Abstract
An attempt was made to develop a novel dairy-based dip-like product from heat-acid-induced milk gel and whey. Based upon preliminary trials, the combination of cream (15-35%), whey (60-70%) and common salt (0.8-1.0%, all three as weight of heat-acid-induced milk gel) was selected for optimization of the dairy dip through factorial design of response surface methodology (RSM). Addition of glycerol monostearate, trisodium citrate and sodium hexametaphosphate each at the rate of 0.3% (as weight of heat-acid-induced milk gel) in the formulation was previously standardized. The optimization was carried out by analysing the textural and sensorial parameters of the dairy-based dip. The sensorial parameters (flavour, body and texture, colour and appearance and overall acceptability) and textural parameters (firmness, stickiness, work of shear and work of adhesion) were significantly (P < 0.05) correlated with the ingredient formulation. RSM analysis suggested the use of cream, whey and common salt at amounts of 27.92, 60.26 and 0.8% of the weight of heat-acid-induced milk gel for preparing dairy-based dip with a desirability of 0.84. The formulated product contained a lower fat but higher protein and lactose content than cheese dip.
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