Effect of optimized formulation (combination of bronopolTM and kathonTM) on compositional and physico-chemical parameters of milk samples

: The experiment was conducted to study the effect of optimized preservative formulation (combination of bronopol TM and kathon TM ) on compositional and physico-chemical parameters of milk. The optimized formulation was added at the rate of 0.6% in milk samples and effect was observed on estimation of fat, protein, lactose and ash content during storage at 37 o C. For comparison, the legally permitted preservative (by Food Safety and Standard Authority of India, 2011) formalin was also added at the rate of 0.4% in milk samples. There was no significant effect of optimized formulation on estimation of fat and lactose content for 45 days and total solid (TS), ash and protein content for 90 days. However, on addition of formalin, the fat and lactose values of milk decreased after 15 days of storage and no significant effect was observed on TS, ash, protein content for 90 days and lactose content for 60 days.