Measuring Intracellular Metal Concentration via ICP-MS Following Copper Exposure

Author(s):  
Caitlin L. Williams ◽  
Heather M. Neu ◽  
Sarah L. J. Michel ◽  
D. Scott Merrell
Author(s):  
Ramoona Masoud ◽  
Kianoosh Khosravi-Darani ◽  
Anoosheh Sharifan ◽  
Gholam-Hasan Asadi ◽  
Habibollah Younesi

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.


2018 ◽  
Vol 6 (9) ◽  
pp. 239-245
Author(s):  
M. Sudhakar Reddy ◽  
T. Byragi Reddy ◽  
CH. Venkataramana

Presence of heavy metal concentration in the ground water may cause health problems during intake of through different ways. Present study focused on heavy metal concentration of ground water in the sub-urban areas of Visakhapatnam City, AP, India. Most of heavy metals i.e., Aluminum (Al), Chromium (Cr), Manganese (Mn), Iron (Fe), Nickel (Ni), Zinc (Zn), Arsenic (As), Cadmium (Cd), Mercury (Hg) and Lead (Pb) were analyzed using Inductive Coupled Plasma Mass Spectroscopy (ICP-MS). Mean values of Zn (1.845) > Mn (1.203) > Fe (0.664) > Al (0.334) > Pb (0.245) > Ni (0.082) > Cr (0.066) > As (0.028) > Cd (0.012) > Hg (0.010) results respectively. Results shows that all heavy metal concentrations were exceeded the water quality permissible limit and this area were not suitable for domestic purpose and use before proper treatment.


Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
Y Kho ◽  
M Kim ◽  
NY Park ◽  
H Park ◽  
JH Shin

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