A study on microbial flora and quality of raw and pasteurized milk from Hyderabad Telangana state, India

Sameera  PM; Raja Rao P; A Suresh; Chapla J

doi:10.30574/gscbps.2020.11.1.0080

Authors

Sameera PM SNV Pharmacy Maha Vidyalya, Tarnaka, Hyderabad, India.
Raja Rao P College of Technology, OU, Hyderabad, Telangana, India.
A Suresh College of Technology, OU, Hyderabad, Telangana, India.
Chapla J Department of Botany, OU, Hyderabad, India.

DOI:

https://doi.org/10.30574/gscbps.2020.11.1.0080

Keywords:

Milk, Quality, CFU, TPC, Microbial Flora

Abstract

The present study is to investigate the presence of microbial flora and its quality in raw and pasteurized milk. The milk samples were collected from two different locations in Hyderabad region. A total number of twenty samples were studied including two popular brands of pasteurized milk from dairy out lets. The samples were examined for enumeration of microbial flora on TPC (Total Plate Count) and TCC (Total Coliform Count). The range of TPC and TCC are 1.5x10⁸ to 1.25 x 10⁷ CFU/ml respectively. Purity of pasteurized milk is good in nature. In the present work, preliminary investigations were carried out to ascertain the physicochemical characteristics and nutritional values of various milk samples. Ten raw milk samples and ten pasteurized milk samples from different places of Hyderabad were examined, for a period of six months and analyzed for microbial quality and microbial flora. Pasteurization ensures the quality of milk is up to their required standards.

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References

Ahmed K and Abdellatif N. (2013). Quality control of milk in the dairy industry. World Journal of Dairy Food Science, 8, 18-26.

Arenas RL et al. (2004). Microbiological and physicochemical changes in genestoso cheese. A Spanish acid curd variety throughout ripening. Food Control, 154, 271-279.

Asres AM and Woldemaria HW. (2017). Microbial and Physicochemical qualities of Pasteurized milk. Journal of Food Processing and Technology, 8(1), 1-5.

Buchanan RE and Gibbon NE. (1984). Bergey`s manual of determinative bacteriology, Baltimore. William and Wilkins Co, New York.

Chatterjee SN, Bhattacharjee I, Chatterjee SK and Chandra G. (2006). Microbiological examination of milk in Tarakeswar, India with special reference to coliforms. African Journal of Biotechnology, 5 (15), 1383-1385.

Foley YJ, Buckley J and Murphy MF. (1974). Commercial testing and product control in the dairy industry. University College Cork.

Fromm HI and Boor KJ. (2004). Characterization of Pasteurized Fluid Milk Shelf-life Attributes. Journal of food science, 69, 8.

Hossain TJ, Mohammad KA and Dwaipayan S. (2010). Chemical and Microbiological Quality Assessment of Raw and Processed Liquid Market Milks of Bangladesh. Research Journal and Diary Sciences, 4(4), 28-34.

Jackson KA, Biggerstaff M, Tobin-D Angelo M, Sweat D, Klos J, Nosari, O, Garrison E, Boothe L, Saathoff-Huber L, Hainstock and Fagan RP. (2011). Multistate outbreak of Listeria monocytogenes associated with Mexican-style cheese made from pasteurized milk among pregnant, Hispanic women. Journal of Food Protection, 74, 949–953.

Mahoney F. (1988). Rural dairy technology-Experiences in Ethiopia. ILCA Manual No. 4.Dairy Technology Unit. ILCA, Addis Ababa, Ethiopia. pp 64.

Marjan A, Kamal KD, Kishore SM and Rashed N. (2014). Drug-resistant bacterial pathogens in milk and some milk products. Nutrition and Food Science, 44(3), 241-248.

Richardson, GH. (1985).Standard methods for the examination of dairy products (15th edn).American Public Health Association, Washington DC, USA.

Ralyea RD, Wiedmann M and Boor KJ. (1998).Bacterial tracking in a dairy production system using phenotypic and ribotyping methods. Journal of Food Protection, 61, 1336-1340.

Sarkar S. (2015).Microbiological considerations; Pasteurized Milk. International Journal of Dairy Science, 10(5), 206-218.

Schmidt VSJ, Kaufmann V, Kulozi U, Scherer S and Wenning M. (2012). Microbial biodiversity, quality and shelf life of microfiltered and pasteurized extended shelf life (ESL) milk from Germany, Austria and Switzerland. International Journal of Food Microbiology, 154, 1-9.

Sourav Kumar B, Kamal Kanta D and Aftab Uddin MD. (2014). Microbiological quality analysis of raw, pasteurized, UHT milk samples collected from different locations in Bangladesh. Stamfors. Journal of Microbiology, 4(1), 5-8.

Woldemariam HW and Asres AM. (2017). Microbial and Physicochemical qualities of Pasteurized milk. Journal of Food Processing and Technology, 8(1), 1-5.