Surveillance of milk adulteration and its impact on physical characteristics of milk

摘要: An experiment was designed to screen the various adulterants in the market milk sold in the coastal area of Sindh province during the year 2014. A total of 100 milk samples were collected each of twenty (n= 20) from milk producers, milk collectors, middlemen, processors and dairy shops at the vicinity of Badin brought in the Department of Animal Products Technology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University Tandojam, Pakistan. Among all milk samples water (76%) was the common adulterant found to be in the majority of milk samples evaluated in present study, followed by detergent (25%), rice flour (22%), caustic soda (18%), salt (17%) and cane sugar (14%), respectively. The extent of extraneous water in milk samples collected from dairy shops, middlemen and milk collectors was significantly (P 0.05) high than that of samples collected from processor and milk producer. The proportion of adulteration at all the milk intermediaries was (P 0.05) non significant. The pH value of all milk samples collected from different marketing channels was significantly (P 0.05) different from each other except in samples collected from dairy shops and middlemen. Significant difference (P< 0.05) was observed in freezing point of milk samples collected from all milk marketing channels. The specific gravity of milk samples collected from all milk marketing channels was found to be significant (P< 0.05) with each other.