Analysis of Milk Collected From Milk Points for Composition, Adulterants and Microbial Quality in District Swat

Humayun Khan, Israr Aziz, Misbahullah Misbahullah, Jamila Haider, Ihsan Ud Din, Khurshaid Anwar, Insan Ud Din, Habibunabi Habibunabi, Hanifur Rehman, Anwarud Din

Abstract


Milk contains nutrients which are building block for growth and cannot be fulfill by any other food.  In Pakistan Approximately 50 %of the milk produced is consumed as fresh or boiled, one sixth as yoghurt or curd and remaining is utilized for manufacturing of indigenous varieties of milk products such as ice cream, butter, khoa, paneerrabri, kheer, barfi and gulabjamin. A total of 150 samples were collected 50 each from tehsil Babozai, kabal and khwazakhela. The composition was determined through lactoscane milk analyzer, microbial quality through MBRT and adulterant analysis through various procedures. High milk Fat was recorded in tehsil Kabal 5.21% followed by 4.48% in tehsil Khwazakhela and 4.08%in tehsil Babozai. High milk SNF% was 6.92% recorded in tehsil Kabal followed by 6.72% in tehsil Khwazakhela and 6.11% in tehsil Babozai. High milk protein was recorded in tehsil Kabal 3.15% followed by 3.1% in tehsil Khwazakhela and 2.79% in tehsil Babozai.

High quantity of lactose in milk was recorded as 3.04% in tehsil Kabal followed by 2.96% in tehsail Khwazakhela and 2.69% in tehsil Babozai. High amount of added water was observed as 36.22% in tehsil Babozai followed by 34.07% in tehsail Khwazakhela and 31.69% in tehsil Kabal. Boric acid and starch were not detected in all the samples processed. Formalin was detected in all tehsils as 26%, 46% and 36% in tehsil Babozai, kabal and khwazakhela, respectively. On MBRT no sample (0%) was found to be of excellent quality. The good quality was found to be one sample in tehsil khwazakhela (0.6%), 41.33% were of fair quality, 32% were of poor quality and 26% samples were of very poor quality. In tehsil Babozai 20 samples were of very poor quality which was high value among all the three tehsils. The maximum no for fair quality was observed in tehsil Kabal followed by tehsil Khwazakhela. The colony forming unit per milliliter (cfu/ml) for salmonella on salmonella shagilla agar was found 538 in tehsil Babozai followed by 510 in tehsil Kabal and 370 cfu/ml was observed in tehsil Khwazakhela. The data regarding e.coli count (cfu/ml) shows that high number (595)  of colonies of e.coli were observed in milk collected from tehsil Kabal followed by 576  in tehsil Babozai and 480 in tehsil Khwazakhela. Colony forming unit on nutrient agar for various bacterial species showed that maximum number of microorganism were observed in milk samples for tehsil Babozai (590) followed by tehsil Khwazakhela 530 and 475 in tehsail Kabal.


Keywords


Milk; Microbial Quality; Adulterants; Salmonella; Colony forming unit, Agar.

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