A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆
Mineral oils are complex mixtures of saturated (MOSH) and aromatic hydrocarbons (MOAH) of petrogenic origin, which can contaminate edible oils. Some MOAH (>3 benzene rings) are suspected genotoxic carcinogens, as are polycyclic aromatic hydrocarbons (PAHs) with the same ring number, but without a...
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EDP Sciences
2025-01-01
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| Series: | Oilseeds and fats, crops and lipids |
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| Online Access: | https://www.ocl-journal.org/articles/ocl/full_html/2025/01/ocl250003/ocl250003.html |
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| author | Moret Sabrina Piazza Anna Bouguerra Marouane Dhia Eddine Barp Laura |
| author_facet | Moret Sabrina Piazza Anna Bouguerra Marouane Dhia Eddine Barp Laura |
| author_sort | Moret Sabrina |
| collection | DOAJ |
| description | Mineral oils are complex mixtures of saturated (MOSH) and aromatic hydrocarbons (MOAH) of petrogenic origin, which can contaminate edible oils. Some MOAH (>3 benzene rings) are suspected genotoxic carcinogens, as are polycyclic aromatic hydrocarbons (PAHs) with the same ring number, but without alkylation, mainly originating from the pyrolysis of organic matter. Heavy PAHs can be removed during oil bleaching, but no information is available on MOH and selected alkylated PAHs. Therefore, this study aimed to investigate the adsorption properties of activated carbon, and other sorbents commonly used for oil bleaching, against MOAH and selected alkylated compounds. For this purpose, batch experiments were carried out on mixtures of the target analytes in hexane (model system) using different contact times and sorbent amounts. On-line HPLC-GC-FID was used for quantification. Activated carbon alone or in combination with acid activated bleaching earth proved able to remove not only parent PAHs, but also MOAH and single alkylated PAHs, according to their ring number and alkylation degree. Natural and acid activated bleaching earths alone removed 30–45% of perylene and 7-methylbenzo[a]pyrene. Further studies are needed to better understand the decontamination properties of different sorbent materials and their behavior in the oil matrix. |
| format | Article |
| id | doaj-art-87c70995fa5a4b089aa2d17b3186fbee |
| institution | Kabale University |
| issn | 2272-6977 2257-6614 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Oilseeds and fats, crops and lipids |
| spelling | doaj-art-87c70995fa5a4b089aa2d17b3186fbee2025-08-20T03:53:52ZengEDP SciencesOilseeds and fats, crops and lipids2272-69772257-66142025-01-01321310.1051/ocl/2025005ocl250003A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆Moret Sabrina0https://orcid.org/0000-0002-5752-5540Piazza Anna1Bouguerra Marouane Dhia Eddine2https://orcid.org/0009-0006-9000-3329Barp Laura3https://orcid.org/0000-0001-5481-7030Department of Agri-Food, Environmental and Animal Sciences, University of UdineDepartment of Agri-Food, Environmental and Animal Sciences, University of UdineFaculty of Chemistry, University of WarsawDepartment of Agri-Food, Environmental and Animal Sciences, University of UdineMineral oils are complex mixtures of saturated (MOSH) and aromatic hydrocarbons (MOAH) of petrogenic origin, which can contaminate edible oils. Some MOAH (>3 benzene rings) are suspected genotoxic carcinogens, as are polycyclic aromatic hydrocarbons (PAHs) with the same ring number, but without alkylation, mainly originating from the pyrolysis of organic matter. Heavy PAHs can be removed during oil bleaching, but no information is available on MOH and selected alkylated PAHs. Therefore, this study aimed to investigate the adsorption properties of activated carbon, and other sorbents commonly used for oil bleaching, against MOAH and selected alkylated compounds. For this purpose, batch experiments were carried out on mixtures of the target analytes in hexane (model system) using different contact times and sorbent amounts. On-line HPLC-GC-FID was used for quantification. Activated carbon alone or in combination with acid activated bleaching earth proved able to remove not only parent PAHs, but also MOAH and single alkylated PAHs, according to their ring number and alkylation degree. Natural and acid activated bleaching earths alone removed 30–45% of perylene and 7-methylbenzo[a]pyrene. Further studies are needed to better understand the decontamination properties of different sorbent materials and their behavior in the oil matrix.https://www.ocl-journal.org/articles/ocl/full_html/2025/01/ocl250003/ocl250003.htmlmineral oil saturated hydrocarbons (mosh)mineral oil aromatic hydrocarbons (moah)parent and alkylated polycyclic aromatic hydrocarbons (pahs)oil bleachingadsorption |
| spellingShingle | Moret Sabrina Piazza Anna Bouguerra Marouane Dhia Eddine Barp Laura A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆ Oilseeds and fats, crops and lipids mineral oil saturated hydrocarbons (mosh) mineral oil aromatic hydrocarbons (moah) parent and alkylated polycyclic aromatic hydrocarbons (pahs) oil bleaching adsorption |
| title | A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆ |
| title_full | A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆ |
| title_fullStr | A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆ |
| title_full_unstemmed | A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆ |
| title_short | A preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆ |
| title_sort | preliminary study on the decontamination properties of different sorbent materials used for oil bleaching against mineral oils and selected alkylated polycyclic aromatic hydrocarbons☆ |
| topic | mineral oil saturated hydrocarbons (mosh) mineral oil aromatic hydrocarbons (moah) parent and alkylated polycyclic aromatic hydrocarbons (pahs) oil bleaching adsorption |
| url | https://www.ocl-journal.org/articles/ocl/full_html/2025/01/ocl250003/ocl250003.html |
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