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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] [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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Oteri M, Bartolomeo G, Rigano F, Aspromonte J, Trovato E, Purcaro G, Dugo P, Mondello L, Beccaria M. Comprehensive Chemical Characterization of Chia ( Salvia hispanica L.) Seed Oil with a Focus on Minor Lipid Components. Foods 2022; 12:foods12010023. [PMID: 36613240 PMCID: PMC9818636 DOI: 10.3390/foods12010023] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
A comprehensive chemical characterization of different lipid components, namely fatty acid composition after derivatization in fatty acid methyl esters (FAMEs), triacylglycerols (TAGs), phospholipids (PLs), free fatty acids (FFAs), sterols, carotenoids, tocopherols, and polyphenols in Chia seed oil, obtained by Soxhlet extraction, was reported. Reversed phase liquid chromatography (RP-LC) coupled to UV and mass spectrometry (MS) detectors was employed for carotenoids, polyphenols, and TAGs determination; normal phase-LC in combination with fluorescence detector (FLD) was used for tocopherols analysis; PL and FFA fractions were investigated after a rapid solid phase extraction followed by RP-LC-MS and NanoLC coupled to electron ionization (EI) MS, respectively. Furthermore, gas chromatography (GC)-flame ionization (FID) and MS detectors were used for FAMEs and sterols analysis. Results demonstrated a significant content of bioactive compounds, such as the antioxidant tocopherols (22.88 µg mL-1), and a very high content of essential fatty acids (81.39%), namely α-linolenic (62.16%) and linoleic (19.23%) acids. In addition, for the best of authors knowledge, FFA profile, as well as some carotenoid classes has been elucidated for the first time. The importance of free fatty acids in vegetable matrices is related to the fact that they can be readily involved in metabolic processes or biosynthetic pathways of the plant itself. For a fast and reliable determination of this chemical class, a very innovative and sensitive NanoLC-EI-MS analytical determination was applied.
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Affiliation(s)
- Marianna Oteri
- Department of Veterinary Sciences, Section of Animal Production, University of Messina, I-98168 Messina, Italy
| | - Giovanni Bartolomeo
- Science4Life S.r.l., an Academic Spin-Off of University of Messina, I-98168 Messina, Italy
| | - Francesca Rigano
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, I-98168 Messina, Italy
- Correspondence: ; Tel.: +39-090-676-5722
| | - Juan Aspromonte
- Laboratorio de Investigación y Desarrollo de Métodos Analíticos, LIDMA, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CIC-PBA, CONICET, Calle 47 esq. 115, La Plata 1900, Argentina
| | - Emanuela Trovato
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, I-98168 Messina, Italy
| | - Giorgia Purcaro
- Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés 2, 5030 Gembloux, Belgium
| | - Paola Dugo
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, I-98168 Messina, Italy
- Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, I-98168 Messina, Italy
| | - Luigi Mondello
- Department of Chemical, Biological, Pharmaceutical, and Environmental Sciences, University of Messina, I-98168 Messina, Italy
- Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, I-98168 Messina, Italy
- Unit of Food Science and Nutrition, Department of Medicine, University Campus Bio-Medico of Rome, I-00128 Rome, Italy
| | - Marco Beccaria
- Department of Chemical, Pharmaceutical, and Agricultural Sciences (DOCPAS), Via Luigi Borsari 46, University of Ferrara, 44121 Ferrara, Italy
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Beccaria M, Zou Y, Stefanuto PH, Siqueira ALM, Maniquet A, Piparo M, Giusti P, Purcaro G, Focant JF. Deeper investigation of oxygen-containing compounds in oleaginous feedstock (animal fat) by preparative column chromatography and comprehensive two-dimensional gas chromatography coupled with high-resolution time-of-flight mass spectrometry. Talanta 2022; 238:123019. [PMID: 34801891 DOI: 10.1016/j.talanta.2021.123019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/26/2021] [Accepted: 10/29/2021] [Indexed: 11/16/2022]
Abstract
The production of renewable fuels as biodiesel and bio-jet fuel is usually originated by the transformation and processing of oleaginous feedstocks, mainly composed of triacylglycerols. Currently, a significant part of the triacylglycerol production relies on grassy oil crops or other woody oil plants, representing more than 120 million metric tons every year. Considering that the worldwide triacylglycerol demand is expected to rise in the future, alternative routes are necessary to ensure a sustainable biodiesel industry and limit diesel price volatility. In this context, the use of animal fats could be an interesting alternative for biodiesel production as the production of animal byproducts represents nearly 17 million tons per year in the European Union only (2020). Animal fats, however, contain large amounts of no-esterified fatty acids and other oxygen compounds, reducing the yield of biodiesel. Therefore, a specific pretreatment is needed before the trans-esterification process. The setup of such appropriate pretreatments requires detailed upstream characterization of the minor components present in the feedstock. For this purpose, the minor component profile of animal fat was investigated by comprehensive two-dimensional gas chromatography coupled with high-resolution time-of-flight mass spectrometry. This was preceded by an innovative sample fractionation and focalization of these minor components by a preparative liquid chromatographic column method. The overall method permitted to extract different levels of information from the two-dimensional chromatograms, leading to a tentative identification of more than 150 compounds, mainly oxygenated, belonging to different chemical classes.
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Affiliation(s)
- Marco Beccaria
- University of Ferrara, Department of Chemical, Pharmaceutical, and Agricultural Sciences, via L. Borsari 46, Ferrara, Italy; Organic and Biological Analytical Chemistry Group, MolSys Research Unit, University of Liège, Liège, Belgium.
| | - Yun Zou
- Organic and Biological Analytical Chemistry Group, MolSys Research Unit, University of Liège, Liège, Belgium
| | - Pierre-Hugues Stefanuto
- Organic and Biological Analytical Chemistry Group, MolSys Research Unit, University of Liège, Liège, Belgium
| | | | - Adrien Maniquet
- TotalEnergies Marketing Services, Research Center, Solaize, France
| | - Marco Piparo
- TotalEnergies Refining and Chemicals, Total Research and Technologies Gonfreville, Harfleur, France; International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, Harfleur, France
| | - Pierre Giusti
- TotalEnergies Refining and Chemicals, Total Research and Technologies Gonfreville, Harfleur, France; International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, Harfleur, France
| | - Giorgia Purcaro
- AgroBioChem Department, Laboratory of Analytical Chemistry, University of Liège, Gembloux Agro-Bio Tech, Passage des Deportes 2, 5030 Gembloux, Belgium
| | - Jean-François Focant
- Organic and Biological Analytical Chemistry Group, MolSys Research Unit, University of Liège, Liège, Belgium
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Targeted authentication approach for the control of the contamination of refined olive oil by refined seeds oils using chromatographic techniques and chemometrics models. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03811-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Conte L, Bendini A, Valli E, Lucci P, Moret S, Maquet A, Lacoste F, Brereton P, García-González DL, Moreda W, Gallina Toschi T. Olive oil quality and authenticity: A review of current EU legislation, standards, relevant methods of analyses, their drawbacks and recommendations for the future. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2019.02.025] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Analysis of lipid profile in lipid storage myopathy. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1029-1030:157-168. [DOI: 10.1016/j.jchromb.2016.06.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/09/2016] [Accepted: 06/22/2016] [Indexed: 01/27/2023]
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