rufo M, Paniagua JM, González-Mohino A, Olegario LS. Authentication of pure and adulterated edible oils using non-destructive ultrasound. Food Chem 2023; 429:136820. [PMID: 37531872 DOI: 10.1016/j.foodchem.2023.136820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 03/12/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023]
Abstract
At present, the quality of edible oil is evaluated using traditional analysis techniques that are generally destructive. Therefore, efforts are being made to find alternative methods with non-destructive techniques such as Ultrasound. This work aims to confirm the feasibility of non-destructive ultrasonic inspection to characterise and detect fraudulent practices in olive oil due to adulteration with two other edible vegetable oils (sunflower and corn). For this purpose, pulsed ultrasonic signals with a frequency of 2.25 MHz have been used. The samples of pure olive oil were adulterated with the other two in variable percentages between 20% and 80%. Moreover, the viscosity and density values were measured. Both these physicochemical and acoustic parameters were obtained at 24 °C and 30 °C and linearly correlated with each other. The results indicate the sensitivity of the method at all levels of adulteration studied. The responses obtained through the parameters related to the components of velocity, attenuation, and frequency of the ultrasonic waves are complementary to each other. This allows concluding that the classification of pure and adulterated oil samples is possible through non-destructive ultrasonic inspection.
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Affiliation(s)
- A Jiménez
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - M Rufo
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - J M Paniagua
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - A González-Mohino
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain.
| | - L S Olegario
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
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13
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Infante R, Infante M, Pastore D, Pacifici F, Chiereghin F, Malatesta G, Donadel G, Tesauro M, Della-Morte D. An Appraisal of the Oleocanthal-Rich Extra Virgin Olive Oil (EVOO) and Its Potential Anticancer and Neuroprotective Properties. Int J Mol Sci 2023; 24:17323. [PMID: 38139152 PMCID: PMC10744258 DOI: 10.3390/ijms242417323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Dietary consumption of olive oil represents a key pillar of the Mediterranean diet, which has been shown to exert beneficial effects on human health, such as the prevention of chronic non-communicable diseases like cancers and neurodegenerative diseases, among others. These health benefits are partly mediated by the high-quality extra virgin olive oil (EVOO), which is produced mostly in Mediterranean countries and is directly made from olives, the fruit of the olive tree (Olea europaea L.). Preclinical evidence supports the existence of antioxidant and anti-inflammatory properties exerted by the polyphenol oleocanthal, which belongs to the EVOO minor polar compound subclass of secoiridoids (like oleuropein). This narrative review aims to describe the antioxidant and anti-inflammatory properties of oleocanthal, as well as the potential anticancer and neuroprotective actions of this polyphenol. Based on recent evidence, we also discuss the reasons underlying the need to include the concentrations of oleocanthal and other polyphenols in the EVOO's nutrition facts label. Finally, we report our personal experience in the production of a certified organic EVOO with a "Protected Designation of Origin" (PDO), which was obtained from olives of three different cultivars (Rotondella, Frantoio, and Leccino) harvested in geographical areas located a short distance from one another (villages' names: Gorga and Camella) within the Southern Italy "Cilento, Vallo di Diano and Alburni National Park" of the Campania Region (Province of Salerno, Italy).
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Affiliation(s)
- Raffaele Infante
- Department of Human Sciences and Quality of Life Promotion, San Raffaele University, 00166 Rome, Italy; (R.I.); (D.P.); (D.D.-M.)
| | - Marco Infante
- Section of Diabetes & Metabolic Disorders, UniCamillus, Saint Camillus International University of Health Sciences, 00131 Rome, Italy
| | - Donatella Pastore
- Department of Human Sciences and Quality of Life Promotion, San Raffaele University, 00166 Rome, Italy; (R.I.); (D.P.); (D.D.-M.)
| | - Francesca Pacifici
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (F.P.); (G.M.); (M.T.)
| | - Francesca Chiereghin
- Department of Human Sciences and Quality of Life Promotion, San Raffaele University, 00166 Rome, Italy; (R.I.); (D.P.); (D.D.-M.)
| | - Gina Malatesta
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (F.P.); (G.M.); (M.T.)
| | - Giulia Donadel
- Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy;
| | - Manfredi Tesauro
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (F.P.); (G.M.); (M.T.)
| | - David Della-Morte
- Department of Human Sciences and Quality of Life Promotion, San Raffaele University, 00166 Rome, Italy; (R.I.); (D.P.); (D.D.-M.)
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, Italy; (F.P.); (G.M.); (M.T.)
- Department of Neurology, Evelyn F. McKnight Brain Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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14
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Pérez M, Dominguez-López I, Lamuela-Raventós RM. The Chemistry Behind the Folin-Ciocalteu Method for the Estimation of (Poly)phenol Content in Food: Total Phenolic Intake in a Mediterranean Dietary Pattern. J Agric Food Chem 2023; 71:17543-17553. [PMID: 37948650 PMCID: PMC10682990 DOI: 10.1021/acs.jafc.3c04022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/29/2023] [Accepted: 10/02/2023] [Indexed: 11/12/2023]
Abstract
The Folin-Ciocalteu assay is a reference method for the quantification of total (poly)phenols in food. This review explains the fundamental mechanism of the redox reaction on which the method is based and looks at some of the practical considerations concerning its application. To accurately estimate the antioxidant capacity of (poly)phenolic compounds, a thorough knowledge of their structural characteristics is essential, as the two are closely associated. Therefore, to help researchers interpret the results of the Folin-Ciocalteu method, this review also summarizes some of the main phenolic structural features. Finally, we have used the Folin-Ciocalteu method to estimate the total phenolic intake associated with high adherence to a Mediterranean diet, ranked as one of the healthiest dietary patterns, which is characterized by a high consumption of (poly)phenol-rich food such as wine, virgin olive oil, fruits, vegetables, whole grains, nuts, and legumes.
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Affiliation(s)
- 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
- Consorcio
CIBER, M.P. Fisiopatología de la Obesidad y Nutrición
(CIBERObn), Instituto de Salud Carlos III
(ISCIII), 28029 Madrid, Spain
| | - Inés Dominguez-López
- 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
- Consorcio
CIBER, M.P. Fisiopatología de la Obesidad y Nutrición
(CIBERObn), Instituto de Salud Carlos III
(ISCIII), 28029 Madrid, Spain
| | - Rosa M. 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
- Consorcio
CIBER, M.P. Fisiopatología de la Obesidad y Nutrición
(CIBERObn), Instituto de Salud Carlos III
(ISCIII), 28029 Madrid, Spain
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15
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Freitas F, Cabrita MJ, da Silva MG. A Critical Review of Analytical Methods for the Quantification of Phthalates Esters in Two Important European Food Products: Olive Oil and Wine. Molecules 2023; 28:7628. [PMID: 38005350 PMCID: PMC10673500 DOI: 10.3390/molecules28227628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Phthalic acid esters (PAEs) are a class of chemicals widely used as plasticizers. These compounds, considered toxic, do not bond to the polymeric matrix of plastic and can, therefore, migrate into the surrounding environment, posing a risk to human health. The primary source of human exposure is food, which can become contaminated during cultivation, production, and packaging. Therefore, it is imperative to control and regulate this exposure. This review covers the analytical methods used for their determination in two economically significant products: olive oil and wine. Additionally, it provides a summary and analysis of information regarding the characteristics, toxicity, effects on human health, and current regulations pertaining to PAEs in food. Various approaches for the extraction, purification, and quantification of these analytes are highlighted. Solvent and sorbent-based extraction techniques are reviewed, as are the chromatographic separation and other methods currently applied in the analysis of PAEs in wines and olive oils. The analysis of these contaminants is challenging due to the complexities of the matrices and the widespread presence of PAEs in analytical laboratories, demanding the implementation of appropriate strategies.
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Affiliation(s)
- Flávia Freitas
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal;
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Maria João Cabrita
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Departamento de Fitotecnia, Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Marco Gomes da Silva
- LAQV/REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal;
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16
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Ezenarro J, García-Pizarro Á, Busto O, de Juan A, Boqué R. Analysing olive ripening with digital image RGB histograms. Anal Chim Acta 2023; 1280:341884. [PMID: 37858563 DOI: 10.1016/j.aca.2023.341884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 10/02/2023] [Accepted: 10/07/2023] [Indexed: 10/21/2023]
Abstract
Digital images are commonly used to monitor processes that are based on colour changes due to their simplicity and easy capture. Colour information in these images can be analysed objectively and accurately using colour histograms. One such process is olive ripening, which is characterized by changes in chemical composition, sensory properties and can be followed by changes in physical appearance, mainly colour. The reference method to quantify the ripeness of olives is the Maturity Index (MI), which is determined by trained experts assigning individual olives into a colour scale through visual inspection. Instead, this study proposes a methodology based on Chemometrics Assisted Colour Histogram-based Analytical Systems (CACHAS) to automatically assess the MI of olives based on R, G, and B colour histograms derived from digital images. The methodology was shown to be easily transferable for routine analysis and capable of controlling the ripening of olives. The study also confirms the high potential of digital images to understand the ripening process of olives (and potentially other fruits) and to predict the MI with satisfactory accuracy, providing an objective and reproducible alternative to visual inspection of trained experts.
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Affiliation(s)
- Jokin Ezenarro
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain
| | - Ángel García-Pizarro
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain; Fruit Production Program, IRTA Mas Bové, Ctra. Reus-El Morell Km 3.8, Constantí, 43120, Spain
| | - Olga Busto
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain
| | - Anna de Juan
- Universitat de Barcelona. Chemometrics Group, Dept. of Chemical Engineering and Analytical Chemistry, Martí i Franqués 1, 08028, Barcelona, Spain
| | - Ricard Boqué
- Universitat Rovira i Virgili. Chemometrics and Sensorics for Analytical Solutions (CHEMOSENS) group, Department of Analytical Chemistry and Organic Chemistry, Campus Sescelades, Edifici N4, C/Marcel⋅lí Domingo 1, Tarragona, 43007, Spain.
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17
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Lobo-Prieto A, Tena N, Aparicio-Ruiz R, Morales MT, García-González DL. Gradual Changes of the Protective Effect of Phenols in Virgin Olive Oils Subjected to Storage and Controlled Stress by Mesh Cell Incubation. J Agric Food Chem 2023; 71:15732-15744. [PMID: 37820072 PMCID: PMC10603807 DOI: 10.1021/acs.jafc.3c04169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/06/2023] [Accepted: 09/13/2023] [Indexed: 10/13/2023]
Abstract
The oxidation reactions that take place in virgin olive oil under moderate conditions involved the combined effect of antioxidant and prooxidant compounds. Given the complexity of oxidation processes of multicomponent matrices, there is still a need to develop new methods with a dynamic approach to study the persistence of the compounds with healthy properties. This work studied the joint evolution of them, including phenols and pheophytin a, modeling their tendency during a real storage. The regression equations performed with the total phenol concentration showed that around 2% of the concentration was lost every month. Simultaneously, the progress of oxidation was evaluated by mesh cell incubation and Fourier transform infrared analysis. This method pointed out that, in the presence of light, the prooxidant effect of pigments was able to mask the protective effect of phenols, until the pheophytin a concentration was lower than 1 mg/kg. The antioxidant effect of phenols was less remarkable when the concentration loss was 35% or more.
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Affiliation(s)
- Ana Lobo-Prieto
- Departamento
de Química Analítica, Facultad de Farmacia, Universidad de Sevilla, Prof. García González, 2, 41012 Sevilla, Spain
- Pablo
de Olavide University, Ctra. de Utrera, km 1, 41013 Sevilla, Spain
| | - Noelia Tena
- Departamento
de Química Analítica, Facultad de Farmacia, Universidad de Sevilla, Prof. García González, 2, 41012 Sevilla, Spain
| | - Ramón Aparicio-Ruiz
- Departamento
de Química Analítica, Facultad de Farmacia, Universidad de Sevilla, Prof. García González, 2, 41012 Sevilla, Spain
| | - María Teresa Morales
- Departamento
de Química Analítica, Facultad de Farmacia, Universidad de Sevilla, Prof. García González, 2, 41012 Sevilla, Spain
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18
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Hernández ML, Muñoz-Ocaña C, Posada P, Sicardo MD, Hornero-Méndez D, Gómez-Coca RB, Belaj A, Moreda W, Martínez-Rivas JM. Functional Characterization of Four Olive Squalene Synthases with Respect to the Squalene Content of the Virgin Olive Oil. J Agric Food Chem 2023; 71:15701-15712. [PMID: 37815987 PMCID: PMC10723762 DOI: 10.1021/acs.jafc.3c05322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/12/2023] [Accepted: 09/25/2023] [Indexed: 10/12/2023]
Abstract
The release of new olive cultivars with an increased squalene content in their virgin olive oil is considered an important target in olive breeding programs. In this work, the variability of the squalene content in a core collection of 36 olive cultivars was first studied, revealing two olive cultivars, 'Dokkar' and 'Klon-14', with extremely low and high squalene contents in their oils, respectively. Next, four cDNA sequences encoding squalene synthases (SQS) were cloned from olive. Sequence analysis and functional expression in bacteria confirmed that they encode squalene synthases. Transcriptional analysis in distinct olive tissues and cultivars indicated that expression levels of these four SQS genes are spatially and temporally regulated in a cultivar-dependent manner and pointed to OeSQS2 as the gene mainly involved in squalene biosynthesis in olive mesocarp and, therefore, in the olive oil. In addition, the biosynthesis of squalene appears to be transcriptionally regulated in water-stressed olive mesocarp.
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Affiliation(s)
- M. Luisa Hernández
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
| | - Cristina Muñoz-Ocaña
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
| | - Pilar Posada
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
| | - M. Dolores Sicardo
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
| | - Dámaso Hornero-Méndez
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
| | - Raquel B. Gómez-Coca
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
| | - Angjelina Belaj
- IFAPA
Centro Alameda del Obispo, Avda. Menéndez Pidal s/n, 14080 Córdoba, Spain
| | - Wenceslao Moreda
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
| | - José M. Martínez-Rivas
- Instituto
de la Grasa (IG-CSIC), Campus Universitario Pablo de Olavide, Building 46, Ctra. Utrera Km.1, 41013 Sevilla, Spain
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19
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Peres F, Marques MP, Mourato M, Martins LL, Ferreira-Dias S. Ultrasound Assisted Coextraction of Cornicabra Olives and Thyme to Obtain Flavored Olive Oils. Molecules 2023; 28:6898. [PMID: 37836741 PMCID: PMC10574346 DOI: 10.3390/molecules28196898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Flavoring olive oils is a new trend in consumer preferences, and different enrichment techniques can be used. Coextraction of olives with a flavoring agent is an option for obtaining a flavored product without the need for further operations. Moreover, ultrasound (US) assisted extraction is an emergent technology able to increase extractability. Combining US and coextraction, it is possible to obtain new products using different types of olives (e.g., cultivar and ripening stage), ingredient(s) with the greatest flavoring and/or bioactive potential, as well as extraction conditions. In the present study, mastic thyme (Thymus mastichina L.) (TM) and lemon thyme (Thymus x citriodorus) (TC) were used for flavoring Cornicabra oils by coextraction. The coextraction trials were performed by (i) thyme addition to the olives during crushing or malaxation and (ii) US application before malaxation. Several parameters were evaluated in the oil: quality criteria parameters, total phenols, fatty acid composition, chlorophyll pigments, phenolic profile and oxidative stability. US application did not change the phenolic profile of Cornicabra olive oils, while the enrichment of olive oils with phenolic compounds or pigments by coextraction was very dependent on the thyme used. TM enrichment showed an improvement of several new phenolic compounds in the oils, while with TC, fewer new phenols were observed. In turn, in the trials with TC, the extraction of chlorophyll pigments was higher, particularly in crushing coprocessing. Moreover, the oils obtained with US and TM added in the mill or in the malaxator showed lower phenol decrease (59%) than oils flavored with TC (76% decrease) or Cornicabra virgin olive oil (80% decrease) over an 8-month storage period. Multivariate data analysis, considering quality parameters, pigments and phenolic contents, showed that flavored oils were mainly grouped by age.
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Affiliation(s)
- Fátima Peres
- Instituto Politécnico de Castelo Branco, Escola Superior Agrária, 6000-909 Castelo Branco, Portugal;
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Madalena Pinho Marques
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Miguel Mourato
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Luisa L. Martins
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
| | - Suzana Ferreira-Dias
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; (M.P.M.); (M.M.); (L.L.M.)
- Laboratório de Estudos Técnicos, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
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20
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Ansar A, Ahmad N, Albqmi M, Saleem M, Ali H. Thermal Effects on the Quality Parameters of Extra Virgin Olive Oil Using Fluorescence Spectroscopy. J Fluoresc 2023; 33:1749-1760. [PMID: 36826729 DOI: 10.1007/s10895-023-03186-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/15/2023] [Indexed: 02/25/2023]
Abstract
Extra virgin olive oil is one of the superlative due to its health benefits. In this work, the Fluorescence spectra of extra virgin olive oil (EVOO) from different olive growing regions of Pakistan and Al-Jouf region from the Kingdom of Saudi Arabia (KSA) were obtained. The emission bands depicted relative intensity variations in all non-heated and heated EVOO samples. Prominent emission bands at 385, 400, 435 and 470 nm represent oxidized products of fatty acids, bands at 520 and 673 nm has been assigned to beta carotene and chlorophyll isomers respectively. All EVOO samples collected from Al-Jouf region, KSA and from Pakistan (Loralai Baluchistan, Barani Agricultural Research Institute, Chakwal and Morgha Biodiversity Park, Rawalpindi) regions showed thermal stability. Other EVOO samples from Chaman Baluchistan and one sample from wild specie (Baluchistan) bought directly from farmers showed denatured spectra even without heating. Chemical characteristics of all EVOO samples changed significantly at 200 °C. Relatively, EVOO samples from Al-Jouf showed more thermal stability which might be due to geographical distribution, environmental effects, genetic background and processing or storage conditions. These results demonstrated fluorescence spectroscopy as a quick, cost-effective and reliable approach to assess the quality and thermal stability of EVOO. These characteristics of fluorescence spectroscopy may lead to the development of portable device for the onsite monitoring of EVOO.
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Affiliation(s)
- Areeba Ansar
- National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, 45650, Islamabad, Pakistan
- Department of Physics, Mirpur University of Science and Technology (MUST), Mirpur, 10250, Azad Jammu and Kashmir, Pakistan
| | - Naveed Ahmad
- Department of Physics, Mirpur University of Science and Technology (MUST), Mirpur, 10250, Azad Jammu and Kashmir, Pakistan.
| | - Mha Albqmi
- Chemistry Department, College of Science and Arts, Jouf University, Alqurayyat, Saudi Arabia
| | - Muhammad Saleem
- National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, 45650, Islamabad, Pakistan
| | - Hina Ali
- National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, 45650, Islamabad, Pakistan
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21
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Rivas-Garcia L, Navarro-Hortal MD, Romero-Marquez JM, Llopis J, Forbes-Hernández TY, Xiao J, Quiles JL, Sanchez-Gonzalez C. Valorization of Olea europaea and olive oil processing by-products/wastes. Adv Food Nutr Res 2023; 107:193-212. [PMID: 37898540 DOI: 10.1016/bs.afnr.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/30/2023]
Abstract
Olive (Olea europaea) is a native species from the Mediterranean region and widely cultivated for its edible fruit, known as olives. Olives are a rich source of monounsaturated fatty acids, vitamin E, and polyphenols, and have been shown to have various health benefits. They are commonly used for cooking and are also employed in cosmetics and the pharmaceutical industry. The extract obtained from olive fruits and several subproducts of the olive industry has demonstrated several biological activities mainly associated with their antioxidant and inflammatory properties. Thus, olives, olive-derived products, and subproducts of the olive industry have gained popularity in recent years due to their potential health benefits and their use in traditional medicine. The present chapter summarizes the main applications of Olea europaea and olive oil processing by-products as therapeutic agents against cancer, cardiovascular diseases, and antimicrobial agents.
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Affiliation(s)
- Lorenzo Rivas-Garcia
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Centre, University of Granada, Armilla, Granada, Spain; Sport and Health Research Centre, University of Granada, Armilla, Granada, Spain.
| | - Maria D Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Centre, University of Granada, Armilla, Granada, Spain
| | - Jose M Romero-Marquez
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Centre, University of Granada, Armilla, Granada, Spain
| | - Juan Llopis
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Centre, University of Granada, Armilla, Granada, Spain; Sport and Health Research Centre, University of Granada, Armilla, Granada, Spain
| | - Tamara Y Forbes-Hernández
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Centre, University of Granada, Armilla, Granada, Spain
| | - Jianbo Xiao
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo-Ourense Campus, Ourense E, Spain
| | - Jose L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Centre, University of Granada, Armilla, Granada, Spain; Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain
| | - Cristina Sanchez-Gonzalez
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix Verdú", Biomedical Research Centre, University of Granada, Armilla, Granada, Spain; Sport and Health Research Centre, University of Granada, Armilla, Granada, Spain
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22
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Hamdy O, Mohammed HS. Post-heating Fluorescence-based Alteration and Adulteration Detection of Extra Virgin Olive Oil. J Fluoresc 2023; 33:1631-1639. [PMID: 36808529 PMCID: PMC10361879 DOI: 10.1007/s10895-023-03165-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 02/01/2023] [Indexed: 02/21/2023]
Abstract
Olive oils are more expensive compared with other vegetable oils. Therefore, adulterating such expensive oil is prevalent. The traditional methods for olive oil adulteration detection are complex and require pre-analysis sample preparation. Therefore, simple and precise alternative techniques are required. In the present study, the Laser-induced fluorescence (LIF) technique was implemented for detecting alteration and adulteration of olive oil mixed with sunflower or corn oil based on the post-heating emission characteristics. Diode-pumped solid-state laser (DPSS, λ = 405 nm) was employed for excitation and the fluorescence emission was detected via an optical fiber connected to a compact spectrometer. The obtained results revealed alterations in the recorded chlorophyll peak intensity due to olive oil heating and adulteration. The correlation of the experimental measurements was evaluated via partial least-squares regression (PLSR) with an R-squared value of 0.95. Moreover, the system performance was evaluated using receiver operating characteristics (ROC) with a maximum sensitivity of 93%.
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Affiliation(s)
- Omnia Hamdy
- Engineering Applications of Lasers Department, National Institute of Laser Enhanced Sciences, Cairo University, Giza, 12613, Egypt.
| | - Haitham S Mohammed
- Biophysics Department, Faculty of Science, Cairo University, Giza, 12613, Egypt
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23
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Torres-Cobos B, Quintanilla-Casas B, Vicario G, Guardiola F, Tres A, Vichi S. Revealing adulterated olive oils by triacylglycerol screening methods: Beyond the official method. Food Chem 2023; 409:135256. [PMID: 36586257 DOI: 10.1016/j.foodchem.2022.135256] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/01/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Official control methods to detect olive oil (OO) adulteration fail to provide satisfactory consumer protection. Thus, faster and more sensitive screening tools are needed to increase their effectiveness. Here, the official method for adulterant detection in OO was compared with three untargeted screening methods based on triacylglycerol analysis using high-throughput (FIA-HESI-HRMS; HT-GC-MS; HPLC-RID) and pattern recognition techniques (PLS-DA). They were assayed on a set of genuine and adulterated samples with a high natural variability (n = 143). The sensitivity of the official method was 1 for high linoleic (HL) blends at ≥2 % but only 0.39 for high oleic (HO) blends at ≥5 %, while specificity was 0.96. The sensitivity of the screening methods in external validation was 0.90-0.99 for the detection of HL and 0.82-0.88 for HO blends. Among them, HT-GC-MS offered the highest sensitivity (0.94) and specificity (0.76), proving to be the most suitable screening tool for OO authentication.
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Affiliation(s)
- Berta Torres-Cobos
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Campus De l'Alimentació Torribera, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Santa Coloma de Gramenet, Spain; Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona, Av Prat de la Riba, 171, 08921 Santa Coloma de Gramenet, Spain
| | - Beatriz Quintanilla-Casas
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Campus De l'Alimentació Torribera, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Santa Coloma de Gramenet, Spain; Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona, Av Prat de la Riba, 171, 08921 Santa Coloma de Gramenet, Spain.
| | - Giulia Vicario
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Campus De l'Alimentació Torribera, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Santa Coloma de Gramenet, Spain
| | - Francesc Guardiola
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Campus De l'Alimentació Torribera, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Santa Coloma de Gramenet, Spain; Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona, Av Prat de la Riba, 171, 08921 Santa Coloma de Gramenet, Spain
| | - Alba Tres
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Campus De l'Alimentació Torribera, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Santa Coloma de Gramenet, Spain; Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona, Av Prat de la Riba, 171, 08921 Santa Coloma de Gramenet, Spain
| | - Stefania Vichi
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Campus De l'Alimentació Torribera, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Santa Coloma de Gramenet, Spain; Institut de Recerca en Nutrició i Seguretat Alimentària (INSA-UB), Universitat de Barcelona, Av Prat de la Riba, 171, 08921 Santa Coloma de Gramenet, Spain
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24
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Sakin AE, Mert C, Tasdemir Y. PAHs, PCBs and OCPs in olive oil during the fruit ripening period of olive fruits. Environ Geochem Health 2023; 45:1739-1755. [PMID: 35635681 DOI: 10.1007/s10653-022-01297-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
Because of their possible carcinogenic effects, it is crucial to determine levels of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in olive oils. However, there are a few studies about these pollutants' levels in olive oils and no other studies reported PAHs, PCBs and OCPs at the same time and during the ripening period of olives in olive oils. A modified clean-up technique was successfully applied for eliminating lipidic components. Additionally, this study does not just report the concentrations of these pollutants but also inspects the sources depending on the actual sampling site. Also, PCBs and OCPs carcinogenic risks in olive oil were reported for the first time in the literature. This study aims to present levels, carcinogenic risks, sources and concentration changes during the ripening period of these pollutants in olive oil. For this purpose, fruit samples for oil extraction were collected between the beginning of the fruit ripening and harvest period. Obtained olive oils from the fruits were extracted and cleaned up using the QuEChERS method. GC-MS and GC-ECD were used for the quantitative analysis of the targeted pollutants. The average concentrations for ∑16PAHs, ∑37PCBs and ∑10OCPs were 222.48 ± 133.76 μg/kg, 58.26 ± 21.64 μg/kg and 25.48 ± 19.55 μg/kg, respectively. During the harvest period, the concentrations were in a decreasing trend. Calculated carcinogenic risks were above acceptable limits for all groups and traffic, wood-coal burning, atmospheric transport and previous uses were the main sources. Results of the source determination indicated that some possible sources could be prevented with regulations and precautions.
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Affiliation(s)
- A Egemen Sakin
- Science and Technology Application and Research Centre BITUAM, Bursa Uludag University, 16059, Nilufer, Bursa, Turkey
| | - Cevriye Mert
- Department of Horticulture, Faculty of Agriculture, Bursa Uludag University, 16059, Nilufer, Bursa, Turkey
| | - Yücel Tasdemir
- Department of Environmental Engineering, Faculty of Engineering, Bursa Uludag University, 16059, Nilufer, Bursa, Turkey.
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25
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Heras NDL, Galiana A, Ballesteros S, Quintela JC, Bonilauri I, Lahera V, Martín-Fernández B. Polyphenols and Triterpenes Combination in an In Vitro Model of Cardiac Damage: Protective Effects. Int J Mol Sci 2023; 24:7977. [PMID: 37175685 PMCID: PMC10178477 DOI: 10.3390/ijms24097977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/23/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Olive products contain high levels of monounsaturated fatty acids as well as other minor components such as triterpenic alcohols and other pentacyclic triterpenes, which together form the main triterpenes of virgin olive oil. Olive fruits and leaves contain significant amounts of hydrophilic and lipophilic bioactives including flavones, phenolic acids and phenolic alcohols, amongst others. Several studies have shown the benefits of these substances on the cardiovascular system. Regardless, little is known about the specific combination of bioactive compounds in cardiovascular health. Thus, we aimed to test the combination of a triterpenes (TT70) and a polyphenols (HT60) olive oil bioactive extract in H9c2 cells under stress conditions: LPS and H2O2 stimulation. To evaluate the effectiveness of the combination, we measured cell viability, superoxide production and protein expression of caspase 3, eNOS, peNOS, TNF-α and Il-6. Overall, cells stimulated with LPS or H2O2 and co-incubated with the combination of triterpenes and polyphenols had increased cell survival, lower levels of superoxide anion, lower protein expression of eNOS and higher expression of peNOS, increased protein expression of SOD-1 and lower protein expression of TNF-α and Il-6. The specific combination of HT60+TT70 is of great interest for further study as a possible treatment for cardiovascular damage.
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Affiliation(s)
- Natalia de las Heras
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n, Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (V.L.)
| | - Adrián Galiana
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n, Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (V.L.)
| | - Sandra Ballesteros
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n, Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (V.L.)
| | | | - Ileana Bonilauri
- Department of Molecular Biology, Faculty of Biology, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain
| | - Vicente Lahera
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n, Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (V.L.)
| | - Beatriz Martín-Fernández
- Department of Physiology, Faculty of Medicine, Plaza Ramón y Cajal, s/n, Universidad Complutense, 28040 Madrid, Spain; (N.d.l.H.); (A.G.); (S.B.); (V.L.)
- Scientific Department, Natac Biotech, 28923 Madrid, Spain;
- Department of Molecular Biology, Faculty of Biology, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain
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26
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Morales-Sillero A, Jiménez MR, Suárez MP, Rallo P, Casanova L. Mechanical harvesting at dawn in a super-high-density table olive orchard: effect on the quality of fruits. J Sci Food Agric 2023; 103:2989-2996. [PMID: 36510840 DOI: 10.1002/jsfa.12384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/03/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Mechanical harvesting with over-the-row harvesters in super-high-density (SHD) table olive orchards increases the effectiveness of fruit removal, although bruising can limit the fruit quality. Additionally, an early harvest in periods less favourable to quality production is increasingly frequent as a result of global warming. The present study explores the impact on olive quality of harvesting at dawn when the environmental temperature is low. The study was carried out for 2 years on two cultivars with different tolerance to bruising ('Manzanilla de Sevilla' and 'Manzanilla Cacereña'), grown in SHD conditions and harvested at two timepoints: dawn and morning. RESULTS Fruit morphology was not modified by the moment of harvest in either of the cultivars. Fruit harvested at dawn produced less CO2 and ethylene and was less damaged externally and internally compared to fruit harvested in the morning. However, environmental conditions throughout development influenced the response because the highest values of bruising (incidence, area and volume of damaged area), total internal damage and the number of tissue ruptures increased in the year with the hottest summer, and the differences between harvest treatments were less evident. CONCLUSION Mechanical harvesting at dawn contributes to reducing the damage in olive fruit. © 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
| | | | - María Paz Suárez
- Departamento de Agronomía, ETSIA, Universidad de Sevilla, Sevilla, Spain
| | - Pilar Rallo
- Departamento de Agronomía, ETSIA, Universidad de Sevilla, Sevilla, Spain
| | - Laura Casanova
- Departamento de Agronomía, ETSIA, Universidad de Sevilla, Sevilla, Spain
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27
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Nenadis N, Pyrka I, Tsimidou MZ. The Contribution of Theoretical Prediction Studies to the Antioxidant Activity Assessment of the Bioactive Secoiridoids Encountered in Olive Tree Products and By-Products. Molecules 2023; 28:2267. [PMID: 36903511 PMCID: PMC10005156 DOI: 10.3390/molecules28052267] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 02/21/2023] [Indexed: 03/05/2023] Open
Abstract
Assessment of the antioxidant activity of different types of natural compounds is a complex research area that encompasses various in vitro tests and in vivo studies. Sophisticated modern analytical tools permit the unambiguous characterization of the compounds present in a matrix. The contemporary researcher, knowing the chemical structure of the compounds present, can carry out quantum chemical calculations that provide important physicochemical information assisting the prediction of antioxidant potential and the mechanism behind the activity of target compounds before further experimentation. The efficiency of calculations is steadily improved due to the rapid evolution of both hardware and software. It is possible, consequently, to study compounds of medium or even larger size, incorporating also models that simulate the liquid phase (solution). This review contributes to the establishment of theoretical calculations as an inherent part of the antioxidant activity assessment process, having as a case study the complex mixtures of olive bioactive secoiridoids (oleuropein, ligstroside, and related compounds). The literature indicates great variability in theoretical approaches and models used so far for only a limited number of this group of phenolic compounds. Proposals are made for standardization of methodology (reference compounds, DFT functional, basis set size, and solvation model) to facilitate comparisons and communication of findings.
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Affiliation(s)
| | | | - Maria Z. Tsimidou
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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28
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De Vito R, Fiori F, Ferraroni M, Cavalli S, Caporali R, Ingegnoli F, Parpinel M, Edefonti V. Olive Oil and Nuts in Rheumatoid Arthritis Disease Activity. Nutrients 2023; 15:963. [PMID: 36839323 PMCID: PMC9962234 DOI: 10.3390/nu15040963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/06/2023] [Accepted: 02/11/2023] [Indexed: 02/17/2023] Open
Abstract
Few observational studies investigated the relationship between single food groups and disease activity in rheumatoid arthritis (RA). Within a recent Italian cross-sectional study (365 patients, median age: 58.46 years, 78.63% females), we focused on two food groups, olive oil and nuts, representing vegetable sources of fatty acids. Disease activity was measured with Disease Activity Score on 28 joints based on C-reactive protein (DAS28-CRP) and the Simplified Disease Activity Index (SDAI). Robust linear and logistic regression models included tertile-based consumption categories of each food group and several confounders. Stratified analyses were performed by disease severity or duration. Higher consumption of both food groups exerted a favorable effect on disease activity, significant only for olive oil (Beta: -0.33, p-value: 0.03) in the linear regression on the overall sample. This favorable effect was stronger in the more severe or long-standing forms of RA (p-value for heterogeneity <0.05, especially for disease severity). Significant ORs were as low as ~0.30 for both food groups, strata (i.e., more severe and long-standing RA), and disease activity measures. Mean DAS28-CRP significantly decreased by ~0.70 for olive oil and ~0.55 for nuts in the two strata; mean SDAI significantly decreased by 3.30 or more for olive oil in the two strata. Globally, the beta coefficients doubled, and the ORs halved (in absolute values) for both food groups, reaching significance in 12 of the 16 available models fitted to the more severe or long-standing RA strata. More compromised forms of RA may benefit from increasing consumption of olive oil, olives, and nuts.
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Affiliation(s)
- Roberta De Vito
- Department of Biostatistics and Data Science Initiative, Brown University, 121 South Main Street and 164 Angell Street, Providence, RI 02912, USA
| | - Federica Fiori
- Department of Medicine—DAME, University of Udine, Via Colugna 50, 33100 Udine, Italy
| | - Monica Ferraroni
- Branch of Medical Statistics, Biometry, and Epidemiology “G.A. Maccacaro”, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via Celoria 22, 20133 Milan, Italy
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Sforza 35, 20122 Milan, Italy
| | - Silvia Cavalli
- Clinical Rheumatology Unit, ASST Gaetano Pini, Department of Clinical Sciences and Community Health, Research Center for Adult and Pediatric Rheumatic Diseases, Università degli Studi di Milano, 20122 Milan, Italy
| | - Roberto Caporali
- Clinical Rheumatology Unit, ASST Gaetano Pini, Department of Clinical Sciences and Community Health, Research Center for Adult and Pediatric Rheumatic Diseases, Università degli Studi di Milano, 20122 Milan, Italy
| | - Francesca Ingegnoli
- Clinical Rheumatology Unit, ASST Gaetano Pini, Department of Clinical Sciences and Community Health, Research Center for Adult and Pediatric Rheumatic Diseases, Università degli Studi di Milano, 20122 Milan, Italy
| | - Maria Parpinel
- Department of Medicine—DAME, University of Udine, Via Colugna 50, 33100 Udine, Italy
| | - Valeria Edefonti
- Branch of Medical Statistics, Biometry, and Epidemiology “G.A. Maccacaro”, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via Celoria 22, 20133 Milan, Italy
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Via Sforza 35, 20122 Milan, Italy
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Melendreras C, Soldado A, Costa-Fernández JM, López A, Valledor M, Campo JC, Ferrero F. An Affordable NIR Spectroscopic System for Fraud Detection in Olive Oil. Sensors (Basel) 2023; 23:1728. [PMID: 36772764 PMCID: PMC9920304 DOI: 10.3390/s23031728] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Adulterations of olive oil are performed by adding seed oils to this high-quality product, which are cheaper than olive oils. Food safety controls have been established by the European Union to avoid these episodes. Most of these methodologies require expensive equipment, time-consuming procedures, and expert personnel to execute. Near-infrared spectroscopy (NIRS) technology has many applications in the food processing industry. It analyzes food safety and quality parameters along the food chain. Using principal component analysis (PCA), the differences and similarities between olive oil and seed oils (sesame, sunflower, and flax oil) have been evaluated. To quantify the percentage of adulterated seed oil in olive oils, partial least squares (PLS) have been employed. A total of 96 samples of olive oil adulterated with seed oils were prepared. These samples were used to build a spectra library covering various mixtures containing seed oils and olive oil contents. Eighteen chemometric models were developed by combining the first and second derivatives with Standard Normal Variable (SNV) for scatter correction to classify and quantify seed oil adulteration and percentage. The results obtained for all seed oils show excellent coefficients of determination for calibration higher than 0.80. Because the instrumental aspects are not generally sufficiently addressed in the articles, we include a specific section on some key aspects of developing a high-performance and cost-effective NIR spectroscopy solution for fraud detection in olive oil. First, spectroscopy architectures are introduced, especially the Texas Instruments Digital Light Processing (DLP) technology for spectroscopy that has been used in this work. These results demonstrate that the portable prototype can be used as an effective tool to detect food fraud in liquid samples.
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Affiliation(s)
- Candela Melendreras
- Department of Physical and Analytical Chemistry, University of Oviedo, 33006 Oviedo, Spain
| | - Ana Soldado
- Department of Physical and Analytical Chemistry, University of Oviedo, 33006 Oviedo, Spain
| | | | - Alberto López
- Department of Electrical Engineering, University of Oviedo, 33204 Gijón, Spain
| | - Marta Valledor
- Department of Electrical Engineering, University of Oviedo, 33204 Gijón, Spain
| | - Juan Carlos Campo
- Department of Electrical Engineering, University of Oviedo, 33204 Gijón, Spain
| | - Francisco Ferrero
- Department of Electrical Engineering, University of Oviedo, 33204 Gijón, Spain
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30
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Custodio-Mendoza JA, Sendón R, de Quirós ARB, Lorenzo RA, Carro AM. Development of a QuEChERS method for simultaneous analysis of 3-Monochloropropane-1,2-diol monoesters and Glycidyl esters in edible oils and margarine by LC-APCI-MS/MS. Anal Chim Acta 2023; 1239:340712. [PMID: 36628717 DOI: 10.1016/j.aca.2022.340712] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
A simple, fast and effective direct method based on HPLC-APCI-QqQ-MS/MS has been developed to simultaneously determine four 3-monochloropropane-1,2-diol monoesters (3-MCPDE) esterified with palmitic, linoleic, stearic, and oleic acid, and two glycidyl esters (GE) with palmitic and oleic acid in margarine and olive oil using a QuEChERS approach. Factors affecting the efficiency of the extraction process were assessed, including type and amount of salt, extraction solvent, test portion amount, and clean-up sorbent. The analytical method was validated according to Food and Drug Administration (FDA) guidelines using matrix-matched calibration with internal standards and showed good results in terms of linearity (r2 > 0.9992), accuracy (80<Recovery<120%), and precision (RSD<15%). The method was successfully applied for the first time to 11 margarine samples for simultaneous analysis of 3-MCPDE and GE.
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Affiliation(s)
- Jorge A Custodio-Mendoza
- Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| | - Raquel Sendón
- Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Ana Rodríguez-Bernaldo de Quirós
- Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Rosa A Lorenzo
- Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Antonia M Carro
- Department of Analytical Chemistry, Nutrition and Food Science, University of Santiago de Compostela, 15782, Santiago de Compostela, Spain; Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15782, Santiago de Compostela, Spain; Instituto de Materiais (iMATUS), University of Santiago de Compostela, 15782, Santiago de Compostela, Spain.
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31
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Ordoudi SA, Strani L, Cocchi M. Toward the Non-Targeted Detection of Adulterated Virgin Olive Oil with Edible Oils via FTIR Spectroscopy & Chemometrics: Research Methodology Trends, Gaps and Future Perspectives. Molecules 2023; 28:molecules28010337. [PMID: 36615530 PMCID: PMC9822006 DOI: 10.3390/molecules28010337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/23/2022] [Accepted: 12/23/2022] [Indexed: 01/04/2023]
Abstract
Fourier-Transform mid-infrared (FTIR) spectroscopy offers a strong candidate screening tool for rapid, non-destructive and early detection of unauthorized virgin olive oil blends with other edible oils. Potential applications to the official anti-fraud control are supported by dozens of research articles with a "proof-of-concept" study approach through different chemometric workflows for comprehensive spectral analysis. It may also assist non-targeted authenticity testing, an emerging goal for modern food fraud inspection systems. Hence, FTIR-based methods need to be standardized and validated to be accepted by the olive industry and official regulators. Thus far, several literature reviews evaluated the competence of FTIR standalone or compared with other vibrational techniques only in view of the chemometric methodology, regardless of the inherent characteristics of the product spectra or the application scope. Regarding authenticity testing, every step of the methodology workflow, and not only the post-acquisition steps, need thorough validation. In this context, the present review investigates the progress in the research methodology on FTIR-based detection of virgin olive oil adulteration over a period of more than 25 years with the aim to capture the trends, identify gaps or misuses in the existing literature and highlight intriguing topics for future studies. An extensive search in Scopus, Web of Science and Google Scholar, combined with bibliometric analysis, helped to extract qualitative and quantitative information from publication sources. Our findings verified that intercomparison of literature results is often impossible; sampling design, FTIR spectral acquisition and performance evaluation are critical methodological issues that need more specific guidance and criteria for application to product authenticity testing.
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Affiliation(s)
- Stella A. Ordoudi
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki (AUTh), GR-54124 Thessaloniki, Greece
- Correspondence:
| | - Lorenzo Strani
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia (UNIMORE), Via Campi 103, 41125 Modena, Italy
| | - Marina Cocchi
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia (UNIMORE), Via Campi 103, 41125 Modena, Italy
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Fattoum H, Cherif AO, Trabelsi S, Messaouda MB. Identification of Phenolic Compounds Extracted from OMW Using LC-MS. J Oleo Sci 2023; 72:1113-1123. [PMID: 38044135 DOI: 10.5650/jos.ess23109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023] Open
Abstract
The extraction of olive oil produces annually huge quantities of Olive Mill Wastewater (OMW) that are considered as a source of pollution due to their high concentration in organic matter. This study aims to valorize Olive mill wastewater and investigates the effect of the extraction method and solvents on the contents and profiling of phenolic compounds and their antioxidant potential. It was revealed that the liquid-liquid method using ethyl acetate is the most effective followed by the maceration using chloroform/methanol (1:1), their polyphenol contents are respectively at 1.17 g GAE/L of OMW and 1.07 g GAE/L of OMW. In addition, the antioxidant activity was studied using ABTS test. It has shown that the methanolic extract has the best antioxidant activity at 15.75 mg/L. Moreover, we noticed a negative correlation between the phenolic compounds' concentration and their antioxidant activity which indicates that the phenolic profile may not be the same in the different extracts that's why a primary identification of the phenolic profile using UHPLC-MS was monitored and the results showed different chromatographic profiles between the samples.
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Affiliation(s)
- Hanna Fattoum
- Laboratory Materials Molecules and Applications LR11ES22, University of Carthage
- Faculty of Sciences of Gafsa, University of Gafsa
| | - Aicha O Cherif
- Laboratory Materials Molecules and Applications LR11ES22, University of Carthage
| | | | - Mhamed Ben Messaouda
- Laboratory Materials Molecules and Applications LR11ES22, University of Carthage
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Santana LF, do Espirito Santo BLS, Tatara MB, Negrão FJ, Croda J, Alves FM, de Oliveira Filiú WF, Cavalheiro LF, Nazário CED, Asato MA, de Faria BB, do Nascimento VA, de Cássia Avellaneda Guimarães R, de Cássia Freitas K, Hiane PA. Effects of the Seed Oil of Carica papaya Linn on Food Consumption, Adiposity, Metabolic and Inflammatory Profile of Mice Using Hyperlipidic Diet. Molecules 2022; 27:molecules27196705. [PMID: 36235241 PMCID: PMC9570947 DOI: 10.3390/molecules27196705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/07/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Studies indicate that different parts of Carica papaya Linn have nutritional properties that mean it can be used as an adjuvant for the treatment of various pathologies. METHODS The fatty acid composition of the oil extracted from the seeds of Carica papaya Linn was evaluated by gas chromatography, and an acute toxicity test was performed. For the experiment, Swiss mice were fed a balanced or high-fat diet and supplemented with saline, soybean oil, olive oil, or papaya seed oil. Oral glucose tolerance and insulin sensitivity tests were performed. After euthanasia, adiposity, glycemia, total cholesterol and fractions, insulin, resistin, leptin, MCP-1, TNF-α, and IL-6 and the histology of the liver, pancreas, and adipose tissue were evaluated. RESULTS Papaya seed oil showed predominance of monounsaturated fatty acids in its composition. No changes were observed in the acute toxicity test. Had lower food intake in grams, and caloric intake and in the area of adipocytes without minimizing weight gain or adiposity and impacting the liver or pancreas. Reductions in total and non-HDL-c, LDL-c, and VLDL-c were also observed. The treatment had a hypoglycemic and protective effect on insulin resistance. Supplementation also resulted in higher leptin and lower insulin and cytokine resistance. CONCLUSIONS Under these experimental conditions, papaya seed oil led to higher amounts of monounsaturated fatty acids and had hypocholesterolemic, hypotriglyceridemic, and hypoglycemic effects.
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Affiliation(s)
- Lidiani Figueiredo Santana
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil
| | - Bruna Larissa Spontoni do Espirito Santo
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil
| | - Mariana Bento Tatara
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, Brazil
| | - Fábio Juliano Negrão
- Health Science Research Laboratory, Federal University of Grande Dourados, Dourados 79804-970, Brazil
| | - Júlio Croda
- Oswaldo Cruz Foundation, Campo Grande 79074-460, Brazil
| | - Flávio Macedo Alves
- Laboratory of Botany, Institute of Biosciences, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil
| | - Wander Fernando de Oliveira Filiú
- Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79079-900, Brazil
| | | | | | - Marcel Arakaki Asato
- Medical School, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil
| | | | - Valter Aragão do Nascimento
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil
| | - Rita de Cássia Avellaneda Guimarães
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil
| | - Karine de Cássia Freitas
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil
- Correspondence: ; Tel.: +55-67-3345-7410
| | - Priscila Aiko Hiane
- Graduate Program in Health and Development in the Central-West Region of Brazil, Federal University of Mato Grosso do Sul (UFMS), Campo Grande 79070-900, Brazil
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34
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Mariotti R, Núñez-Carmona E, Genzardi D, Pandolfi S, Sberveglieri V, Mousavi S. Volatile Olfactory Profiles of Umbrian Extra Virgin Olive Oils and Their Discrimination through MOX Chemical Sensors. Sensors (Basel) 2022; 22:7164. [PMID: 36236259 PMCID: PMC9572317 DOI: 10.3390/s22197164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/12/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Extra virgin olive oil (EVOO) is the best vegetable oil worldwide but, at the same time, is one of the product victims of fraud in the agri-food sector, and the differences about quality within the extra-virgin olive oil category are often missed. Several scientific techniques were applied in order to guarantee the authenticity and quality of this EVOO. In the present study, the volatile compounds (VOCs) by gas chromatography-mass spectrometry with solid-phase micro-extraction detection (GC-MS SPME), organoleptic analysis by the official Slow Food panel and the detection by a Small Sensor System (S3) were applied. Ten EVOOs from Umbria, a central Italian region, were selected from the 2021 Slow Food Italian extra virgin olive oil official guide, which includes hundreds of high-quality olive oils. The results demonstrated the possibility to discriminate the ten EVOOs, even if they belong to the same Italian region, by all three techniques. The result of GC-MS SPME detection was comparable at the discrimination level to the organoleptic test with few exceptions, while the S3 was able to better separate some EVOOs, which were not discriminated perfectly by the other two methods. The correlation analysis performed among and between the three methodologies allowed us to identify 388 strong associations with a p value less than 0.05. This study has highlighted how much the mix of VOCs was different even among few and localized EVOOs. The correlation with the sensor detection, which is faster and chipper compared to the other two techniques, elucidated the similarities and discrepancies between the applied methods.
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Affiliation(s)
- Roberto Mariotti
- Institute of Biosciences and Bioresources, National Research Council, 06128 Perugia, Italy
| | - Estefanía Núñez-Carmona
- Institute of Biosciences and Bioresources, National Research Council, URT-Reggio Emilia, Via J. F. Kennedy 17/I, 42124 Reggio Emilia, Italy
| | - Dario Genzardi
- Institute of Biosciences and Bioresources, National Research Council, URT-Reggio Emilia, Via J. F. Kennedy 17/I, 42124 Reggio Emilia, Italy
| | - Saverio Pandolfi
- Institute of Biosciences and Bioresources, National Research Council, 06128 Perugia, Italy
| | - Veronica Sberveglieri
- Institute of Biosciences and Bioresources, National Research Council, URT-Reggio Emilia, Via J. F. Kennedy 17/I, 42124 Reggio Emilia, Italy
| | - Soraya Mousavi
- Institute of Biosciences and Bioresources, National Research Council, 06128 Perugia, Italy
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Bassey K, Mabowe M, Mothibe M, Witika BA. Chemical Characterization and Nutritional Markers of South African Moringa oleifera Seed Oils. Molecules 2022; 27:molecules27185749. [PMID: 36144484 PMCID: PMC9506141 DOI: 10.3390/molecules27185749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
Moringa oleifera Lam (syn. M. ptreygosperma Gaertn.) leaves are globally acclaimed for their nutritional content and mitigation of malnutrition. In most impoverished rural communities including Limpopo, Mpumalanga and KwaZulu Natal of South Africa, powdered leaves of Moringa oleifera are applied as a nutritional supplement for readily available food such as porridge for malnourished children and even breast-feeding mothers. Widely practiced and admired is also the use of the plant seed in the do-it-yourself purification of water by rural South Africans. This study aimed at identifying the chemical and nutritional marker compounds present in South African Moringa oleifera seed oils using high resolution 1-2-dimension gas chromatography in order to give scientific validation to its uses in cosmetics and particularly in culinary practices. Results obtained from two-dimension tandem mass spectrometry chemical signature revealed over 250 compounds, five times more than those reported from one-dimension gas chromatography. Whereas previous reports from gas chromatography-mass spectrometry analysis reported oleic acid (70–78%) as the major compound from oil samples from other countries, M. oleifera seed oil from South Africa is marked by cis-13-octadeaconic acid with 78.62% and 41.9% as the predominant monounsaturated fatty acid in the hexane and dichloromethane extracts respectively. This was followed by cis-vaccenic acid, an isomer of oleic acid at 51% in the acetone extract, 9-octadecanoic acid-(z)-methyl ester at 39.18%, 21.34% and 10.06% in dichloromethane, hexane and acetone extracts respectively. However, a principal component analysis with R2 = 0.98 of the two-dimension tandem mass spectrometry cum chemometric analysis indicated n-hexadecanoic acid, oleic acid, 9-octadecanoic acid-(z)-methyl ester and cis-vaccenic acid with a probability of 0.96, 0.88, 0.80 and 0.79 respectively as the marker compounds that should be used for the quality control of moringa seed oils from South Africa. This study demonstrates that South African Moringa oleifera oils contain C-18 monounsaturated fatty acids similar to oils from Egypt (76.2%), Thailand (71.6%) and Pakistan (78.5%) just to mention but a few. These fatty acids are sunflower and olive oil type-compounds and therefore place moringa seed oil for consideration as a cooking oil amongst its other uses.
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Affiliation(s)
- Kokoette Bassey
- Pharmaceutical Sciences Division, School of Pharmacy, Sefako Makgatho Health Sciences University, Molotlegi Street, Ga-Rankuwa, Pretoria 0204, South Africa
- Correspondence:
| | - Malebelo Mabowe
- Pharmaceutical Sciences Division, School of Pharmacy, Sefako Makgatho Health Sciences University, Molotlegi Street, Ga-Rankuwa, Pretoria 0204, South Africa
| | - Mmamosheledi Mothibe
- Division of Pharmacology, Faculty of Pharmacy, Rhodes University, Makhanda 6139, South Africa
| | - Bwalya A. Witika
- Pharmaceutical Sciences Division, School of Pharmacy, Sefako Makgatho Health Sciences University, Molotlegi Street, Ga-Rankuwa, Pretoria 0204, South Africa
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Takahashi H, Kato S, Shimizu N, Otoki Y, Ito J, Sakaino M, Sano T, Imagi J, Nakagawa K. Elucidation of Olive Oil Oxidation Mechanisms by Analysis of Triacylglycerol Hydroperoxide Isomers Using LC-MS/MS. Molecules 2022; 27:molecules27165282. [PMID: 36014520 PMCID: PMC9415923 DOI: 10.3390/molecules27165282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/08/2022] [Accepted: 08/15/2022] [Indexed: 11/21/2022] Open
Abstract
Despite the importance of the insight about the oxidation mechanisms (i.e., radical and singlet oxygen (1O2) oxidation) in extra virgin olive oil (EVOO), the elucidation has been difficult due to its various triacylglycerol molecular species and complex matrix. This study tried to evaluate the mechanisms responsible for EVOO oxidation in our daily use by quantitative determination of triacylglycerol hydroperoxide (TGOOH) isomers using LC-MS/MS. The standards of dioleoyl-(hydroperoxy octadecadienoyl)-triacylglycerol and dioleoyl-(hydroperoxy octadecamonoenoyl)-triacylglycerol, which are the predominant TGOOHs contained in EVOO, were prepared. Subsequently, fresh, thermal-, and photo-oxidized EVOO were analyzed. The obtained results mostly agreed with the previously reported characteristics of the radical and 1O2 oxidation of linoleic acid and oleic acid. This suggests that the methods described in this paper should be valuable in understanding how different factors that determine the quality of EVOO (e.g., olive species, cultivation area, cultivation timing, and extraction methods) contribute to its oxidative stability.
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Affiliation(s)
- Hayato Takahashi
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
| | - Shunji Kato
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
- J-Oil Mills Innovation Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
| | - Naoki Shimizu
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
| | - Yurika Otoki
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
| | - Junya Ito
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
| | - Masayoshi Sakaino
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
- Food Design Center, J-OIL MILLS, Inc., Yokohama 230-0053, Kanagawa, Japan
| | - Takashi Sano
- Food Design Center, J-OIL MILLS, Inc., Yokohama 230-0053, Kanagawa, Japan
| | - Jun Imagi
- J-Oil Mills Innovation Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
- Food Design Center, J-OIL MILLS, Inc., Yokohama 230-0053, Kanagawa, Japan
| | - Kiyotaka Nakagawa
- Laboratory of Food Function Analysis, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
- J-Oil Mills Innovation Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan
- Correspondence: ; Fax: +81-22-757-4417
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Švarcová K, Hofmeisterová L, Švecová B, Šilha D. In Vitro Activity of Water Extracts of Olive Oil against Planktonic Cells and Biofilm Formation of Arcobacter-like Species. Molecules 2022; 27:molecules27144509. [PMID: 35889378 PMCID: PMC9318941 DOI: 10.3390/molecules27144509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 01/27/2023] Open
Abstract
Extra-virgin olive oils contain many bioactive substances that are phenolic compounds. The survival of Arcobacter-like strains in non-buffered (WEOO) and buffered (BEOO) extracts of olive oils were studied. Time kill curves of different strains were measured in the environment of olive oil extracts of different grades. The activity of the extracts was also monitored for biofilm formation using the Christensen method. In vitro results revealed that extra-virgin olive oil extracts exhibited the strongest antimicrobial effects, especially non-buffered extracts, which exhibited strain inhibition after only 5 min of exposure. The weakest inhibitory effects were observed for olive oil extracts. A decrease in biofilm formation was observed in the environment of higher WEOO concentrations, although at lower concentrations of extracts, increased biofilm formation occurred due to stress conditions. The dialdehydic forms of oleuropein derivatives, hydroxytyrosol, and tyrosol were the main compounds detected by HPLC-CoulArray. The results indicate that not all olive oils had a similar bactericidal effect, and that bioactivity primarily depended on the content of certain phenolic compounds.
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Affiliation(s)
- Karolína Švarcová
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic; (K.Š.); (L.H.)
| | - Leona Hofmeisterová
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic; (K.Š.); (L.H.)
| | - Blanka Švecová
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic;
| | - David Šilha
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic; (K.Š.); (L.H.)
- Correspondence: ; Tel.: +420-466-037-765
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Shabir S, Ilyas N, Mashwani ZUR, Ahmad MS, Al-Ansari MM, Al-Humaid L, Reddy MS. Designing of pretreatment filter technique for reduction of phenolic constituents from olive-mill wastewater and testing its impact on wheat germination. Chemosphere 2022; 299:134438. [PMID: 35358557 DOI: 10.1016/j.chemosphere.2022.134438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/13/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Olive oil extraction produces a great volume of olive mill wastewater (OMW), which is considered a serious ecological challenge. In this study, we have designed and tested a trickling filter consisting of seven different layers of natural material, including (coarse gravel, fine gravel, lime (Ca (OH)2), sand (SiO2), carbon char, sponge/mesh), to treat OMW. The filter process involved physical separation, filtration, coagulation and adsorption with the removal of COD (69.8%), BOD (40.2%), Phenolic contents (90%), pH (41%), EC (41.6%) and total suspended solids (TSS) (69%). Our results have shown that treated OMW has a high potential oxidant activity. T7, Untreated OMW at 1:6 dilutions, had the strongest correlation (i.e. 0.97), while untreated OMW had the lowest IC50 (7.62 g ml-1), which shown the best DPPH radical scavenging capabilities. While pure Untreated OMW has the maximum radical scavenging activity, 63%, treated (1:6) diluted OMW exhibits the lowest value i. e 9% when phosphomolybdate assay was done. HPLC analysis showed that the trickling filter removed the vanillic acid, caffeic acid and reduced the contents of phenolic components such as gallic acid, hydroxytyrosol, vanillin, quercetin and catechol. Filtered OMW was also tested for its germination efficacy at various dilutions (1:0, 1:2, 1:4, 1:6). A remarkable improvement in germination percentage, germination index, seedling length, seedling vigor index, promptness index, stress tolerance index (76.7%, 68.4%, 51.7%, 82.1%, 54.8%, and 66.7%, respectively) has shown the efficiency of treated OMW at 1:6 dilutions. The results from this study show the efficiency of our filter design which can be further used.
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Affiliation(s)
- Sumera Shabir
- Department of Botany, PMAS-Arid Agriculture University Rawalpindi, 46300, Rawalpindi, Pakistan
| | - Noshin Ilyas
- Department of Botany, PMAS-Arid Agriculture University Rawalpindi, 46300, Rawalpindi, Pakistan.
| | - Zia-Ur-Rehman Mashwani
- Department of Botany, PMAS-Arid Agriculture University Rawalpindi, 46300, Rawalpindi, Pakistan
| | - Muhammad Sheeraz Ahmad
- Department of Biochemistry, PMAS-Arid Agriculture University Rawalpindi, 46300, Rawalpindi, Pakistan
| | - Mysoon M Al-Ansari
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Latifah Al-Humaid
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - M S Reddy
- Asian PGPR Society for Sustainable Agriculture & Auburn Ventures, Department of Plant Pathology and Entomology, Auburn University, Auburn, AL, 36849, USA
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39
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Malherbi NM, Grando RC, Fakhouri FM, Velasco JI, Tormen L, da Silva GHR, Yamashita F, Bertan LC. Effect of the addition of Euterpe oleracea Mart. extract on the properties of starch-based sachets and the impact on the shelf-life of olive oil. Food Chem 2022; 394:133503. [PMID: 35728472 DOI: 10.1016/j.foodchem.2022.133503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 11/19/2022]
Abstract
This study aimed to produce and characterized active biodegradable packages by extrusion of cassava starch, biodegradable polyester, plasticizer, and acai extract (EA 0, 1, 2, 3 and 4%) and to evaluate its effects on extra virgin olive oil (EVOO) for 120 days. All analyses were performed at the beginning (day 0) and the end of the experiment (day 120). The oil was characterized for acidity index (IA), peroxide index (IP), thiobarbituric acid reactive substances (TBARS), conjugated dienes (CD), phenolic compounds (PC) and color parameters. The incorporation of EA at the initial time caused increased thickness, mechanical properties, solubility in water and oil in all formulations. The some values of properties increased or decreased, due to the interaction of the stored product and packaging. At the end of the storage period, the values of IA and IP were below the limits established by current legislation. The EVOO showed a gradual decrease in PC from day 1 to day 120, for all treatments.
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Affiliation(s)
| | | | - Farayde Matta Fakhouri
- Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC BarcelonaTech), Poly2 Group, Terrassa, Spain.
| | - José Ignacio Velasco
- Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC BarcelonaTech), Poly2 Group, Terrassa, Spain
| | - Luciano Tormen
- Federal University of the Southern Border, Laranjeiras do Sul, Brazil
| | | | - Fábio Yamashita
- Department of Food Science and Technology, Londrina State University, Londrina, Brazil
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40
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García Martín JF. Potential of Near-Infrared Spectroscopy for the Determination of Olive Oil Quality. Sensors (Basel) 2022; 22:s22082831. [PMID: 35458818 PMCID: PMC9031905 DOI: 10.3390/s22082831] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/01/2022] [Accepted: 04/04/2022] [Indexed: 12/10/2022]
Abstract
The analysis of the physico-chemical parameters of quality of olive oil is still carried out in laboratories using chemicals and generating waste, which is relatively costly and time-consuming. Among the various alternatives for the online or on-site measurement of these parameters, the available literature highlights the use of near-infrared spectroscopy (NIRS). This article intends to comprehensively review the state-of-the-art research and the actual potential of NIRS for the analysis of olive oil. A description of the features of the infrared spectrum of olive oil and a quick explanation of the fundamentals of NIRS and chemometrics are also included. From the results available in the literature, it can be concluded that the four most usual physico-chemical parameters that define the quality of olive oils, namely free acidity, peroxide value, K232, and K270, can be measured by NIRS with high precision. In addition, NIRS is suitable for the nutritional labeling of olive oil because of its great performance in predicting the contents in total fat, total saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids in olive oils. Other parameters of interest have the potential to be analyzed by NIRS, but the improvement of the mathematical models for their determination is required, since the errors of prediction reported so far are a bit high for practical application.
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Affiliation(s)
- Juan Francisco García Martín
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, 41012 Seville, Spain;
- University Institute of Research on Olive Groves and Olive Oils, GEOLIT Science and Technology Park, University of Jaén, 23620 Mengíbar, Spain
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41
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Sánchez R, Martín-Tornero E, Lozano J, Fernández A, Arroyo P, Meléndez F, Martín-Vertedor D. Electronic nose application for the discrimination of sterilization treatments applied to Californian-style black olive varieties. J Sci Food Agric 2022; 102:2232-2241. [PMID: 34622476 DOI: 10.1002/jsfa.11561] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/07/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Olive oil continues to be the main destination for olives. The production of table olives is increasing. 'Californian-style' processes are among the most frequently employed to produce oxidized olives. Sensory evaluation requires the development of an instrumental detection method that can be used as an adjunct to traditional tasting panels. RESULTS An electronic nose (E-nose) was used to classify two varieties of olives following exposure to different sterilization. Principal component analysis (PCA) revealed that both varieties had different volatile profiles. Sensory panel evaluations were similar for both. Partial least squares-discriminant analysis (PLS-DA) obtained from the E-nose was able to separate the two varieties and explained 82% of total variance. Moreover, volatile profiles correctly classified olives according to sterilization times recorded up to 121 °C . The only exception was at F0 ≥ 22 min, at which a plot of PCA outcomes failed to differentiate scores. E-nose data showed similar results to those produced from the volatile analysis when grouping samples were sterilized to F0 ≥ 18 min, at the same time distinguishing these samples from those subjected to less intense thermal treatments. A partial least squares (PLS) chemometric approach was evaluated for quantifying important olive quality parameters. With regards to validation parameters, R P 2 pertaining to perceived defect was 0.88, whilst R P 2 pertaining to overall assessment was 0.78. CONCLUSIONS E-nose offers a fast, inexpensive and non-destructive method for discriminating between varieties and thermal treatments up to a point at which cooking defects are highly similar (from F0 = 18 onwards). © 2021 Society of Chemical Industry.
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Affiliation(s)
- Ramiro Sánchez
- Technological Institute of Food and Agriculture CICYTEX-INTAEX. Junta of Extremadura, Badajoz, Spain
| | - Elísabet Martín-Tornero
- Department of Agricultural and Forestry Engineering, School of Agrarian Engineering, University of Extremadura, Badajoz, Spain
| | - Jesús Lozano
- Industrial Engineering School, University of Extremadura, Badajoz, Spain
- Research Institute of Agricultural Resources (INURA), Campus Universitario, Badajoz, Spain
| | - Antonio Fernández
- Technological Institute of Food and Agriculture CICYTEX-INTAEX. Junta of Extremadura, Badajoz, Spain
| | - Patricia Arroyo
- Industrial Engineering School, University of Extremadura, Badajoz, Spain
| | - Félix Meléndez
- Industrial Engineering School, University of Extremadura, Badajoz, Spain
| | - Daniel Martín-Vertedor
- Technological Institute of Food and Agriculture CICYTEX-INTAEX. Junta of Extremadura, Badajoz, Spain
- Research Institute of Agricultural Resources (INURA), Campus Universitario, Badajoz, Spain
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42
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Siano F, Vasca E, Picariello G. Accurate determination of total biophenols in unfractionated extra-virgin olive oil with the fast blue BB assay. Food Chem 2022; 370:130990. [PMID: 34507214 DOI: 10.1016/j.foodchem.2021.130990] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 08/15/2021] [Accepted: 08/29/2021] [Indexed: 02/02/2023]
Abstract
The phenolic compounds of extra-virgin olive oil (EVOO) are key contributors of nutritional and sensory quality as well as chemical stability. The reference method for their determination is the HPLC-UV, which is cost-/time-expensive. In this work, total phenolic compounds were evaluated in unfractionated EVOO adapting the Fast Blue BB (FBBB) assay, which involves the spectrophotometric (absorbance at 420 nm) determination of azo derivatives resulting from the coupling of phenolic compounds with FBBB diazonium salt in alkali pH. When tested on 26 EVOO samples, the FBBB assay and HPLC-determinations were strikingly correlated (R2 = 0.9653), differently from FBBB and Folin-Ciocalteu assays, which showed poor correlation. The assay is simple, repeatable, robust, rapid and cheap, and results might be evaluated on a printed colorimetric scale. This protocol of the FBBB assay could be routinely used to categorize EVOO according to the health claim allowed by EFSA concerning the content of phenolic compounds.
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Affiliation(s)
- Francesco Siano
- Istituto di Scienze dell'Alimentazione, Consiglio Nazionale delle Ricerche, Via Roma, 64 - 83100 Avellino, Italy
| | - Ermanno Vasca
- Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II, 132 - 84084 Fisciano, SA, Italy
| | - Gianluca Picariello
- Istituto di Scienze dell'Alimentazione, Consiglio Nazionale delle Ricerche, Via Roma, 64 - 83100 Avellino, Italy.
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43
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Cakmak-Arslan G. Monitoring of Hazelnut oil quality during thermal processing in comparison with extra virgin olive oil by using ATR-FTIR spectroscopy combined with chemometrics. Spectrochim Acta A Mol Biomol Spectrosc 2022; 266:120461. [PMID: 34649123 DOI: 10.1016/j.saa.2021.120461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/25/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
Hazelnut oil (HO), which is not widely used because its healthy properties are not fully known yet, is an excellent nutrient due to its high content of monounsaturated fatty acids and antioxidants. In this study, the effects of thermal processing on the quality of HO in comparison to extra virgin olive oil (EVOO), which is one of the healthiest and heat-resistant oils, were investigated using Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopy. Oil samples were heated at a frying temperature (180 °C) for 24 h in periods of 8 h per day and alterations in the spectra of these oils sampled every 2 h were evaluated. The heating process caused decreases in the areas of the bands at 3007 and 722 cm-1 and the area ratios of 3007/2854 and 722/2854 cm-1 and increases in the areas of the bands at 987 and 965 cm-1 and the area ratio of 965/2854 cm-1 in both oils suggesting the conjugation and cis-trans isomerization of unsaturated fatty acids. In addition, heating caused increases in the areas of the bands at 3475 and 1744 cm-1 and the ratios of 3475/2854 cm-1 and 1744/2854 cm-1, a shift to a lower value in the wavenumber and a broadening of the 1744 cm-1 band indicating the formation of primary and secondary oxidation products in the heated oils, which were also supported by chemical studies. Most of these changes began earlier in EVOO and all occurred to a higher extent, revealing that HO has a higher thermal stability than EVOO. Principal component analysis and hierarchical cluster analysis confirmed that HO is more resistant to heat than EVOO. These results showed that HO is superior to EVOO and it could be used for frying as a healthier and cheaper oil alternative. This study also indicated that oil oxidation could be monitored easily and rapidly via ATR-FTIR spectroscopy.
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Affiliation(s)
- Gulgun Cakmak-Arslan
- Department of Biology, Faculty of Arts and Sciences, Duzce University, 81620 Duzce, Turkey.
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44
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Rodríguez-Juan E, Martínez Román F, Sánchez-García A, Fernández-Bolaños J, García-Borrego A. From Low-Quality Olive Oils to Valuable Bioactive Compounds: Obtaining Oleacein and Oleocanthal from Olive Oils Intended for Refining. J Agric Food Chem 2022; 70:333-342. [PMID: 34957829 DOI: 10.1021/acs.jafc.1c05814] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The aim of this work was to recover phenolic compounds such as oleacein and oleocanthal from low commercial value olive oils destined for refining [lampante olive oil (LOO)]. For this, the ability of three extraction systems of phenols from oils was evaluated. A new quick and simple extraction method (NM) for obtaining phenols was developed, consisting of the acidified mixture MeOH/H2O (50:50) (v/v) 0.1% formic acid, and it was compared to a conventional method (CM) widely used for the analytical determination of phenolic compounds in olive oil using MeOH: H2O (80:20) (v/v). NM showed a higher yield for the extraction of oleacein with an increase of 14% compared to CM; no significant differences were observed in the extraction of oleocanthal between the two methods. The third method, using two formulations of deep eutectic solvents (DESs) based on ChCl, showed higher extractive efficiency for the two secoiridoids than CM and NM when DES consisted of ChCl and xylitol. On the other hand, the concentrations of oleacein and oleocanthal were determined in 14 samples of blended oils that were previously classified as extra virgin olive oil and LOO according to EU regulation. LOO contained amounts up to 109.89 and 140.16 mg/kg of oleacein and oleocanthal, respectively. Oleacein (>98%) and oleocanthal (>95%) were successfully recovered from phenolic extracts obtained from LOO oils through chromatographic separation and purification by semipreparative high-performance liquid chromatography. Therefore, these low-quality oils are an inexpensive source of bioactive substances.
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Affiliation(s)
- Elisa Rodríguez-Juan
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Campus University Pablo de Olavide, Building 46, 41013 Seville, Spain
| | - Fernando Martínez Román
- Almazara Experimental, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Campus University Pablo de Olavide, Building 46, 41013 Seville, Spain
| | - Alicia Sánchez-García
- Laboratory of Mass Spectroscopy, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Campus University Pablo de Olavide, Building 46, 41013 Seville, Spain
| | - Juan Fernández-Bolaños
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Campus University Pablo de Olavide, Building 46, 41013 Seville, Spain
| | - Aranzazu García-Borrego
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Campus University Pablo de Olavide, Building 46, 41013 Seville, Spain
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45
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Drakopoulou SK, Damalas DE, Baessmann C, Thomaidis NS. Trapped Ion Mobility Incorporated in LC-HRMS Workflows as an Integral Analytical Platform of High Sensitivity: Targeted and Untargeted 4D-Metabolomics in Extra Virgin Olive Oil. J Agric Food Chem 2021; 69:15728-15737. [PMID: 34913678 DOI: 10.1021/acs.jafc.1c04789] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Trapped ion mobility spectrometry (TIMS) is a promising technique for the separation of isomers based on their mobility. In the present work, TIMS coupled to liquid chromatography (LC) and high-resolution mass spectrometry (HRMS) was applied as a comprehensive analytical platform to address authenticity challenges, focusing on extra virgin olive oil (EVOO). Isomers detected in EVOO's phenolic fraction, classified into secoiridoids group, were successfully separated. Thanks to parallel accumulation serial fragmentation (PASEF) acquisition mode, high-quality spectra were obtained, facilitating identification. Moreover, a four-dimensional (4D) untargeted metabolomics approach was implemented to evaluate EVOO's global profile in cases of both variety and geographical origin discrimination. Potential authenticity markers, attributed to isomers, were successfully identified through the proposed workflow that incorporates ion mobility information along with LC-HRMS analytical evidence (i.e., mass accuracy, retention time, isotopic pattern, MS/MS fragmentation). Our study establishes LC-TIMS-HRMS in food authenticity and highlights mobility-enhanced metabolomics in four dimensions.
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Affiliation(s)
- Sofia K Drakopoulou
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Dimitrios E Damalas
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | | | - Nikolaos S Thomaidis
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
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46
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Wang H, Xin Y, Wan X. Spectral detection technology of vegetable oil: Spectral analysis of porphyrins and terpenoids. Spectrochim Acta A Mol Biomol Spectrosc 2021; 261:119965. [PMID: 34144333 DOI: 10.1016/j.saa.2021.119965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/23/2021] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
In this paper, the existence of porphyrins and terpenoids in different vegetable oils and their spectral characterization techniques are reported. The classification of pure vegetable oils was realised by principal component analysis - support vector machine (PCA-SVM) model. The absorption spectra, Raman spectra, fluorescence spectra and supercontinuum spectra of 8 kinds of pure vegetable oils were studied, and the effects of oil types and processing technology on spectral differences were analysed. The results showed that the fingerprint information of 4 kinds of spectral techniques mainly came from chlorophyll and β-carotene in vegetable oil. The extra virgin olive oil (EVOO) got by physical cold pressing technology had the most porphyrins and terpenoids content and the strongest activity. Therefore, the spectral characterization of porphyrins and terpenoids in vegetable oil can guide the regulation of the processing technology of vegetable oil and realise the qualitative and quantitative analysis of vegetable oil.
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Affiliation(s)
- Hongpeng Wang
- Key Laboratory of Space Active Opto-Electronics Technology of the Chinese Academy of Sciences, Shanghai 200083, China; Shanghai Institute of Technical Physics of the Chinese Academy of Sciences, Shanghai 200083, China.
| | - Yingjian Xin
- Key Laboratory of Space Active Opto-Electronics Technology of the Chinese Academy of Sciences, Shanghai 200083, China; Shanghai Institute of Technical Physics of the Chinese Academy of Sciences, Shanghai 200083, China
| | - Xiong Wan
- Key Laboratory of Space Active Opto-Electronics Technology of the Chinese Academy of Sciences, Shanghai 200083, China; Key Laboratory of Systems Health Science of Zhejiang Province, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 310024 Hangzhou, China; Shanghai Institute of Technical Physics of the Chinese Academy of Sciences, Shanghai 200083, China.
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47
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Ancora D, Milavec J, Gradišek A, Cifelli M, Sepe A, Apih T, Zalar B, Domenici V. Sensitivity of Proton NMR Relaxation and Proton NMR Diffusion Measurements to Olive Oil Adulterations with Vegetable Oils. J Agric Food Chem 2021; 69:12081-12088. [PMID: 34014664 PMCID: PMC8532151 DOI: 10.1021/acs.jafc.1c00914] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/11/2021] [Accepted: 05/07/2021] [Indexed: 05/27/2023]
Abstract
Olive oils and, in particular, extra-virgin olive oils (EVOOs) are one of the most frauded food. Among the different adulterations of EVOOs, the mixture of high-quality olive oils with vegetable oils is one of the most common in the market. The need for fast and cheap techniques able to detect extra-virgin olive oil adulterations was the main motivation for the present research work based on 1H NMR relaxation and diffusion measurements. In particular, the 1H NMR relaxation times, T1 and T2, measured at 2 and 100 MHz on about 60 EVOO samples produced in Italy are compared with those measured on four different vegetable oils, produced from macadamia nuts, linseeds, sunflower seeds, and soybeans. Self-diffusion coefficients on this set of olive oils and vegetable oil samples were measured by means of the 1H NMR diffusion ordered spectroscopy (DOSY) technique, showing that, except for the macadamia oil, other vegetable oils are characterized by an average diffusion coefficient sensibly different from extra-virgin olive oils. Preliminary tests based on both NMR relaxation and diffusometry methods indicate that eventual adulterations of EVOO with linseed oil and macadamia oil are the easiest and the most difficult frauds to be detected, respectively.
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Affiliation(s)
- Donatella Ancora
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via Moruzzi, 3, 56124 Pisa, Italy
| | - Jerneja Milavec
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000, Ljubljana, Slovenia
| | - Anton Gradišek
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000, Ljubljana, Slovenia
| | - Mario Cifelli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via Moruzzi, 3, 56124 Pisa, Italy
| | - Ana Sepe
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000, Ljubljana, Slovenia
| | - Tomaž Apih
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000, Ljubljana, Slovenia
| | - Boštjan Zalar
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000, Ljubljana, Slovenia
| | - Valentina Domenici
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, via Moruzzi, 3, 56124 Pisa, Italy
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48
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Gradišek A, Cifelli M, Ancora D, Sepe A, Zalar B, Apih T, Domenici V. Analysis of Extra Virgin Olive Oils from Two Italian Regions by Means of Proton Nuclear Magnetic Resonance Relaxation and Relaxometry Measurements. J Agric Food Chem 2021; 69:12073-12080. [PMID: 33847493 PMCID: PMC8532148 DOI: 10.1021/acs.jafc.1c00622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 05/07/2023]
Abstract
The interest in development of new non-destructive methods for characterization of extra virgin olive oils (EVOOs) has been increasing in the recent years. Among different experimental techniques, nuclear magnetic resonance (NMR) relaxation measurements are very promising in the field of food characterization and authentication. In this study, we focused on relaxation times T1 and T2 measured at different magnetic field strengths (namely, 2, 100, and 400 MHz) and 1H NMR T1 relaxometry dispersions directly on olive oil samples without any chemical/physical treatments. A large set of EVOO samples produced in two regions of Italy, Tuscany and Apulia, were investigated by means of 1H NMR relaxation techniques. The relaxation studies reported here show several common features between the two sets of EVOO samples, thus indicating that relaxation properties, namely, the ranges of values of T1 and T2 at 2 and 100 MHz, are characteristic of EVOOs, independently from the cultivars, climate, and geographic origin. This is a promising result in view of quality control and monitoring.
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Affiliation(s)
- Anton Gradišek
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000 Ljubljana, Slovenia
| | - Mario Cifelli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via Moruzzi 3, 56124 Pisa, Italy
| | - Donatella Ancora
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via Moruzzi 3, 56124 Pisa, Italy
| | - Ana Sepe
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000 Ljubljana, Slovenia
| | - Boštjan Zalar
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000 Ljubljana, Slovenia
| | - Tomaž Apih
- Department
of Condensed Matter Physics, Jožef
Stefan Institute, 39 Jamova Cesta, SI-1000 Ljubljana, Slovenia
| | - Valentina Domenici
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via Moruzzi 3, 56124 Pisa, Italy
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49
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Stilo F, Jiménez-Carvelo AM, Liberto E, Bicchi C, Reichenbach SE, Cuadros-Rodríguez L, Cordero C. Chromatographic Fingerprinting Enables Effective Discrimination and Identitation of High-Quality Italian Extra-Virgin Olive Oils. J Agric Food Chem 2021; 69:8874-8889. [PMID: 34319731 PMCID: PMC8389832 DOI: 10.1021/acs.jafc.1c02981] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/13/2021] [Accepted: 07/13/2021] [Indexed: 05/21/2023]
Abstract
The challenging process of high-quality food authentication takes advantage of highly informative chromatographic fingerprinting and its identitation potential. In this study, the unique chemical traits of the complex volatile fraction of extra-virgin olive oils from Italian production are captured by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry and explored by pattern recognition algorithms. The consistent realignment of untargeted and targeted features of over 73 samples, including oils obtained by different olive cultivars (n = 24), harvest years (n = 3), and processing technologies, provides a solid foundation for sample identification and discrimination based on production region (n = 6). Through a dedicated multivariate statistics workflow, identitation is achieved by two-level partial least-square (PLS) regression, which highlights region diagnostic patterns accounting between 58 and 82 of untargeted and targeted compounds, while sample classification is performed by sequential application of soft independent modeling for class analogy (SIMCA) models, one for each production region. Samples are correctly classified in five of the six single-class models, and quality parameters [i.e., sensitivity, specificity, precision, efficiency, and area under the receiver operating characteristic curve (AUC)] are equal to 1.00.
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Affiliation(s)
- Federico Stilo
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università
degli Studi di Torino, Via Pietro Giuria 9, Torino I-10125, Italy
| | - Ana M. Jiménez-Carvelo
- Department
of Analytical Chemistry, Faculty of Science, University of Granada, Av. Fuentenueva S/N, Granada E-18071, Spain
- . Phone: +39 011 6707172
| | - Erica Liberto
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università
degli Studi di Torino, Via Pietro Giuria 9, Torino I-10125, Italy
| | - Carlo Bicchi
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università
degli Studi di Torino, Via Pietro Giuria 9, Torino I-10125, Italy
| | - Stephen E. Reichenbach
- University
of Nebraska, Lincoln, Nebraska 68588, United
States
- GC
Image LLC, Lincoln, Nebraska 68508, United
States
| | - Luis Cuadros-Rodríguez
- Department
of Analytical Chemistry, Faculty of Science, University of Granada, Av. Fuentenueva S/N, Granada E-18071, Spain
| | - Chiara Cordero
- Dipartimento
di Scienza e Tecnologia del Farmaco, Università
degli Studi di Torino, Via Pietro Giuria 9, Torino I-10125, Italy
- . Phone: +34 958240797
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50
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Revelou PK, Xagoraris M, Alexandropoulou A, Kanakis CD, Papadopoulos GK, Pappas CS, Tarantilis PA. Chemometric Study of Fatty Acid Composition of Virgin Olive Oil from Four Widespread Greek Cultivars. Molecules 2021; 26:molecules26144151. [PMID: 34299426 PMCID: PMC8303967 DOI: 10.3390/molecules26144151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/04/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022] Open
Abstract
Virgin olive oil (VOO) is one of the key components of the Mediterranean diet owing to the presence of monounsaturated fatty acids and various bioactive compounds. These beneficial traits, which are usually associated with the cultivar genotype, are highlighting the demand of identifying characteristics of olive oil that will ensure its authenticity. In this work, the fatty acid (FA) composition of 199 VOO samples from Koroneiki, Megaritiki, Amfissis, and Manaki cultivars was determined and studied by chemometrics. Olive cultivar greatly influenced the FA composition, namely, oleic acid (from 75.36% for Amfissis to 65.81% for Megaritiki) and linoleic acid (from 13.35% for Manaki to 6.70% for Koroneiki). Spearman’s rho correlation coefficients revealed differences and similarities among the olive oil cultivars. The use of the forward stepwise algorithm identified the FAs arachidonic acid, gadoleic acid, linoleic acid, α-linolenic acid, palmitoleic acid, and palmitic acid as the most significant for the differentiation of samples. The application of linear and quadratic cross-validation discriminant analysis resulted in the correct classification of 100.00% and 99.37% of samples, respectively. The findings demonstrated the special characteristics of the VOO samples derived from the four cultivars and their successful botanical differentiation based on FA composition.
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Affiliation(s)
- Panagiota-Kyriaki Revelou
- Laboratory of Chemistry, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece; (P.-K.R.); (M.X.); (C.D.K.); (C.S.P.)
| | - Marinos Xagoraris
- Laboratory of Chemistry, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece; (P.-K.R.); (M.X.); (C.D.K.); (C.S.P.)
| | | | - Charalabos D. Kanakis
- Laboratory of Chemistry, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece; (P.-K.R.); (M.X.); (C.D.K.); (C.S.P.)
| | - George K. Papadopoulos
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
| | - Christos S. Pappas
- Laboratory of Chemistry, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece; (P.-K.R.); (M.X.); (C.D.K.); (C.S.P.)
| | - Petros A. Tarantilis
- Laboratory of Chemistry, Department of Food Science and Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece; (P.-K.R.); (M.X.); (C.D.K.); (C.S.P.)
- Correspondence: ; Tel.: +30-210-529-4262
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