In situations where breastfeeding is impractical, milk formulas have emerged as the primary choice for infant nutrition. Numerous global studies have scrutinized the fluoride content in these formulas, uncovering fluctuations in fluoride levels directly associated with the method of preparation. This variability poses a potential risk of elevated fluoride concentrations and, consequently, an increased susceptibility to dental fluorosis in infants. The primary objective of this review is to intricately delineate the fluoride content in dairy formulas and emphasize the variability of these values concerning their reconstitution process. The review's findings reveal that, among the 17 studies assessing fluoride levels in infant formula, milk-based formulas exhibit a range of 0.01-0.92 ppm, with only two studies exceeding 1.30 ppm. Conversely, soy-based formulas demonstrate values ranging from 0.13-1.11 ppm. In conclusion, the observed variability in fluoride levels in infant formulas is ascribed to the choice of the water source employed in the preparation process. This underscores the paramount importance of meticulously adhering to recommendations and guidelines provided by healthcare professionals concerning the utilization of these formulas and their meticulous reconstitution.
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http://dx.doi.org/10.3390/children10121896 | DOI Listing |
Water Res
December 2024
School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, Shanghai, PR China. Electronic address:
Dense Janus membranes (JMs) are potential candidates in hypersaline wastewater treatments for membrane distillation (MD). However, dense surface layers generally add obvious membrane mass transfer resistance, limiting its practical application. In this study, a novel dense JM was facilely developed by controlled interfacial polymerization utilizing a phosphonium functional monomer (THPC) on hydrophilic polyvinylidene fluoride (PVDF) substrate.
View Article and Find Full Text PDFMicrob Biotechnol
December 2024
Department of Biochemistry, Molecular Biology and Biophysics and Biotechnology Institute, University of Minnesota, Twin Cities, USA.
A major factor limiting the biodegradation of organofluorine compounds has been highlighted as fluoride anion toxicity produced by defluorinating enzymes. Here, two highly active defluorinases with different activities were constitutively expressed in Pseudomonas putida ATCC 12633 to examine adaption to fluoride stress. Each strain was grown on α-fluorophenylacetic acid as the sole carbon source via defluorination to mandelic acid, and each showed immediate fluoride release and delayed growth.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Physics, Faculty of Science, Menoufia University, Shebin El-Koom, Menoufia, 32511, Egypt.
Barium fluoride borosilicate glass samples reinforced with varying amounts of GdO (BSBLG0-BSBLG4) have been manufactured using the conventional melt quenching procedure in order to provide additional research on the type of borosilicate glass. Structural, physical, and linear optical characteristics as well as γ-ray attenuation capacity of barium fluoride borosilicate doped with GdO was investigated. X-ray diffraction pattern proving the amorphous nature of the glass samples due to the absence of a distinctive crystalline characteristic peak.
View Article and Find Full Text PDFMater Horiz
December 2024
Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, 80-233 Gdansk, Poland.
A porous, photocatalytically active, and water-stable composite membrane has been developed based on Cu-NH-MIL-125(Ti), a titanium-based metal-organic framework (MOF) and PVDF polymeric matrix. To tune the structural and functional properties of the PVDF/MOF composites, the loading degree of the MOF within the polymer was systematically varied. The most effective performance of the composite material was achieved with a 10% wt/wt loading of MOF into the PVDF matrix.
View Article and Find Full Text PDFEnviron Geochem Health
December 2024
School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang, 330013, Jiangxi, People's Republic of China.
Fluoride contamination is a serious environmental problem in lepidolite hydrometallurgy wastewater. The treatment of fluoride-bearing wastewater is challenging because of the presence of coexisting ions including lithium (Li), rubidium (Rb), silicate (SiO), sulfate radical (SO). However, aluminum-modified zeolite (Al@zeolite) with sufficient hydroxyl groups and high adaptability has unique advantages for eliminating fluoride from lepidolite hydrometallurgy wastewater.
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