Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

QUALITY EVALUATION OF MILK SOLD IN AJMER CITY

BHARTI JAIN AND PUJA MATHUR

Abstract

The study was aimed to evaluate the quality of milk sold by vendors and organized dairies of Ajmer city. Hundred samples of vendors milk were collected. Chemical analysis of milk is required to ensure that minimum compositional standards are met and milk should be free from adulterants and other contaminants. For chemical analysis Milko-Scan 133 was used to evaluate gross chemical composition of milk in terms of water, fat, solid not fat, protein and lactose. Study revealed that all the values of milk components except water were below the PFA standards. Forty one per cent samples could not fulfill the standards for fat while 91 per cent samples were containing SNF less than 8.5 gm per cent. Seventy six per cent and 96 per cent samples were not fulfilling the required standards for protein and lactose respectively. Eighty one per cent of samples contained added water to the milk. None of the samples were adulterated with starch, Sodium-bi-carbonate and urea. Sugar was found to be only adulterant present in two per cent of raw milk samples. Milk supplied by organized dairies of Ajmer fulfilled the required standards mentioned on the milk pouch. A significant positive correlation was seen between price and fat content of milk and also between total solids and price of milk.