IIARD International Institute of Academic Research and Development

INTERNATIONAL JOURNAL OF CHEMISTRY AND CHEMICAL PROCESSES (IJCCP )

E-I SSN 2545-5265
P- ISSN 2695-1916
VOL. 10 NO. 4 2024
DOI: 10.56201/ijccp.v10.no4.2024.pg1.11

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Bacteriological and Physicochemical Evaluation of Raw Milk from some Dairy Farms within Kano Metropolis

Zage, A. U, Bashir, B. M, Ahmad, A. S, Ali, M and Abdullahi S.I

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Abstract

Raw milk is most commonly obtained from the Fulani community in Nigeria. Due to inadequate handling and processing, there is need to evaluate the safety of milk produce sold by dairy farmers in Kano metropolitan. For this purpose, this study focuses on the bacteriological evaluation and physicochemical assessment of raw milk collected from some dairy farms within Kano metropolitan. The raw milk sample was directly collected aseptically from the milking bucket using sterile container with cover. The samples were transported to the Bayero University Kano, New Microbiology laboratory and Biochemistry Laboratory for analysis. Bacteriological analyses carried out were Total bacterial count, Total coliforms count, cultural identification and gram staining. The physicochemical parameters such as organoleptic test, temperature, pH, titratable acidity, moisture content, total dissolved solid, viscosity, electrical conductivity, density, turbidity were determined by standard methods. This study recorded high mean number of total bacterial count (5.07415±0.575 log cfu/ml) and total coliform count (234.717 ± 411.3 log cfu/ml) in the study areas which exceeded the standard limit stipulated by authorities. The bacteria isolated from the study wards were identified to be E. coli 16(13.22%), Staphylococcus aureus 40(33.05%), Salmonella sp. 9(7.43%), Shigella sp. 26(21.48%) and Klebsiella sp. 30(24.79). The result of physicochemical parameters varied among different sample analyzed. pH (7.9225±0.71) and Temperature (oC) (28.4±5.23) of the milk samples from all the study wards comply with the standard limit, while the overall mean Density(g/m3) (1.02956±0.57), Electric conductivity (?S/cm) (4.062±954.2), Titratable acidity (0.13395±0.05), Viscosity (cP) (28.05±5.29), Turbidity (NTU) (76.2±25.0), Total dissolved solid (ppm) (2641.3±593.6) and Moisture content (%) (86.274±3.464) values were higher than the recommended standard. It is concluded th

keywords:

Bacteriological, Physicochemical, Dairy farms, Evaluation, Raw Milk, Metropolitan

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