scholarly journals The Biosorption Capacity of Saccharomyces cerevisiae for Cadmium in Milk

2020 ◽  
Author(s):  
Ramoona Masoud ◽  
Kianoosh Khosravi-Darani ◽  
Anoosheh Sharifan ◽  
Gholam-Hasan Asadi ◽  
Habibollah Younesi
Keyword(s):  
Heavy Metals ◽  
Saccharomyces Cerevisiae ◽  
Metal Concentration ◽  
Inductively Coupled Plasma ◽  
Biomass Concentration ◽  
Biosorption Capacity ◽  
Inductively Coupled ◽  
Milk Samples ◽  
Icp Ms ◽  
Cadmium Absorption

This study aimed to evaluate the capacity of Saccharomyces cerevisiae for Cadmium absorption in Milk. Nowadays one of the most serious problems is heavy metals pollution. Applying microorgaisms as a novel biotechnology is so useful especially in foodstuffs. Among the biosorbents for heavy metals’ removal, Saccharomyces cerevisiae has got an increasing attention due to its popularity in food industry. In this regard, the effects of some important factors such as the initial metal concentration, biomass concentration and contact time on the biosorption capacity of Saccharomyces cerevisiae were studied. The biosorption was analyzed by the inductively coupled plasma mass spectrometer (ICP-MS). The maximum Cd bioremoval (70%) was at 80 μg/L of this metal concentration in milk samples containing 30×108 CFU Saccharomyces cerevisiae at the end of storage time (the 4th day). There were no significant differences in sensory and physicochemical properties of milk samples during storage (p < 0.05). The isotherm studies followed by two popular models; Langmuir and Freundlich and the results showed a better fit to the Langmuir isotherm. All together, the results of this project demonstrated that the approach of using this valuable yeast, could be applied for food and drinks’ detoxification and producing healthier foods.

scholarly journals The Biosorption Capacity of Saccharomyces Cerevisiae for Cadmium in Milk

Dairy ◽  
2020 ◽  
Vol 1 (2) ◽  
pp. 169-176
Author(s):  
Ramona Massoud ◽  
Kianoush Khosravi-Darani ◽  
Anousheh Sharifan ◽  
Gholam Hassan Asadi ◽  
Habibollah Younesi
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Heavy Metal ◽  
Inductively Coupled Plasma ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Biomass Concentration ◽  
Biosorption Capacity ◽  
Inductively Coupled ◽  
Milk Samples ◽  
Cadmium Absorption

This study aimed to evaluate the capacity of Saccharomyces cerevisiae for Cadmium absorption in milk. Nowadays, one of the most serious problems of the industrialized world is heavy metal pollution. Applying microorganisms as novel biotechnology is very useful, especially in foodstuffs. Among the biosorbents used for heavy metal removal, Saccharomyces cerevisiae has received increasing attention due to its popularity in the food industry. In this regard, the effects of some important factors such as the initial metal concentration, biomass concentration and contact time on the biosorption capacity of Saccharomyces cerevisiae were studied. The biosorption was analyzed by the inductively coupled plasma mass spectrometer (ICP-MS). The maximum cadmium (Cd) removal (70%) was at 80 μg/L of Cd concentration in milk samples containing 30 × 108 CFU Saccharomyces cerevisiae at the end of storage time (the 4th day). There were no significant differences in the sensory and physicochemical properties (pH, acidity and density) of milk samples during storage (p < 0.05). The isotherm studies were followed by two popular models, Langmuir and Freundlich, and the results showed a better fit to the Langmuir isotherm. Altogether, the results of this study demonstrate that the approach of using this valuable yeast could be applied for food detoxification and producing healthier foodstuffs.

Determination of As, Cd, Ni and Pb in PM10 – comparison of different sample work-up and analysis methods/Bestimmung von As, Cd, Ni und Pb in PM10 – Vergleich verschiedener Probenaufbereitungs- und Analysenverfahren

Gefahrstoffe ◽  
2020 ◽  
Vol 80 (06) ◽  
pp. 227-233 ◽  
Author(s):  
I. Beslic ◽  
J. Burger ◽  
F. Cadoni ◽  
D. Centioli ◽  
I. Kranjc ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Metal Concentration ◽  
Inductively Coupled Plasma ◽  
Ambient Air ◽  
Power Functions ◽  
Joint Research ◽  
Inductively Coupled ◽  
Target Values ◽  
Work Up

In 2015 the European Joint Research Center (JRC) for air quality in Ispra, Italy, carried out an intercomparison for the determination of PM10 and PM2.5 in ambient air. Five laboratories also analyzed the content of heavy metals (arsenic, cadmium, lead and nickel) in PM10 from filter samples collected during the intercomparison. Thus, all steps from sampling in the field to instrumental quantification of heavy metals in the laboratory could be statistically analyzed. The different techniques of sampling and sample work-up had no significant influence on the analysis results. However, the method of instrumental analysis strongly influenced them: The results of laboratories using the Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) coincided well in most cases. For laboratories using the Energy Dispersed X-Ray Fluorescence (ED-XRF) technique the uncertainty of the results strongly depended on the metal concentration. For cadmium the concentrations generally were too low for analysis by ED-XRF, for arsenic, lead and nickel the relative uncertainties decreased exponentially with increasing concentrations. The relation between metal concentration and the relative uncertainty of analysis results could be described as power functions. Analysis of lead and nickel by ED-XRF is well possible in the range of the EU limit and target values for these metals.

scholarly journals Analyses of Mineral Content and Heavy Metal of Honey Samples from South and East Region of Turkey by Using ICP-MS

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Serap Kılıç Altun ◽  
Hikmet Dinç ◽  
Nilgün Paksoy ◽  
Füsun Karaçal Temamoğulları ◽  
Mehmet Savrunlu
Keyword(s):  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Chemical Components ◽  
Geographical Differences ◽  
Mineral Contents ◽  
Inductively Coupled ◽  
East Region ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Multifloral Honey

The substantial of mineral ingredients in honey may symbolize the existence of elements in the plants and soil of the vicinity wherein the honey was taken. The aim of this study was to detect the levels of 13 elements (Potassium (K), Sodium (Na), Calcium (Ca), Iron (Fe), Zinc (Zn), Cadmium (Cd), Copper (Cu), Manganese (Mn), Lead (Pb), Nickel (Ni), Chromium (Cr), Aluminum (Al), and Selenium (Se)) in unifloral and multifloral honey samples from south and east regions of Turkey. Survey of 71 honey samples from seven different herbal origins, picked up from the south and east region of Turkey, was carried out to determine their mineral contents during 2015-2016. The mineral contents were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The most abundant minerals were K, Na, and Ca ranging within 1.18–268 ppm, 0.57–13.1 ppm, and 0.77–4.5 ppm, respectively. Zn and Cu were the most abundant trace element while Pb, Cd, Ni, and Cr were the lowest heavy metals in the honey samples surveyed, with regard to the concentrations of heavy metals such as Zn, Cu, Pb, Cd, Ni, and Cr suggested and influence of the botanical origin of element composition. Geochemical and geographical differences are probably related to the variations of the chemical components of honey samples.

scholarly journals Heavy Metals in Frozen and Canned Marine Fish of Korea

2010 ◽  
Vol 2 (3) ◽  
pp. 549 ◽  
Author(s):  
M. M. Islam ◽  
S. Bang ◽  
Kyoung-Woong Kim ◽  
M. K. Ahmed ◽  
M. Jannat
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Marine Fish ◽  
Mass Spectroscopy ◽  
Potential Risk ◽  
Inductively Coupled Plasma ◽  
Metal Contaminants ◽  
Inductively Coupled ◽  
Intake Level ◽  
Icp Ms

Heavy metal contaminants in fish are of particular interest because of the potential risk to humans who consume them. The edible muscles of eight different species of fishes were analyzed by ICP-MS (Inductively Coupled Plasma Mass Spectroscopy) for heavy metals, collected from Market in Gwangju, Korea during April-May in 2008. The concentrations of Hg, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn varied between 0.24±0.007 - 0.01±0.001, 44.54±5.69 - 1.23±0.20, 0.13±0.05 – ND (not detected), 1.32±0.47 - 0.09± 0.02, 3.13±2.53 - 0.63±0.06, 107.17±28.02 - 11.27±1.56, 12.38±1.23 - 0.25±0.02, 1.025±1.41 - 0.12±0.09, 0.74±0.28 - 0.05±0.03 and 80.30±17.09 - 22.35±6.89 mg/kg, respectively. The concentrations of arsenic and nickel exceeded the maximum allowable intake level. Keywords: Heavy metals; Marine fish; Korea. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v2i3.4667              J. Sci. Res. 2 (3), 551-557 (2010)

scholarly journals A Review of Metal Levels in Urban Dust, Their Methods of Determination, and Risk Assessment

Atmosphere ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 891
Author(s):  
Chikumbusko Chiziwa Kaonga ◽  
Ishmael Bobby Mphangwe Kosamu ◽  
Wells Robert Utembe
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Inductively Coupled Plasma ◽  
Urban Dust ◽  
Risk Levels ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Metal Levels ◽  
Plasma Mass Spectrometry

This review gives insights into the levels of metals in urban dust, their determination methods, and risk assessment. Urban dust harbors a number of pollutants, including heavy metals. There are various methods used for the sampling of urban dust for heavy-metal analysis and source-apportionment purposes, with the predominant one being the use of plastic sampling materials to avoid prior contamination. There are also various methods for the determination of metals, which include: atomic absorption spectroscopy (AAS) and inductively coupled plasma-mass spectrometry (ICP-MS), among others. Studies have shown that pollutants in urban dust are mainly derived from industrial activities and coal combustion, whereas traffic emissions are also an important, but not a predominant source of pollution. The varying particle-size distribution of urban dust and its large surface area makes it easier for the deposition and transport of heavy metals. Risk-assessment studies have shown that metals in urban dust could cause such problems as human pulmonary toxicity and reduction of invertebrate populations. The risk levels seem to be higher in children than adults, as some studies have shown. It is therefore important that studies on metals in urban dust should always incorporate risk assessment as one of the main issues.

scholarly journals Radioactivity and Heavy Metals Concentration in Italian (Calabrian) DOC Wines

2019 ◽  
Vol 9 (21) ◽  
pp. 4584 ◽  
Author(s):  
Caridi ◽  
Pappaterra ◽  
Belmusto ◽  
Messina ◽  
Belvedere ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Radiation Effects ◽  
Specific Activity ◽  
Protective Effects ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Effective Doses ◽  
Italian Legislation

: Wine is an alcoholic drink, largely used to accompany food, with a key role in the protective effects on cardiovascular diseases. This study was developed to investigate radioisotopes and heavy metal content of twenty red, rose and white Italian wines, belonging to controlled origin denomination (DOC) geographic areas of the Calabria region, south of Italy. High Purity Germanium (HPGe) Gamma Spectrometry was employed to evaluate anthropogenic (137Cs) and natural (40K) radionuclides specific activity. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was used to assess any possible heavy metals contamination by a comparison between Cu, Zn, Pb, B, As and Cd concentrations with the limits set by the Italian Legislation. Calculated annual effective doses due to the ingestion of investigated samples are under allowable levels (1 mSv/year), thus excluding the risk of ionizing radiation effects on humans. Regarding to the metals concentration, experimental results show that they are lower than the contamination threshold values, thus excluding their presence as pollutants.

scholarly journals Study on toxic metal levels in commercial marine organisms from Romanian market

2014 ◽  
Vol 25 (2) ◽  
pp. 59-64
Author(s):  
Sonia Amariei ◽  
Gheorghe Gutt ◽  
Mircea Oroian ◽  
Alexandra Bodnar
Keyword(s):  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Toxic Metal ◽  
Marine Organisms ◽  
Cadmium Content ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Metal Levels ◽  
Commission Regulation ◽  
Excessive Consumption

Abstract The goal of this study was to analyze the content of heavy metals in fish, shellfish, molluscs cephalopods on the Romanian market. We have analyzed heavy metals traces in sixteen marine organisms species. Analyses of heavy metal traces were done with mass spectrometer with inductively coupled plasma- ICP-MS, Agilent Technologies 7500 Series. Among the elements identified it was analyzed the content of Cd, Hg, Pb, metals with high toxicity to the human body, and the obtained values were interpreted in accordance with Commission Regulation (EC) No 1881/2006 concerning the maximum allowable quantity per kg wet product and Provisional Tolerated Weekly Intake (PTWI) established by the Joint Committee experts WHO / FAO. The risk assessment performed indicated that marine organisms were safe for the consumer except the four species that cadmium content may be exceeded for a regular or excessive consumption.

scholarly journals Assessment of Copper and Iron Concentration in Water of Yamuna River, Delhi, India

2020 ◽  
Vol 10 (2) ◽  
pp. 2251-2257
Keyword(s):  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Electronic Waste ◽  
Iron Concentration ◽  
Land Application ◽  
Yamuna River ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
River Yamuna

The concentration of Copper (Cu) and Iron (Fe) in water from River Yamuna, Delhi, India, were determined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Heavy metals are potentially toxic and are transferred to the surrounding environment through different pathways. Heavy metals are considered one of the most dangerous groups since they are non-degradable due to their persistent nature, toxicity, and tendency to accumulate in organisms and alters the food chain cycle and still more. Yamuna river water may become contaminated by the accumulation of trace metals and metalloids through emissions from the rapidly expanding industrial areas, disposal of high metal wastes, leaded gasoline and paints, land application of fertilizers, animal manures, sewage sludge, pesticides, wastewater irrigation, and Electronic waste. Trace element toxicity has proven to be a major threat, and there are several health risks associated with it. Even though they do not have any biological role, these metals' toxic effects remain present in some of the other forms harmful for the human body and its proper functioning. On comparison of these heavy metals concentration in water, it was found that Fe, Cu were higher than the permissible limits of WHO, which gives an indication of hazardous risk to human health.

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