Abstract:
The objective of this study was to assess the levels of essential and non-essential heavy metal traces present in edible salt from Pakistan. Salt is naturally found in rocks, lakes, and seas, and it is a widely consumed food item worldwide. It is important to note that even low concentrations of heavy metals in edible salt can have severe health consequences. The study focused on evaluating the concentrations of essential and non-essential heavy metals in various types of salt available in Karachi, Pakistan. A total of 30 samples were purchased from the local markets in Karachi, Pakistan and categorized accordingly. The analysis was performed using atomic absorption spectroscopy
(AAS) to determine the levels of four metals: Pb (lead), Cd (cadmium), Fe (iron), and Cu (copper). The maximum concentrations observed in the salt samples were as follows: Pb (1.125 ppm), Cd (not detected), Cu (0.500 ppm), and Fe (12.560 ppm). In terms of compliance with standard limits, the results indicated that the levels of Pb, Cd, and Cu in the salt samples adhered to the standards set by Codex (international food standards) and the Pakistan Standards and Quality Control Authority (PSQCA). However, the concentration of iron (Fe) exceeded the standard limits. Among the 30 samples of pink, refined, and unrefined salt, it was observed that 5 pink salt samples exceeded the maximum limit of 10 ppm set by Iranian standards, while the remaining 25 salt samples fell within the acceptable limits. It is crucial to monitor and regulate the levels of heavy metals in edible salt to ensure food safety and safeguard public health, as excessive concentrations can have detrimental effects.
Page(s):
157-157
DOI:
DOI not available
Published:
Journal: Abstract Book on International Conference on Food and Applied Sciences (ICFAS-23) 3-5 August 23, Volume: 0, Issue: 0, Year: 2023
Keywords:
Heavy metals
,
food safety
,
Pink salt
,
refined unrefined salt