Home|Journals Follow on Twitter| Subscribe to List

Directory for Medical Articles

Open Access

Original Research

RMJ. 2005; 30(2): 76-78

Determination of Zinc and Lead in Raw and Processed Milk

Huma Naz Awan, Hameed A. Tahir, Uzaira Rafique.

Objective: Concentrations of the essential element zinc and potentially toxic element lead in different processed and raw milk samples.
Methods: The samples of raw milk, collected from different milk venders, while famous processed milk brands were digested by trichloroacetic acid extraction method and analyzed using flame atomic absorption spectrometry.
Results: The average concentration of lead in raw milk ranges from 0.08 to 0.14 ppm and in processed milk its average value is 0.13 ppm, which is higher than the recommended tolerable limit of 0.025 ppm. The zinc contents, both in the processed milk and raw milk ranged from 0.2258 to 0.6569 ppm, the values which are higher than the specified limit.
Conclusion: The raw or fresh milk, that the inhabitants of twin cities are consuming, is higher in lead levels and is unsafe for infants but safe for an adult. Zinc contents in raw or processed milk meets the specified limits. (Rawal Med J 2005;30:76-78).

Key words: Toxicity, lead, zinc, food, milk.

Share this Article

Progress in Orthopedic Science


BiblioMed Home
Follow ScopeMed on Twitter
Author Tools
eJPort Journal Hosting
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
ScopeMed is a Database Service for Scientific Publications. Copyright ScopeMed Information Services.