دورية أكاديمية
Improved microwave-assisted saponification to reduce the variability of MOAH determination in edible oils.
| العنوان: | Improved microwave-assisted saponification to reduce the variability of MOAH determination in edible oils. |
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| المؤلفون: | Bauwens, Grégory, Purcaro, Giorgia |
| المصدر: | Analytica Chimica Acta, 1312, 342788 (2024-07-11) |
| بيانات النشر: | Elsevier B.V., 2024. |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Fats and oils, LC-GC-FID, Mineral oil aromatic hydrocarbon (MOAH), Saponification, Hydrocarbons, Aromatic, Mineral Oil, Hydrocarbons, Aromatic/analysis, Mineral Oil/analysis, Mineral Oil/chemistry, Microwaves, Analytical challenge, Fats and oil, Hydrocarbon analysis, Internal standards, Methyl naphthalene, Microwave-assisted, Mineral oil aromatic hydrocarbon, Sources of uncertainty, Uncertainty, Analytical Chemistry, Environmental Chemistry, Biochemistry, Spectroscopy, Physical, chemical, mathematical & earth Sciences, Chemistry, Life sciences, Food science, Physique, chimie, mathématiques & sciences de la terre, Chimie, Sciences du vivant, Sciences des denrées alimentaires |
| الوصف: | [en] BACKGROUND: Mineral oil aromatic hydrocarbon (MOAH) analysis in foods is a major analytical challenge. Quantification is associated with a high uncertainty. The sources of uncertainty are multiple, but the major one is related to data interpretation and integration, which is partially derived from insufficiently efficient sample preparation. Recently, an updated ISO method for the analysis of mineral oil in fats and oils and a standard operating procedure for infant formula analysis have been published. Both methods reported significantly different (up to 1.25) distributions of the internal standards used for quantification (i.e., tri-tert-butyl benzene (TBB) and 2-methyl naphthalene (2-MN)) over the different solvent phases used in the saponification step.RESULTS: In this work, a microwave-assisted saponification and extraction method was optimized for MOAH analysis to solve the problem related to the MOAH internal standards partition. The paper examines the impact of the solvent mixture used, the concentration of KOH on the partition of TBB and 2-MN, and the effect of the matrix and the washing step to extract the unsaponifiable fraction containing the mineral oils.SIGNIFICANCE: The optimized procedure achieved a TBB/2-MN ratio of 1.05 ± 0.01 tested in five different fats and oils, namely, sunflower, rapeseed, coconut, palm, and extra virgin olive oils. The method can significantly contribute to reducing the uncertainty of the MOAH quantification when saponification is applied. |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501Test article peer reviewed |
| اللغة: | English |
| العلاقة: | https://api.elsevier.com/content/article/PII:S0003267024005890?httpAccept=text/xmlTest; urn:issn:0003-2670; urn:issn:1873-4324 |
| DOI: | 10.1016/j.aca.2024.342788 |
| الوصول الحر: | https://orbi.uliege.be/handle/2268/319578Test |
| حقوق: | embargoed access http://purl.org/coar/access_right/c_f1cfTest info:eu-repo/semantics/embargoedAccess |
| رقم الانضمام: | edsorb.319578 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1016/j.aca.2024.342788 |
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