Abstract
Unpacked milk consumption is common in developing countries like Pakistan, raising concerns regarding adulteration and pathogen contamination. This study analyzed market-sold unpacked milk samples (n = 40) from Faisalabad for qualitative, adulteration, and microbiological parameters and antimicrobial resistance of Escherichia coli. The mean ± standard deviation for each component was determined: Fat% (4.22 ± 0.78), Solid-Not-Fat (SNF)% (7.98 ± 1.19), Protein% (2.96 ± 0.50), Lactose% (4.49 ± 0.70), Density (25.59 ± 3.81 g mL−1), Salts% (0.66 ± 0.08), Added water% (8.56 ± 9.72), Temperature (28.00 ± 1.67), and Freezing point (−0.52 ± 0.72). Adulterants such as sodium chloride, detergent, formalin, urea, carbonate, and hydro-peroxide, along with high heterotrophic bacterial load, were detected. Antibiotic resistance profiling of E. coli strains exhibited resistance, including Multidrug-Resistant (MDR) strains. These findings highlight compromised microbiological and hygiene standards in locally sold unpacked milk in Faisalabad, necessitating urgent attention to ensure public health safety.
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