Recently, presence of mineral oil in numerous foods has been detected. The analysis of mineral oil in food is convoluted since it comprises MOSH (saturated hydrocarbons) and variable amounts of mainly alkylated MOAH (aromatic hydrocarbons). Both fractions have a different toxicological profile and therefore they need to be assessed separately. For Belgium, occurrence data are available comprising concentrations of 217 food samples. These data were used, in combination with the 2014/15 Belgian Food Consumption Survey data, in a lower bound scenario to evaluate the dietary exposure of the Belgian population. Exposure to mineral oil was much lower compared to the results previously reported by EFSA and RIVM. The main contributors in Belgium were similar to previous studies (i.e. cereal products and oils), but an important additional contribution of non-alcoholic drinks was identified due to the presence of mineral oil in coffee. However, the concentration of mineral oil was determined from the dry product by applying a dilution factor with transfer rate of 100%, and not in the prepared coffee.This study gives an account of the dietary exposure of the Belgian population to mineral oil for the first time and reports the associated uncertainties.
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http://dx.doi.org/10.1080/19440049.2019.1684573 | DOI Listing |
Brain Res
January 2025
Department of Neurosurgery, Division of Functional and Integrative Medicine, Department of Neurosurgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
Laser speckle flowmetry (LSF) is a noninvasive tool for cerebral blood flow (CBF) measurement via a cranial bone window. LSF is influenced by various factors including the extent of removal of bone and dura mater and tissue wetness in the bone window. In this study, we aimed to characterize the effect of these conditions on LSF signals and identify optimal measurement conditions for CBF LSF measurements in rats.
View Article and Find Full Text PDFPhys Chem Chem Phys
January 2025
Laboratorio de Espectroscopía Atómica y Molecular (LEAM), Universidad Industrial de Santander, Colombia.
Illite mineral is present in shale rocks, and its wettability behavior is significant for the oil and gas industry. In this work, the pH effects on the affinity between the (001) and (010) crystallographic planes of illite K(SiAl)(AlMg)O(OH) and direct and inverse emulsions were studied using molecular dynamics simulations. To develop the simulations, an atomistic model of illite was constructed following Löwenstein's rule.
View Article and Find Full Text PDFSci Rep
January 2025
School of New Energy, Longdong University, Qingyang, 745000, China.
In this work, taking wells LD1, LD2, and LY2 in the Laifeng-Xianfeng area as the research target, through core description, intensive core sampling, experimental analysis, imaging logging and other methods, the characteristics of graptolite zone development, organic carbon content, mineral composition, shale reservoir properties and the gas-bearing properties of the Wufeng-Longmaxi Formation shale are systematically analyzed. The main factors affecting the gas-bearing capacity of the Wufeng-Longmaxi Formation shale are extensively evaluated. The results reveal the following: ① The Wufeng-Longmaxi Formation shale, which was deposited in a deep-water shelf environment, has a large thickness (50-60 m) and a stable distribution.
View Article and Find Full Text PDFSci Rep
January 2025
Guizhou Coalfield Geology Bureau, Guizhou, 550016, China.
In-situ stress plays a pivotal role in influencing the desorption, adsorption, and transportation of coalbed methane. The reservoir gas content represents a pivotal physical parameter, encapsulating both the coalbed methane enrichment capacity and the underlying enrichment law of the reservoir. This investigation collates, computes, and consolidates data concerning pore pressure, breakdown pressure, closure pressure, triaxial principal stress, gas content, lateral pressure coefficient, and other pertinent variables from coal reservoirs within several coal-bearing synclines in the Liupanshui coalfield, China.
View Article and Find Full Text PDFMol Biol Res Commun
January 2025
Department of Soil Science, College of Agriculture, Razi University, Kermanshah, Iran.
The bioremediation method is considered an economical and environmentally friendly strategy for the remediation of oil-contaminated soils. However, some oil field areas have extreme environmental conditions that make it difficult to establish microbes for bioreme-diation. In this study, bacteria were isolated from oil-contaminated soils of the Dehloran oil fields, which have very harsh soil and weather conditions.
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