Concentrations of toxic and essential elements in Lebanese bread

2012 ◽  
Vol 84 (2) ◽  
pp. 181-190 ◽  
Author(s):  
Rola Bou Khouzam ◽  
Pawel Pohl ◽  
Baydaa Al Ayoubi ◽  
Farouk Jaber ◽  
Ryszard Lobinski
Keyword(s):  
Inductively Coupled Plasma ◽  
Essential Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Geographical Regions ◽  
Plasma Mass Spectrometry ◽  
Dry Seasons ◽  
Double Focusing ◽  
Ultratrace Elements ◽  
Wet And Dry Seasons

Concentrations of 20 minor, trace, and ultratrace elements relevant to human health (Ag, Al, As, Cd, Co, Cr, Cu, Fe, Hg, Li, Mn, Mo, Ni, Pb, Sb, Se, Si, Sn, V, and Zn) were determined in three varieties of Lebanese bread (white and brown double loaf bread, Saj bread) sampled at five geographical regions (Grand Beirut, South of Lebanon, North of Lebanon, Mount of Lebanon, and Beka’a) during the wet and dry seasons. The analyses were carried out by double-focusing sector-field inductively coupled plasma-mass spectrometry (DF-SF-ICP-MS). The data were discussed in terms of nutritional elements supplied by type of bread, the risk of contamination by toxic elements (As, Cd, Pb) owing to the manufacturing process, and variations related to geographic distribution and seasonal sampling.

scholarly journals Evaluation of Selected Essential Elements in Khalas Dates from Date Palm Determined by Inductively Coupled Plasma-Mass Spectrometry

2019 ◽  
Vol 2019 ◽  
pp. 1-5
Author(s):  
Eid I. Brima
Keyword(s):  
Mass Spectrometry ◽  
Saudi Arabia ◽  
Inductively Coupled Plasma ◽  
Daily Intake ◽  
Essential Elements ◽  
Limited Information ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Wet Weight

In terms of nutrition, dates are an important commodity because they are a source of carbohydrates and minerals. Saudi Arabia is the second largest producer of dates worldwide. Khalas is the tenth most popular date type in the Kingdom of Saudi Arabia (KSA), but only limited information related to the levels of essential nutrients in Khalas dates is available. The concentrations of Mn, Cu, Zn, and Se were determined using inductively coupled plasma-mass spectrometry (ICP-MS). The average concentrations in wet weight were as follows (mg/kg): Mn (2.90 ± 0.54), Cu (1.78 ± 0.64), Zn (1.72 ± 0.42), and Se (0.10 ± 0.06). The calculated intakes (μg/kg bw day) per 100 g dates for each element were as follows: Mn (4.14), Cu (2.54), Zn (2.46), and Se (0.14), which represent 0.14%, 0.51%, 0.25%, and 0.2%, respectively, of the provisional maximum tolerable daily intake (PMTDI) recommended by the EFSA/WHO. It was found that levels of the analysed essential elements in up to 100 g of Khalas dates do not exceed the level set by the EFSA/WHO.

scholarly journals Quantitative Evaluation of 28 Mineral Elements by Inductively Coupled Plasma/Mass Spectrometry and Its Application in Source Identification of Indian Opium

2005 ◽  
Vol 88 (5) ◽  
pp. 1469-1484 ◽  
Author(s):  
Mohanakrishna R Mudiam ◽  
Sanjukta A Kumar ◽  
Sudhershanan Mahadevan ◽  
Priyankar Ghosh ◽  
Rajendra K Sarin ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Analytical Data ◽  
Mineral Elements ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Geographical Regions ◽  
Plasma Mass Spectrometry ◽  
Elemental Data

Abstract An analytical method based on inductively coupled plasma/mass spectrometry (ICP/MS) was developed for the determination of 28 mineral elements (Cr, Mn, Co, Ni, Cu, Zn, Ga, Sr, Cd, Ag, Ba, Pb, Bi Y, La, Ce, Nd, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) in Indian opium samples. The detection limits were found to be in the range of 0.0008–0.45 ng/mL. The recoveries of spiked samples for each element were found to be in the range of 83–106%, with a precision of less than 9%. A total of 124 opium samples from India were analyzed for the distribution pattern of the 28 mineral elements. Quantitative elemental data were subjected to chemometric analysis in order to determine an optimal classifier to evaluate the source of Indian opium. The study indicated that mineral elements might not be the suitable discriminators for the discrimination of licit opium-growing divisions of India. However, the methodology developed and the analytical data on elemental profile may find important forensic application in discriminating Indian opium with that of licit and illicit opium originating from different geographical regions of world.

scholarly journals Canned sea fish marketed in Serbia: their zinc, copper, and iron levels and contribution to the dietary intake

2018 ◽  
Vol 69 (1) ◽  
pp. 55-60
Author(s):  
Aleksandar R. Popović ◽  
Dubravka J. Relić ◽  
Danijela V. Vranić ◽  
Jelena A. Babić-Milijašević ◽  
Lato L. Pezo ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Daily Intake ◽  
Essential Elements ◽  
Acid Digestion ◽  
Tomato Sauce ◽  
Inductively Coupled ◽  
Canned Tuna ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Sea Fish

Abstract The aim of this study was to determine the levels of Zn, Cu, and Fe in three canned fish species marketed Serbia to see if they meet recommended daily intake requirements or exceed safety limits. We collected a total of 207 samples of canned tuna, sardine, and mackerel, in oil or tomato sauce and analysed them with inductively coupled plasma mass spectrometry (ICP-MS) after acid digestion. The highest levels were obtained for Zn (15.1 mg kg-1) and Cu (1.37 mg kg-1) in sardine in oil and tomato sauce, respectively, and for Fe (18.98 mg kg-1) in mackerel in tomato sauce. Our results keep within the ranges reported by several national food databases and available literature data, with a few exceptions. Our findings also single out canned sardines as the richest source of the three essential elements combined. The estimated daily intake (EDI) of the three essential elements, however, was subpar, and ranged between 0.14 % and 0.72 % of the recommended dietary allowance (RDA) for Zn, Cu, and Fe.

scholarly journals Variations in Essential Elements After Malignant Transformation of Kidney Epithelial Tubular Cells

2020 ◽  
Vol 5 (6) ◽  
Keyword(s):  
Metabolic Pathways ◽  
Inductively Coupled Plasma ◽  
Element Concentration ◽  
Target Therapy ◽  
Essential Elements ◽  
New Drugs ◽  
Tubular Cells ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Cell line-based research is a valuable tool for the study of cancer physiopathology and the discovery of new drugs for use in clinical practice. In this study, inductively coupled plasma mass spectrometry (ICP-MS) was used to estimate Ca, Co, Cu, Fe, K, Mg, Mn, Na, P, S, Se, and Zn in epithelial tubular cells (HK-2) and kidney tumor cells (Caki-1 cells). The most relevant difference was a decrease in the contents of Ca, Cu, Fe, K, Mg, Mn, Na, P, S, and Zn. A significant accumulation of Co was also detected in Caki-1 cells. The fold change variation of each element concentration between HK-2 and Caki-1 cells was Ca (‒0.40), Co (1.37), Cu (‒0.68), Fe (‒0.56), K (‒0.40), Mg (‒0.41), Mn (-0.54), Na (‒0.33), P (‒0.31), S (‒0.26), and Zn (‒0.73). These findings indicate that the elements mainly affect the metabolic pathways of epithelial kidney cells. Thus, our findings open a new avenue for RCC target therapy.

scholarly journals Quantitative Analysis of Iron-Containing Protein Myoglobin in Different Foodstuffs by Liquid Chromatography Coupled to High-Resolution Inductively Coupled Plasma Mass Spectrometry

2004 ◽  
Vol 87 (1) ◽  
pp. 253-258 ◽  
Author(s):  
Chris F Harrington ◽  
Selvarani Elahi ◽  
Sheila A Merson ◽  
Punitha Ponnampalavanar
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Inductively Coupled Plasma ◽  
Heme Iron ◽  
Processed Meat ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Double Focusing ◽  
Fish And Shellfish

Abstract Quantitative determination was made of the iron-containing protein myoglobin in a range of different foods, including meat, processed meat, fish, and shellfish, by liquid chromatography coupled to a double-focusing sector field inductively coupled plasma mass spectrometry (ICP–MS). The concentration of myoglobin determined in the samples ranged from 0 to 6.5 mg/kg, and the analytical precision (coefficient of variation) for the analysis of 8 replicate raw steak extracts was 2.1%. By using a double-focusing ICP–MS instrument, direct on-line detection of the most abundant iron isotope 56Fe was possible without interference from a major polyatomic interference (40Ar16O). Separation of myoglobin from other iron-containing compounds was facilitated by use of a gel filtration column (TSK Gel G2000SW) and Tris buffer (pH 7.2). The chromatographic column was coupled directly to the nebulizer of the ICP–MS instrument by a short piece of PEEK® tubing. To ensure sufficient quality control throughout the study, a raw beefsteak sample was developed as an in-house reference material. The concentration of the heme-iron-containing protein myoglobin in this sample was determined by the developed method and independently by a conventional spectrophotometric method. The agreement between the 2 analytical techniques was very good. The detection limit (3 times the signal/noise ratio for a blank) of the reported method for myoglobin was 0.85 ng Fe/L.

Elemental chemical composition and As speciation in rice varieties selected for biofortification

2020 ◽  
Vol 12 (16) ◽  
pp. 2102-2113 ◽  
Author(s):  
Bruna Moreira Freire ◽  
Vivian da Silva Santos ◽  
Pericles de Carvalho Ferreira Neves ◽  
Juliana Maria Oliveira Souza Reis ◽  
Samuel Simião de Souza ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Toxic Elements ◽  
Hydride Generation ◽  
Essential Elements ◽  
Rice Varieties ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Rice Samples

Toxic elements, essential elements and other elements were determined in Brazilian rice by inductively coupled plasma-mass spectrometry (ICP-MS). A method for As speciation using hydride generation was developed and applied in rice samples.

scholarly journals Discrimination of Tunisian Honey by Mineral and Trace Element Chemometrics Profiling

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 724
Author(s):  
Giuseppa Di Bella ◽  
Angela Giorgia Potortì ◽  
Asma Beltifa ◽  
Hedi Ben Mansour ◽  
Vincenzo Nava ◽  
...  
Keyword(s):  
Health Risks ◽  
Inductively Coupled Plasma ◽  
Chemical Elements ◽  
Essential Elements ◽  
Potential Health ◽  
Inductively Coupled ◽  
Sidi Bouzid ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Prickly Pears

The concentrations of 19 chemical elements have been determined in 36 honey samples of different botanical (wildflower, eucalyptus, eucalyptus red flowers, prickly pears, lemon blossom, thyme, almond, rosemary and jujube) honeys from the three geographical areas of Tunisia (Sidi Bouzid, Nabeul and Sfax) using inductively coupled plasma mass spectrometry (ICP-MS). The aim of this work was to use the multielement analysis together with chemometric tools to verify the botanical and the geographical origin of honeys. The correlation on the basis of mineral element content between the honey samples and their botanical and/or geographical origins was in some measure achieved. The data collected on the samples were also used to evaluate the nutritional quality and the potential health risks associated with elements via consumption of the Tunisian honey. According to the results obtained, the intake of essential elements was small, and the potential health risks associated with toxic or potentially toxic elements via consumption of this food were overall insignificant.

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