Long-Aged Parmigiano Reggiano PDO: Trace Element Determination Targeted to Health

The concentrations of four health-related trace elements were measured using Atomic Absorption Spectroscopy in long-ripened (24- and 40-months) Parmigiano Reggiano (PR) PDO cheese, obtained from both summer and winter milk. To date, there are limited data on PR trace element concentrations, and no data about long-ripened cheese, especially when ripened for 40 months. Thus, the aim of this investigation is to determine chromium, manganese, selenium, and zinc concentrations, improving the available data on these trace elements and increasing knowledge of the biological properties of PR linked to their content in this cheese. The results show that 40-month ripened PR is a source of selenium and chromium, according to definitions under the European Regulation 1924/2006, as a 30 g cheese portion contains 11 ± 2 μg (summer milk) and 10 ± 1 μg (winter milk) of selenium and 8 ± 1 μg (summer and winter milk) of chromium, providing in excess of 8.25 and 6 μg per portion, respectively. This represents 15% of nutrient reference intake values for adults. These findings allow for the claim to be made that PR possesses the health properties ascribed to food sources of selenium and chromium according to European Regulation 432/2012.

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Atomic absorption spectrometry in wine analysis

Macedonian Journal of Chemistry and Chemical Engineering ◽

10.20450/mjcce.2009.218 ◽

2009 ◽

Vol 28 (1) ◽

pp. 17 ◽

Cited By ~ 22

Author(s):

Trajče Stafilov ◽

Irina Karadjova

Keyword(s):

Trace Elements ◽

Atomic Absorption Spectrometry ◽

Trace Element ◽

Atomic Absorption ◽

Absorption Spectrometry ◽

Analytical Control ◽

Allowable Limit ◽

Wine Production ◽

Element Determination ◽

Separation And Preconcentration

This article reviews methods for the determination and identification of trace elements in wine by using atomic absorption spectrometry (AAS). Wine is one of the most widely consumed beverages and strict analytical control of trace elements content is required during the whole process of wine production from grape to the final product. Levels of trace elements in wine are important from both points of view: organoleptic – Fe, Cu, Mn and Zn concentrations are directly related to the destabilization and oxidative evolution of wines, and toxicological – toxic elements content should be under the allowable limit, wine identification. The identification of metals in wine is subject of increasing interest since complexation may reduce their toxicity and bioavailability. AAS is one of widely used methods for routine analytical control of wine quality recommended by the International Organization of Vine and Wine. Two main approaches – preliminary sample digestion and direct instrumental measurement combined with AAS for trace element determination in wines are reviewed and discussed. Procedures for various sample pretreatments, for trace element separation and preconcentration are presented. Advances in metal identification studies in wines based on AAS are presented.

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Influence of TiO2 and ZrO2 nanoparticles deposition on a stainless steel furnace used for trace element determination by TS-FF-AAS

Analytical Methods ◽

10.1039/c9ay00063a ◽

2019 ◽

Vol 11 (11) ◽

pp. 1551-1557

Author(s):

G. Carrone ◽

D. Onna ◽

E. Morzan ◽

R. Candal ◽

Y. S. Minaberry ◽

...

Keyword(s):

Stainless Steel ◽

Trace Elements ◽

Trace Element ◽

Furnace Wall ◽

Zro2 Nanoparticles ◽

Trace Element Determination ◽

Element Determination ◽

Steel Furnace ◽

Nanoparticle Coatings

Improvement of the analytical performance of TS-FF-AAS, for determination of trace elements (Ag, Cd, Pb and Se) in different matrices, by using nanoparticle coatings over the inner furnace wall.

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Serum Concentrations of Essential Trace and Toxic Elements in Healthy and Disease-Affected Dogs

Animals ◽

10.3390/ani10061052 ◽

2020 ◽

Vol 10 (6) ◽

pp. 1052

Author(s):

Yolanda Cedeño ◽

Marta Miranda ◽

Inmaculada Orjales ◽

Carlos Herrero-Latorre ◽

Maruska Suárez ◽

...

Keyword(s):

Trace Elements ◽

Trace Element ◽

Toxic Elements ◽

Toxic Element ◽

Diagnostic Tools ◽

Reference Ranges ◽

Serum Concentrations ◽

Serum Samples ◽

Element Determination ◽

Element Concentrations

This study was designed (i) to establish reference ranges for the essential trace element and background levels of toxic element exposure in the healthy/normal dog population, and (ii) to evaluate whether trace element concentrations vary in dogs suffering from different pathologies. Blood serum samples were collected from 187 healthy and diseased dogs at the Veterinary Teaching Hospital, Faculty of Veterinary Medicine, University of Santiago de Compostela (northwest Spain). The samples were acid digested, and the concentrations of trace elements (Co, Cr, Cu, Fe, Mn, Mo, Ni, Se and Zn) and toxic elements (As, Cd, Hg and Pb) were determined by inductively coupled plasma-mass spectrometry (ICP-MS). This enabled us to establish reference ranges for the essential trace elements and the level of toxic element exposure in dogs, and to identify several clinical situations associated with variations in trace elements in serum. Relative to concentrations in healthy control dogs, statistically significant differences were observed in the concentrations of Cu (significantly higher in hepatic, inflammatory/infectious and oncological categories), Mo (significantly higher in renal category), Se (significantly lower in gastrointestinal category) and Zn (significantly lower in gastrointestinal, inflammatory/infectious and renal categories). Trace element concentrations can be a cause or consequence of disease, and the study findings indicate that trace element determination in serum provides useful information on the pathogenesis of certain diseases. Further research on the serum concentrations of trace elements, particularly in relation to other biochemical parameters and diagnostic tools, may provide valuable information for the diagnosis of diseases in dogs and the disease prognosis.

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Maternal Selenium, Copper and Zinc Concentrations in Early Pregnancy, and the Association with Fertility

Nutrients ◽

10.3390/nu11071609 ◽

2019 ◽

Vol 11 (7) ◽

pp. 1609 ◽

Cited By ~ 4

Author(s):

Jessica A. Grieger ◽

Luke E. Grzeskowiak ◽

Rebecca L. Wilson ◽

Tina Bianco-Miotto ◽

Shalem Y. Leemaqz ◽

...

Keyword(s):

Trace Elements ◽

Relative Risk ◽

Trace Element ◽

Plasma Concentrations ◽

Maternal Plasma ◽

Dietary Intakes ◽

Time To Pregnancy ◽

Zinc Concentrations ◽

Copper Zinc ◽

Low Selenium

Trace elements such as zinc, copper, and selenium are essential for reproductive health, but there is limited work examining how circulating trace elements may associate with fertility in humans. The aim of this study was to determine the association between maternal plasma concentrations of zinc, copper, and selenium, and time to pregnancy and subfertility. Australian women (n = 1060) who participated in the multi-centre prospective Screening for Pregnancy Endpoints study were included. Maternal plasma concentrations of copper, zinc and selenium were assessed at 15 ± 1 weeks’ gestation. Estimates of retrospectively reported time to pregnancy were documented as number of months to conceive; subfertility was defined as taking more than 12 months to conceive. A range of maternal and paternal adjustments were included. Women who had lower zinc (time ratio, 1.20 (0.99–1.44)) or who had lower selenium concentrations (1.19 (1.01–1.40)) had a longer time to pregnancy, equivalent to a median difference in time to pregnancy of around 0.6 months. Women with low selenium concentrations were also at a 1.46 (1.06–2.03) greater relative risk for subfertility compared to women with higher selenium concentrations. There were no associations between copper and time to pregnancy or subfertility. Lower selenium and zinc trace element concentrations, which likely reflect lower dietary intakes, associate with a longer time to pregnancy. Further research supporting our work is required, which may inform recommendations to increase maternal trace element intake in women planning a pregnancy.

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Novel Carbohydrate-Dependent Biological Properties of Human Health Related Lectins and Glycoconjugates

10.37099/mtu.dc.etdr/111 ◽

2016 ◽

Author(s):

Melanie Talaga

Keyword(s):

Human Health ◽

Biological Properties ◽

Health Related

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Methylmercury and Trace Element Distribution in the Organs of Stenella coeruleoalba Dolphins Stranded on the French Mediterranean Coast

Open Environmental Sciences ◽

10.2174/1876325101408010035 ◽

2014 ◽

Vol 8 (1) ◽

pp. 35-48 ◽

Cited By ~ 3

Author(s):

Emmanuel Wafo ◽

Véronique Risoul ◽

Thérèse Schembri ◽

Véronique Lagadec ◽

Frank Dhermain ◽

...

Keyword(s):

Trace Elements ◽

Trace Element ◽

Marine Pollution ◽

Element Distribution ◽

Mediterranean Coast ◽

Trace Element Distribution ◽

Slight Reduction ◽

Stenella Coeruleoalba ◽

Contamination Levels

The main objective of this study was to evaluate the contamination by mercury (Hg), methylmercury (Me-Hg), cadmium (Cd), selenium (Se), zinc (Zn), copper (Cu), iron (Fe) and manganese (Mn) in dolphins stranded on the French Mediterranean coast. The distributions of these contaminants in the organs of dolphins have also been studied. Overall, contamination levels varied according to the following sequence: liver > kidney > lung > muscle, except for cadmium (kidney > liver > lung > muscle). Size and sex of animals were also considered. Young dolphins were less impacted with trace elements than adults, except for copper. Among the studied parameters, the most important appeared to be the size of mammals. In addition, in the case of mercury and selenium, the sex of mammals seemed to be also relevant. The correlations between the concentrations of trace elements suggest the existence of detoxification processes. Since 1990s, using dolphins for tracing marine pollution, a slight reduction in the burden of the considered trace elements could be noted.

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Spatial distribution and potential ecological risk assessment of some trace elements in sediments and grey mangrove (Avicennia marina) along the Arabian Gulf coast, Saudi Arabia

Open Chemistry ◽

10.1515/chem-2020-0010 ◽

2020 ◽

Vol 18 (1) ◽

pp. 77-96

Author(s):

Hameed Alsamadany ◽

Hassan S. Al-Zahrani ◽

El-Metwally M. Selim ◽

Mohsen M. El-Sherbiny

Keyword(s):

Trace Elements ◽

Trace Element ◽

Ecological Risk ◽

Oil Pollution ◽

Gulf Coast ◽

Arabian Gulf ◽

Avicennia Marina ◽

Potential Ecological Risk ◽

Average Concentration ◽

Grey Mangrove

AbstractTo assess trace element concentrations (Zn, Cu, Pb, Cr, Cd and Ni) in the mangrove swamps along the Saudi coast of the Arabian Gulf, thirteen samples of surface sediment and leaves of grey mangrove, Avicennia marina were collected and analyzed. The detected trace element contents (μg g-1) in surface sediments were in the following descending order according to their mean values; Cr (49.18) > Zn (48.48) > Cu (43.06) > Pb (26.61) > Ni (22.88) > Cd (3.21). The results showed that the average concentrations of Cd and Pb exceeded their world average concentration of shale. The geo-accumulation, potential ecological risk and toxicity response indices demonstrated that trace elements have posed a considerable ecological risk, especially Cd. The inter-relationships between physico-chemical characters and trace elements suggests that grained particles of mud represent a noteworthy character in the distribution of trace elements compared to organic materials. Moreover, the results revealed that Zn was clearly bioaccumulated in leaf tissues A. marina. Dredging, landfilling, sewage effluents and oil pollution can be the paramount sources of pollution in the area under investigation.

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Vitamin Analysis, Trace Elements Content, and Their Extractabilities in Tetrapleura tetraptera

Journal of Chemistry ◽

10.1155/2020/1608341 ◽

2020 ◽

Vol 2020 ◽

pp. 1-8

Author(s):

Prince Oteng ◽

John K. Otchere ◽

Stephen Adusei ◽

Richard Q. Mensah ◽

Emmanuel Tei-Mensah

Keyword(s):

Trace Elements ◽

Vitamin A ◽

Vitamin C ◽

Trace Element ◽

Trace Element Content ◽

Beta Carotene ◽

Flame Atomic Absorption ◽

Significant Difference ◽

Tetrapleura Tetraptera ◽

Vitamin Analysis

Tetrapleura tetraptera is widely cherished in African traditional homes because of its alleged therapeutic and nutritional properties. This present study aimed at determining the levels of vitamin A, C, E, and beta-carotene and trace element (Fe, Cu, Mn, Co, Se, and Zn) concentrations and their extractabilities in the pulp, seeds, and whole fruit (mixture of pulp and seeds) of T. tetraptera. The total trace element concentration of Fe, Cu, Co, Mn, and Zn and their extractabilities (%) were determined using flame atomic absorption spectrometer (FAAS), whereas UV-VIS spectrophotometer was used to determine selenium concentration. The trace element content (mg/kg) based on dry weight in the pulp, seeds, and whole fruit was Fe (162.00 ± 7.14, 115.00 ± 12.00, and 154.00 ± 25.20, respectively), Zn (31.60 ± 4.77, 43.40 ± 5.29, and 41.50 ± 8.97, respectively), Cu (16.10 ± 4.98, 11.90 ± 8.40, and 17.20 ± 14.50, respectively), Mn (55.30 ± 2.41, 156.00 ± 10.20, and 122.00 ± 5.29, respectively), Co (38.10 ± 6.40, 21.10 ± 7.15, and 44.00 ± 14.90, respectively), and Se (1.49 ± 0.17, 2.43 ± 0.28, and 2.97 ± 0.27 μg/g, respectively). The mineral extractabilities (%) in the pulp, seeds, and whole fruit of T. tetraptera were established to be in the order Co > Zn > Fe > Cu > Se > Mn. Also, the chromatographic method (HPLC) was used to evaluate vitamin E concentration, and vitamin C and concentration of beta-carotene were calculated from the obtained concentration of vitamin A using a conversion factor by the titrimetric method. From the results of vitamin analysis, a significant difference (p<0.05) was observed among the pulp, seeds, and whole fruit for vitamin C and E. However, no significant difference (p>0.05) was perceived among these plant parts for vitamin A and beta-carotene. This study has therefore revealed that the pulp, seeds, and whole fruit of T. tetraptera contain varying concentrations of vitamins and trace elements and has given many vital insights on which part of T. tetraptera to consume, as concentrations of these nutrients differ in the discrete parts of the fruit.

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Comparative Genomics of Trace Element Dependence in Biology

Journal of Biological Chemistry ◽

10.1074/jbc.r110.172833 ◽

2011 ◽

Vol 286 (27) ◽

pp. 23623-23629 ◽

Cited By ~ 36

Author(s):

Yan Zhang ◽

Vadim N. Gladyshev

Keyword(s):

Trace Elements ◽

Comparative Genomics ◽

Trace Element ◽

Evolutionary Dynamics ◽

Protein Families ◽

Fundamental Properties ◽

Recent Advances ◽

Living Organisms ◽

Zinc Protein

Biological trace elements are needed in small quantities but are used by all living organisms. A growing list of trace element-dependent proteins and trace element utilization pathways highlights the importance of these elements for life. In this minireview, we focus on recent advances in comparative genomics of trace elements and explore the evolutionary dynamics of the dependence of user proteins on these elements. Many zinc protein families evolved representatives that lack this metal, whereas selenocysteine in proteins is dynamically exchanged with cysteine. Several other elements, such as molybdenum and nickel, have a limited number of user protein families, but they are strictly dependent on these metals. Comparative genomics of trace elements provides a foundation for investigating the fundamental properties, functions, and evolutionary dynamics of trace element dependence in biology.

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