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Comparative study of nutritional status, minerals and heavy metal contents in tetra pack branded milk samples with fresh milk from selected milk producing animals

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Research Paper 01/07/2019
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Comparative study of nutritional status, minerals and heavy metal contents in tetra pack branded milk samples with fresh milk from selected milk producing animals

Tahira Batool, Zahed Mahmood, Muhammad Riaz, Muhammad Zahoor ul Hassan Dogar, Saba Irshad, Mian Anjum Murtaza, Khalid Mehmood, Ghulam Rasool, Asma Irshad, Haleema Sadia
Int. J. Biosci.15( 1), 162-168, July 2019.
Certificate: IJB 2019 [Generate Certificate]
Key: heavy metalsMilkNutritionalProximate composition

Abstract

Milk contains the key ingredients of nutritional importance required for growth; however, increased milk demand and consumption makes essential to use tetra pack market milk to fulfill the required milk demand. Therefore, the current study was planned to analyze and compare the proximate composition of collected fresh and tetra pack milk samples including Cow (S1), Buffalo (S2), Camel (S3), Goat (S4), Haleeb (S5), Dairy pure (S6), Good milk (S7), Milk pack (S8), Umung (S9) and Olper (S10), and to determine the minerals and heavy metal contents in studied milk samples. Proximate analysis was performed following the standard methods while the metals content were determined through Atomic Absorption Spectrophotometer analysis. Our results revealed significant (p<0.05) differences in proximate composition of most of the studied milk samples. Mineral analysis revealed significant (p<0.05) differences in mineral contents (Calcium, Iron and Zinc) of studied milk samples. Among the studied heavy metals, lead (Pb) content was significantly (p<0.05) different in all the milk samples while Nickel (Ni) and Cadmium (Cd) were not detected in any studied milk sample. All the fresh milk samples from selected animals have significantly (p<0.05) higher minerals (Ca, Fe and Zn) contents as compared to branded tetra pack milk samples. The study concluded that tetra pack milk have poor nutritional values compared to fresh milk, especially with respect to lower protein, fat, calcium, iron and zinc that are the major constituent of milk and made it a unique source of nutrients in all foodstuffs.

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